Juniper JUNOSE 11.1.X - QUALITY OF SERVICE CONFIGURATION GUIDE 3-21-2010 Configuration Manual Download Page 157

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Part 4

Creating a QoS Scheduler Hierarchy on
an Interface with QoS Profiles

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QoS Profile Overview on page 127

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Configuring and Attaching QoS Profiles to an Interface on page 131

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Configuring Shadow Nodes for Queue Management on page 149

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Monitoring a Scheduler Hierarchy on an Interface with QoS Profiles on page 155

Creating a QoS Scheduler Hierarchy on an Interface with QoS Profiles

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Summary of Contents for JUNOSE 11.1.X - QUALITY OF SERVICE CONFIGURATION GUIDE 3-21-2010

Page 1: ...E Series Broadband Services Routers Quality of Service Configuration Guide Release 11 1 x Juniper Networks Inc 1194 North Mathilda Avenue Sunnyvale California 94089 USA 408 745 2000 www juniper net P...

Page 2: ...ent Nos 5 473 599 5 905 725 5 909 440 6 192 051 6 333 650 6 359 479 6 406 312 6 429 706 6 459 579 6 493 347 6 538 518 6 538 899 6 552 918 6 567 902 6 578 186 and 6 590 785 JUNOSe Software for E Series...

Page 3: ...alms devices links ports or transactions or require the purchase of separate licenses to use particular features functionalities services applications operations or capabilities or provide throughput...

Page 4: ...n connection with such withholding taxes by promptly providing Juniper with valid tax receipts and other required documentation showing Customer s payment of any withholding taxes completing appropria...

Page 5: ...nted to in writing by the party to be charged If any portion of this Agreement is held invalid the Parties agree that such invalidity shall not affect the validity of the remainder of this Agreement T...

Page 6: ...vi...

Page 7: ...ple Shared Shaping of Traffic 79 Chapter 11 Configuring Variables in the Simple Shared Shaping Algorithm 89 Chapter 12 Configuring Compound Shared Shaping of Traffic 99 Chapter 13 Configuring Implicit...

Page 8: ...Configuring IP Multicast Bandwidth Adjustment with QoS Parameters 269 Chapter 28 Configuring the Shaping Mode for Ethernet with QoS Parameters 281 Chapter 29 Configuring Byte Adjustment for Shaping R...

Page 9: ...er Overview 3 QoS Audience 4 QoS Platform Considerations 4 Interface Specifiers 5 QoS Terms 5 QoS Features 7 Configuring QoS on the E Series Router 8 QoS References 9 Part 2 Classifying Queuing and Dr...

Page 10: ...ple Configuring Average Queue Length for RED 28 Example Configuring Dropping Thresholds for RED 29 Example Configuring Color Blind RED 29 Configuring WRED 31 Example Configuring Different Treatment of...

Page 11: ...ight 56 Configuring the HRR Weight for a Scheduler Node or Queue 57 Chapter 8 Configuring Strict Priority Scheduling 59 Strict Priority and Relative Strict Priority Scheduling Overview 59 Relative Str...

Page 12: ...haping for ATM VCs 83 Example Simple Shared Shaping for ATM VPs 85 Example Simple Shared Shaping for Ethernet 86 Chapter 11 Configuring Variables in the Simple Shared Shaping Algorithm 89 Simple Share...

Page 13: ...ng and Shaping 123 Part 4 Creating a QoS Scheduler Hierarchy on an Interface with QoS Profiles Chapter 15 QoS Profile Overview 127 QoS Profile Overview 127 Managing System Resources for Nodes and Queu...

Page 14: ...cheduler Overview 163 Operational QoS Shaping Mode for ATM Interfaces Overview 164 ERX7xx Models ERX14xx Models and the ERX310 Router 164 E120 Router and E320 Router 165 Guidelines for Configuring QoS...

Page 15: ...ps 189 Guidelines for Configuring QoS over 802 3ad Link Aggregation Groups 190 Configuring the Scheduler Hierarchy for Hashed Load Balancing in 802 3ad Link Aggregation Groups 191 Enabling Default Sub...

Page 16: ...ng Interface Members with Upper Layer Protocols in an Interface Set 215 Creating a QoS Parameter on an Interface Superset or Interface Set 216 Configuring a QoS Parameter Definition for an Interface S...

Page 17: ...nts Overview 240 Global QoS Parameter Instance Overview 240 QoS Parameters for Interfaces Overview 241 Creating Parameter Instances 242 Creating a Global Parameter Instance 242 Creating a Parameter In...

Page 18: ...ication 283 Guidelines for Configuring the Cell Shaping Mode with QoS Parameters 283 Configuring a Parameter Definition to Shape Ethernet Traffic Using Cell Mode 284 Example QoS Parameter Configuratio...

Page 19: ...les 327 Monitoring Shared Shapers 329 Monitoring Shared Shaper Algorithm Variables 330 Monitoring Forwarding and Drop Events on the Egress Queue 331 Monitoring Forwarding and Drop Rates on the Egress...

Page 20: ...Troubleshooting QoS 357 Troubleshooting Memory and Processor Use for Egress Queue Rate Statistics and Events 357 Part 8 Index Index 361 xx Table of Contents JUNOSe 11 1 x Quality of Service Configura...

Page 21: ...9 Port Shaping on an Ethernet Module 52 Figure 10 Hierarchical Assured Rate 55 Chapter 8 Configuring Strict Priority Scheduling 59 Figure 11 Sample Strict Priority Scheduling Hierarchy 60 Figure 12 T...

Page 22: ...QoS Profiles Chapter 16 Configuring and Attaching QoS Profiles to an Interface 131 Figure 36 Munged Profile Example 138 Figure 37 Attaching QoS Profiles to ATM Subinterfaces 139 Figure 38 Attaching Qo...

Page 23: ...ter Definitions Scheduler Profiles and QoS Profiles 227 Chapter 25 Configuring a QoS Parameter 229 Figure 60 Physical Network Topology 244 Figure 61 QoS Scheduler Hierarchy 244 Chapter 26 Configuring...

Page 24: ...xxiv List of Figures JUNOSe 11 1 x Quality of Service Configuration Guide...

Page 25: ...the Simple Shared Shaping Algorithm 89 Table 8 Guidelines for Configuring Simple Shared Shaper Algorithm Variables 93 Table 9 Rising Edge Sample When Video Flow Starts 95 Table 10 Data When Video Flow...

Page 26: ...g the Shaping Mode for Ethernet with QoS Parameters 281 Table 27 Supported Interfaces for qos shaping mode and qos cell mode Commands 282 Table 28 Byte Adjustment for Subscribers VC1 and VC2 286 Chapt...

Page 27: ...ds 342 Table 49 show interfaces atm Output Fields 344 Table 50 show ip interface Output Fields 346 Table 51 show interfaces Output Fields 348 Table 52 show interfaces lag members Output Fields 349 Tab...

Page 28: ...xxviii List of Tables JUNOSe 11 1 x Quality of Service Configuration Guide...

Page 29: ...tion in the latest release notes differs from the information in the documentation follow the JUNOSe Release Notes To obtain the most current version of all Juniper Networks technical documentation se...

Page 30: ...Routing Process OSPF 2 with Router ID 5 5 0 250 Router is an Area Border Router ABR Represents information as displayed on your terminal s screen Fixed width text like this There are two levels of ac...

Page 31: ...from the Juniper Networks Web site athttp www juniper net Documentation Feedback We encourage you to provide feedback comments and suggestions so that we can improve the documentation to better meet...

Page 32: ...notes http www juniper net customers csc software Search technical bulletins for relevant hardware and software notifications https www juniper net alerts Join and participate in the Juniper Networks...

Page 33: ...Part 1 QoS on the E Series Router Quality of Service Overview on page 3 QoS on the E Series Router 1...

Page 34: ...2 QoS on the E Series Router JUNOSe 11 1 x Quality of Service Configuration Guide...

Page 35: ...uter provides by default Best effort service provides packet transmission with no assurance of reliability delay jitter or throughput QoS as developed for E Series routers conforms to the IETF Differe...

Page 36: ...responsible for configuring services for individual subscribers by creating parameter instances The parameter instances that QoS clients can create depend on the settings defined in parameter definiti...

Page 37: ...ce tenGigabitEthernet 5 0 0 Related Topics For more information about supported interface types and specifiers on E Series routers see Interface Types and Specifiers QoS Terms Table 3 on page 5 define...

Page 38: ...QoS information for forwarding interfaces stacked above ports of the associated interface type QoS port type profile Applies the rules in the QoS profile to a specific interface QoS profile attachmen...

Page 39: ...without the numeric subscriber rates and weights in scheduler profiles You then use the same QoS and scheduler profiles across all subscribers who use the same services but at different bandwidths red...

Page 40: ...ss the chassis from ingress line module through the switch fabric and onto the egress line module The router supports up to eight traffic classes and therefore up to eight queues per logical interface...

Page 41: ...ple Shared Shaping Overview on page 79 and Compound Shared Shaping Overview on page 99 Configure shaping rates independent of the QoS profile and scheduler profile using QoS parameters See Parameter D...

Page 42: ...Behavior March 2002 RFC 3260 New Terminology and Clarifications for Diffserv April 2002 DSL Forum Technical Report TR 059 DSL Evolution Architecture Requirements for the Support of QoS Enabled IP Ser...

Page 43: ...affic Classes and Traffic Class Groups on page 13 Configuring Queue Profiles for Buffer Management on page 17 Configuring Dropping Behavior with RED and WRED on page 25 Gathering Statistics for Rates...

Page 44: ...12 Classifying Queuing and Dropping Traffic JUNOSe 11 1 x Quality of Service Configuration Guide...

Page 45: ...level of service to packets in the traffic class A traffic class corresponds to what the IETF DiffServ working group calls a traffic class in RFC 2597 Assured Forwarding PHB Group June 1999 Traffic c...

Page 46: ...ory default configuration receive backpressure from the segmentation and reassembly SAR feature in the default qos mode port node Traffic class groups are global in scope by default However you might...

Page 47: ...Traffic Class Group Configuration mode from which you can add classes to or delete classes from the group Each traffic class can appear in only one traffic class group If not explicitly added to a tr...

Page 48: ...traffic class Related Topics Configuring Traffic Classes That Define Service Levels on page 14 Monitoring Traffic Classes and Traffic Class Groups for Defined Levels of Service on page 16 traffic cla...

Page 49: ...16 000 queues are created For specific information about the maximum number of QoS queues supported see JUNOSe Release Notes Appendix A System Maximums The E Series router dynamically manages the sha...

Page 50: ...eful Dynamic Oversubscription The router uses dynamic oversubscription to vary queue thresholds based on the amount of egress buffer memory in use The router divides egress buffer memory into eight re...

Page 51: ...hresholds To prevent the router from setting queue thresholds too low or too high you can specify minimum and maximum queue thresholds You can also specify the conformed length and exceeded length as...

Page 52: ...t utilization At that point the thresholds must reduce to the reserved percentages and the queue thresholds drop from a high threshold to a very low one Queues are not guaranteed to obtain any bufferi...

Page 53: ...namic oversubscription is 0 percent and the 8000 queues with the default buffer weight strictly partition 25 percent of the 32 MB memory leaving 75 percent of the memory for the queues weighted 24 cor...

Page 54: ...face class rate drop rate rate rate ip FastEthernet9 0 2 best effort 0 0 25000 1000000 videoTrafficClass 0 0 375000 1000000 multicastTrafficClass 0 0 925000 1000000 internetTrafficClass 0 0 50000 1000...

Page 55: ...config queue committed length 11000 15000 The range of minimum and maximum lengths is 0 1 GB By default there is no minimum or maximum length The color for committed packets is green 4 Optional Set a...

Page 56: ...s for Queue and Buffers on page 19 buffer weight committed length conformed fraction conformed length exceeded fraction exceeded length queue profile Monitoring Queues and Buffers To monitor queues an...

Page 57: ...ue Thresholds on page 34 Monitoring RED and WRED on page 36 Dropping Behavior Overview Drop profiles control the dropping behavior of a set of egress queues They define the range within the queue wher...

Page 58: ...s Queuing and Buffer Management Overview on page 17 RED and WRED Overview The scheduler maintains an average queue length for each queue configured for RED When a packet is enqueued the current queue...

Page 59: ...Configuring RED Each line module supports a default drop profile and 15 configurable drop profiles You can configure the default drop profile on all E Series line modules except for the ES2 10G LM To...

Page 60: ...nship between average queue length and drop probability You can express thresholds as either percentages of maximum queue size by including the keyword percent or as absolute byte values by omitting t...

Page 61: ...ed threshold percent 30 90 5 host1 config drop profile exit host1 config drop profile colorblind2 host1 config drop profile committed threshold percent 30 90 5 host1 config drop profile conformed thre...

Page 62: ...color sensitive queue profile as shown in Figure 4 on page 30 Figure 4 Color Blind RED Drop Profile with Color Sensitive Queue Profile In the following example the drop profile and queue profile combi...

Page 63: ...ory enhancements have reduced the number of QoS rate counters that are supported per egress queue rom 7 to 5 1 is used for forwarding events 3 are used for tail dropping behavior 1 is used for WRED fu...

Page 64: ...verreaction to short bursts dropping packets unnecessarily 3 Optional Set the minimum and maximum threshold for committed traffic host1 config drop profile committed threshold percent 30 90 4 4 Option...

Page 65: ...t1 config drop profile exceeded threshold percent 20 90 10 Figure 5 Different Treatment of Colored Packets Related Topics Configuring WRED on page 31 Dropping Behavior Overview on page 25 RED and WRED...

Page 66: ...e s claim on its fair share of the egress memory Fixed size queues become problematic as the number of configured queues scales into the thousands because allocating disjointed partitions of buffer me...

Page 67: ...illustrates WRED behavior with dynamic queue thresholding To configure WRED to run on queues whose limits dynamically expand and contract use the percent keyword when you configure thresholds in a dro...

Page 68: ...RED on page 31 Dropping Behavior Overview on page 25 RED and WRED Overview on page 26 Monitoring RED and WRED To monitor drop profiles see Monitoring Drop Profiles for RED and WRED on page 320 36 Moni...

Page 69: ...ckets are dropped Statistics profiles also enable you to use events to monitor the rate statistics You can then use show commands to view the results of the statistics gathering You can create up to 2...

Page 70: ...is configured with cell based QoS shaping mode the egress queue measures cell rate statistics cell rates include ATM Adaptation Layer 5 AAL5 encapsulation and cell padding If the interface is configur...

Page 71: ...er 4 Configuring SNMP Configuring Statistic Profiles for QoS To begin to configure a statistics profile enter Statistics Profile Configuration mode Issue the statistics profile command from Global Con...

Page 72: ...A forwarding rate event occurs each time the forwarding rate exceeds the threshold during the specified rate period A drop event occurs each time the number of packets dropped exceeds the threshold d...

Page 73: ...stics profile statpro 1 8 Attach the QoS profile to the appropriate interface host1 config interface gigabitEthernet 1 0 host1 config subif qos profile qospro 1 host1 config subif exit 9 Optional Disp...

Page 74: ...eue traffic class class15 egress slot 3 By default statistics for all traffic classes and all slots are cleared Related Topics Monitoring QoS Statistics for Rates and Events on page 42 clear fabric qu...

Page 75: ...page 59 Shared Shaping Overview on page 71 Configuring Simple Shared Shaping of Traffic on page 79 Configuring Variables in the Simple Shared Shaping Algorithm on page 89 Configuring Compound Shared S...

Page 76: ...44 Scheduling and Shaping Traffic JUNOSe 11 1 x Quality of Service Configuration Guide...

Page 77: ...er is an HRR scheduler Figure 8 on page 46 is an example of a QoS scheduler s hierarchy As shown in Figure 8 on page 46 the queues feeding a physical port are organized in a hierarchy At each level in...

Page 78: ...ting is ignored If the assured rate is zero the weight setting is used to determine the bandwidth The static assured rate specifies the desired bandwidth This rate is guaranteed until the bandwidth be...

Page 79: ...rarchy 1 Configure a scheduler profile See Configuring a Scheduler Profile for a Scheduler Node or Queue on page 48 2 Optional Configure attributes in the scheduler profile Configure a shaping rate fo...

Page 80: ...ler Node or Queue on page 55 Configuring the HRR Weight for a Scheduler Node or Queue on page 57 Configuring Simple Shared Shaping on page 81 Configuring Compound Shared Shaping on page 100 Using Expr...

Page 81: ...parameter instance For example host1 config scheduler profile sp 1mbs config scheduler profile shaping rate video bandwidth 100 burst 500 milliseconds When the shaping rate for video bandwidth is 2 Mb...

Page 82: ...a Scheduler Node or Queue on page 52 Configuring Port Shaping on page 53 Configuring an Assured Rate for a Scheduler Node or Queue on page 55 Configuring the HRR Weight for a Scheduler Node or Queue...

Page 83: ...Rate Overview on page 54 Configuring an Assured Rate for a Scheduler Node or Queue on page 55 Configuring the HRR Weight for a Scheduler Node or Queue on page 57 Rate Shaping and Port Shaping Overview...

Page 84: ...28000 burst 32767 milliseconds host1 config scheduler profile shaping rate 5000 x 90 The range for the shared shaping rate is 1000 1000000000 bps 1 Kbps 1000 Kbps the default is the minimum shaping ra...

Page 85: ...sample configuration shapes Fast Ethernet port 2 0 to a rate no higher than 80 Mbps Using the following configuration you can shape the corresponding HDLC channel down to 20 Mbps host1 config schedul...

Page 86: ...router to dynamically calculate the assured rate for a scheduler node based on the sum of the assured rates of all its child nodes and queues For example you might use HAR to increase the effective w...

Page 87: ...rofile If the assured rate setting is other than none the default then the assured rate is used instead of the HRR weight setting for the scheduler node or queue Tasks to configure an assured rate are...

Page 88: ...the Assured Rate to an HRR Weight To change an assured rate to an HRR weight 1 Create a scheduler profile host1 config scheduler profile static host1 config scheduler profile 2 Delete the configured a...

Page 89: ...value is in the range 0 4080 The default weight is 8 Weight 0 zero is a special weight that is used for relative strict priority scheduling Use the operator and operandValue variables to configure a...

Page 90: ...58 Configuring the HRR Weight for a Scheduler Node or Queue JUNOSe 11 1 x Quality of Service Configuration Guide...

Page 91: ...w You can configure one or more strict priority queues per interface Strict priority scheduling is implemented with a special strict priority scheduler node that is stacked directly above the port Que...

Page 92: ...rate of 1 Mbps Relative strict priority differs from true strict priority in that it can implement the aggregate shaping rate for both strict and nonstrict traffic With true strict priority you can s...

Page 93: ...66 Configuring Relative Strict Priority Scheduling for Aggregate Shaping Rates on page 68 Comparison of True Strict Priority with Relative Strict Priority Scheduling This section explains how the HRR...

Page 94: ...croseconds Because the strict and nonstrict packets for a VC are scheduled in separate round robins the scheduler cannot enforce an aggregate rate for both of them Schedulers and Relative Strict Prior...

Page 95: ...e HRR scheduler and shape the aggregate for the VC in the SAR scheduler VC backpressure affects only the nonstrict traffic for the VC For this type of configuration you should shape the relative stric...

Page 96: ...e different ATM QoS in the SAR including shaped VP tunnels UBR PCR nrtVBR and CBR services To set the SAR mode use the qos mode port command For more information about operational modes on ATM interfa...

Page 97: ...on the active list the accrued credits allow the queue or node to catch up to the configured rate up to the burst value Normally the burst size is several packet lengths to allow a queue deprived of b...

Page 98: ...lass exit host1 config traffic class Low latency 2 host1 config traffic class exit 2 Configure the auto strict priority traffic class group and add the traffic classes that must receive strict priorit...

Page 99: ...profile exit 5 Attach the QoS profile to an interface host1 config interface atm 2 0 host1 config if qos profile Example qos profile host1 config if exit host1 config This configuration creates the hi...

Page 100: ...ess than the aggregate rate The key is that the burst size must be one or small The burst size determines the maximum sized packet that can squeeze in front of a relative strict priority packet in the...

Page 101: ...information about specifying an expression that you can reference within a scheduler profile see Using Expressions for Bandwidth and Burst Values in a Scheduler Profile on page 48 node qos profile sch...

Page 102: ...70 Configuring Relative Strict Priority Scheduling for Aggregate Shaping Rates JUNOSe 11 1 x Quality of Service Configuration Guide...

Page 103: ...traffic for that logical interface is queued through more than one scheduler hierarchy For example a service provider can configure QoS for voice video and data traffic on a single ATM VC The video t...

Page 104: ...ued through more than one scheduler hierarchy Shared Shaping Shared shaper where the system automatically selects the active constituents The system selects scheduler nodes as active queues above node...

Page 105: ...es of shared shaping are available depending on your hardware Simple shared shaping can shape the best effort node or queue associated with a logical interface to a shared rate Compound shared shaping...

Page 106: ...oth the shared shaping rate command and the shaping rate command in a single scheduler profile For example you can shape the best effort node or queue to accept less than the remainder of the shared s...

Page 107: ...r VP tunnel in the SAR to the sum of the rates This implementation forced a strict priority carve out model for a logical interface because the best effort traffic cannot share unused bandwidth from t...

Page 108: ...ueue bandwidth through the VC 1 node But if the IP 1 queue is not stacked above a VC 1 node it is immune to the shared shaper and the total bandwidth for VC 1 can exceed the shared rate As another exa...

Page 109: ...scheduler profile with the shared shaping rate command You can override this burst for a particular constituent by applying another scheduler profile to that constituent and specifying the burst value...

Page 110: ...le or Compound Shared Shaping on page 114 Configuring Explicit Constituents for Simple or Compound Shared Shaping on page 120 78 Guidelines for Configuring Simple and Compound Shared Shaping JUNOSe 11...

Page 111: ...ic to the shared rate minus the video and voice queue rates The bandwidth for the voice and video queues is determined by the configuration of the hierarchical scheduler The shared shaper does not act...

Page 112: ...ple Shared Shaping for Triple Play Networks Simple shared shaping enables you to shape the logical interface to a single rate for triple play networks In Figure 18 on page 80 the AF traffic class grou...

Page 113: ...fort queue or the best effort scheduler node for the logical interface The router locates the other queues associated with the logical interface and shapes that set of queues to the shared rate You do...

Page 114: ...ates to the value of the shared rate minus the combined voice and video traffic rate By default shared shaping is set to auto In this mode the router selects the type of shared shaping that is applied...

Page 115: ...are the 1 Mbps with the best effort traffic The voice queue has first claim on the shared 1 Mbps but only up to its individual shaping rate of 200 Kbps The video queue claims up to the next 300 Kbps T...

Page 116: ...fault mode by issuing the no qos mode port command If this QoS profile is attached in low CDV mode the shaper is effective but the CDV is not correctly bounded because the VC is not reshaped in the SA...

Page 117: ...Figure 20 VP Shared Shaping The following set of commands configures the shared shaper in Figure 20 on page 85 config scheduler profile 2mbps config scheduler profile shaping rate 2000000 config sched...

Page 118: ...rovider configures a shapeless VP tunnel in the SAR QoS sets the SAR shaper for the VP to match the 5 Mbps shared shaping rate and the CDV is bounded for the VP tunnel Related Topics Configuring Simpl...

Page 119: ...ne instance interface type svlan qos parameter define instance interface type ethernet qos parameter define exit config qos parameter define vlan max rate qos parameter define controlled interface typ...

Page 120: ...s profile svlan node scheduler profile svlan g2 group g2 config qos profile ethernet group g2 scheduler profile default 5 Attach the QoS profile to the S VLANs on Fast Ethernet interface 11 0 config i...

Page 121: ...orithm Overview You can configure variables within the simple shared shaper algorithm to control the minimum dynamic rate for all simple shared shapers on the router Configuring variables in the simpl...

Page 122: ...ort traffic is not starved Figure 23 Less Conservative Simple Shared Shaper Behavior You can also configure the more liberal simple shared shaper behavior that is displayed in Figure 24 on page 90 In...

Page 123: ...bps to 0 Mbps 4 Mbps of bandwidth becomes available The simple shared shaper converges from 1 Mbps to 5 Mbps by half of the available bandwidth per period In this example the dynamic shaping rates for...

Page 124: ...g the following formula The system prevents the new dynamic rate from becoming less than zero Step 4 Determine the Larger Value of the New The simple shared shaper determines the larger of the new dyn...

Page 125: ...figuring Simple Shared Shaper Algorithm Variables Most Conservative Conservative Moderate Liberal Most Liberal Control 99 75 50 25 0 convergence factor 1000 600 400 25 0 maximum voql 1000 300 200 50 0...

Page 126: ...ost1 config qos shared shaper control minimum dynamic rate percent 50 The range for the minimum dynamic rate value is 0 100 percent The default value is 0 5 Optional Configure a maximum value for the...

Page 127: ...l 11000 11000 11000 11000 11000 11000 11000 11000 13080 1 5 0 0 0 Most liberal 10994 10998 10994 10979 10972 10867 10470 8880 9542 1 5 0 0 0 Liberal 10953 10967 10814 10628 10329 9651 8303 5606 6510 1...

Page 128: ...se the amount of video measured in the first falling period is random in the range 0 4 Mbps non inclusive Table 10 Data When Video Flow Stops Period of Dynamic Rate in Kbps 10 9 8 7 6 5 4 3 2 1 Contro...

Page 129: ...thm Overview on page 89 Variables of the Simple Shared Shaper Algorithm on page 91 Configuring Simple Shared Shaper Algorithm Variables on page 93 Sample Process for Controlling the Simple Shared Shap...

Page 130: ...98 Sample Process for Controlling the Simple Shared Shaper Algorithm JUNOSe 11 1 x Quality of Service Configuration Guide...

Page 131: ...shared rate cannot be exceeded Compound shared shaping responds to changes in traffic rates more rapidly than simple shared shaping in the order of milliseconds Supported Hardware for Compound Shared...

Page 132: ...them by the hierarchical scheduler 2 Priority constituents are ordered according to their priority 3 The weighted constituents subdivide the remaining shared bandwidth in proportion to their shared we...

Page 133: ...Configure the QoS profile and reference the scheduler profile config qos profile compound config qos profile atm vc node config qos profile atm vc node group AF config qos profile atm vc node group E...

Page 134: ...video queue in the AF traffic class group is a strict constituent that can claim up to 300 Kbps of the remaining 800 1000 Kbps of shared bandwidth The best effort queue for logical interface VC 1 is a...

Page 135: ...aper profiles to the voice and video traffic queues host1 config qos profile atm vc queue traffic class best effort scheduler profile shared 1mbps host1 config qos profile atm vc queue traffic class v...

Page 136: ...ound shared rate of 5 Mbps The voice traffic gets strict priority scheduling for up to 400 Kbps of the shared rate on the VP The video traffic gets up to 2 Mbps of the remaining 4 6 5 Mbps on the VP F...

Page 137: ...figure the scheduler profile for AF video traffic host1 config scheduler profile 2Mbps host1 config scheduler profile shaping rate 2000000 4 Configure the scheduler profile for EF voice traffic host1...

Page 138: ...m vc queue traffic class best effort host1 config qos profile atm vc queue traffic class AF host1 config qos profile atm vc queue traffic class EF host1 config qos profile exit 10 Attach the QoS profi...

Page 139: ...plicit constituent selection when you want to shape a subset of the interface traffic to the shared rate An example of this is when you want the sum of best effort and voice traffic to be shaped to th...

Page 140: ...the simple shared shaper does not allocate bandwidth among constituents instead it controls just the best effort queue or node Compound implicit Constituents are selected automatically by the software...

Page 141: ...d shaping are the same The process operates according to the following rules 1 The point at which the scheduler profile that contains a shared shaping rate command is associated with a best effort nod...

Page 142: ...VC 2 nodes and VC 2 queues Nodes are selected over queues so the implicitly selected active constituents are the VC 2 default group node the VC 2 Group EF node and the VC 2 Group AF node Figure 29 Im...

Page 143: ...p EF node and the VP 1 Group AF node Implicit Bandwidth Allocation for Compound Shared Shaping After selecting the implicit constituents for compound shared shaping the router places the constituents...

Page 144: ...ocates shared bandwidth to them according to the following rules 1 Strict constituents in the auto strict priority traffic class group For multiple strict priority traffic class groups bandwidth alloc...

Page 145: ...r profile A specifies the shared shaping rate of 1Mbps for the best effort node which is associated with a VC logical interface The node is further configured with a weight of 1 Scheduler profile B sp...

Page 146: ...ed Topics Configuring Implicit Constituents for Simple or Compound Shared Shaping on page 114 Configuring Implicit Constituents for Simple or Compound Shared Shaping There are two types of implicit co...

Page 147: ...t how the system selects the compound implicit constituent If the command is present for a constituent that was implicitly selected the software configures that constituent using the strict priority o...

Page 148: ...profile that you associate with a best effort node or queue to identify the logical interface NOTE If you explicitly specify both a node and the queues stacked above the node as constituents in a sch...

Page 149: ...rules are followed in this example the association of the shared shaper with the VC 1 best effort node selects the VC 1 best effort node the VC 1 Group EF node and the VC 1 Group AF node Explicit Wei...

Page 150: ...shaping rate VLAN 1 TC voice1 queue Weighted constituent that shares bandwidth with its weighted shared shaper siblings in a proportion of 4 10 VLAN 1 TC voice2 queue Weighted constituent that shares...

Page 151: ...xplicit Constituent Strict constituent that can consume up to its legacy shaping rate VLAN 1 TC voice1 queue Weighted constituent that shares bandwidth with its weighted shared shaper siblings in a pr...

Page 152: ...iority or weighted Strict priority constituents are allocated bandwidth ahead of weighted constituents Before you configure explicit constituents Configure the traffic classes and traffic class groups...

Page 153: ...is 8 The weights of all sibling weighted constituents are added together Then each weighted constituent is allocated bandwidth according to the proportion of its weight to the total Related Topics Co...

Page 154: ...122 Configuring Explicit Constituents for Simple or Compound Shared Shaping JUNOSe 11 1 x Quality of Service Configuration Guide...

Page 155: ...ed in the following section Monitoring QoS Scheduling and Shaping on page 123 Monitoring QoS Scheduling and Shaping To monitor QoS scheduling see Monitoring the QoS Scheduler Hierarchy on page 322 Mon...

Page 156: ...124 Monitoring QoS Scheduling and Shaping JUNOSe 11 1 x Quality of Service Configuration Guide...

Page 157: ...iew on page 127 Configuring and Attaching QoS Profiles to an Interface on page 131 Configuring Shadow Nodes for Queue Management on page 149 Monitoring a Scheduler Hierarchy on an Interface with QoS P...

Page 158: ...126 Creating a QoS Scheduler Hierarchy on an Interface with QoS Profiles JUNOSe 11 1 x Quality of Service Configuration Guide...

Page 159: ...achment point in the interface hierarchy You can attach a QoS profile to the interface at the base of the subtree hierarchy an ATM VP or an S VLAN For example a QoS profile attached to an ATM port spe...

Page 160: ...exhaust node resources For example the ethernet default QoS profile specifies both an IP and a VLAN node Configuring 16 000 IP over VLAN subinterfaces consumes all 32 000 nodes with no node resources...

Page 161: ...e group nodes and shadow nodes We recommend that you configure an Ethernet shadow node in the group with the following QoS profile rule host1 config qos profile ethernet shadow node group groupname Th...

Page 162: ...130 Scaling Subscribers on the TFA ASIC with QoS JUNOSe 11 1 x Quality of Service Configuration Guide...

Page 163: ...page 136 Example Port Type QoS Profile Attachment on page 139 Example QoS Profile Attachment to Port on page 141 Example Diffserv Configuration with Multiple Traffic Class Groups on page 143 Supporte...

Page 164: ...ffic classes See Configuring Traffic Classes That Define Service Levels on page 14 Configure the queuing hierarchy See Configuring Queue Profiles to Manage Buffers and Thresholds on page 22 Configure...

Page 165: ...ace unless you also specify the strict priority group 4 Optional Configure a queue for interfaces in the specified traffic class host1 config qos profile atm queue traffic class strict priority schedu...

Page 166: ...erface 1 Enter Interface Configuration mode for the interface host1 config interface gigabitEthernet 2 0 2 Attach a QoS profile to the interface host1 config if qos profile qosp ethernet queuing Attac...

Page 167: ...ype profile supplies QoS information for all forwarding interfaces stacked above all ports of the associated interface type Instead of using the default port type profile you can explicitly attach a Q...

Page 168: ...ttached to an interface the router searches the interface stack from the point of attachment down to the port interface at the base of the interface hierarchy to find all QoS profiles attached under t...

Page 169: ...ofile Nodes are subsequently added from profiles that are attached higher in the interface column until all node rules from the interface column have been added or the maximum hierarchy of three nodes...

Page 170: ...s profile exit The queue rule for interface type IP traffic class priority data in the QoS profile that is attached to ATM 11 0 2 effectively overrides the queue rule for the same interface type and t...

Page 171: ...g qos profile atm vp node scheduler profile sp1 host1 config qos profile atm vc queue traffic class tc1 scheduler profile sp1 queue profile qp1 host1 config qos profile atm vc queue traffic class tc2...

Page 172: ...vc queue tc3 sp3 qp3 atm default atm ip node default default atm default atm atm vc node default default atm default atm Bridge node default default atm default atm ipv6 node default default atm defau...

Page 173: ...attachment atm ATM11 0 qos interface rule traffic scheduler queue t class profile type type class profile profile group atm default atm ip node default default atm default atm atm vc node default def...

Page 174: ...ueue profile qp5 host1 config qos profile exit 2 Create and configure QoS profile qp2 host1 config qos profile qp2 host1 config qos profile atm vp node scheduler profile sp1 host1 config qos profile a...

Page 175: ...st to the leaf node is used however Traffic class tc3 comes from QoS profile qp2 which is attached to ATM subinterface ATM 11 0 2 Queues for traffic classes tc4 and tc5 come from QoS profile qp1 which...

Page 176: ...class best effort config traffic class exit 2 Create scheduler profiles for the assured forwarding expedited forwarding and best effort groups Specify strict priority scheduling for the expedited for...

Page 177: ...and best effort traffic class groups config qos profile qpDiffServExample config qos profile ethernet group assured fwd scheduler profile assuredGroup config qos profile ethernet group expedited fwd...

Page 178: ...raffic class voice scheduler profile voice 8 config qos profile ip queue traffic class video scheduler profile video 9 config qos profile ip queue traffic class best effort scheduler profile best effo...

Page 179: ...classes data video and voice Figure 40 Diffserv Configuration Without Traffic Class Groups Because the BE AF and EF groups have no queues their scheduler attributes weight assured rate shaping rate do...

Page 180: ...148 Example Diffserv Configuration with Multiple Traffic Class Groups JUNOSe 11 1 x Quality of Service Configuration Guide...

Page 181: ...le Shadow Nodes on Different Traffic Class Groups on page 154 Shadow Node Overview The frame forwarding ASIC FFA and the 10 Gigabit Ethernet forwarding ASIC TFA require that all queues be above the po...

Page 182: ...level for any line module with the EFA EFA2 FFA or TFA hardware Shadow nodes enable you to specify the weight and the shaping rate of the added node Shadow nodes can also conserve scheduler node resou...

Page 183: ...ied after QoS profile AB shadow is assigned to interfaces A and B As a result interfaces A and B have 25 percent of the S VLAN bandwidth and interface C has 50 percent of the S VLAN bandwidth The S VL...

Page 184: ...t 1 2 3 Required Nodes Related Topics Managing System Resources for Nodes and Queues on page 127 Scaling Subscribers on the TFA ASIC with QoS on page 128 Configuring Shadow Nodes Before you configure...

Page 185: ...ior on page 150 Managing System Resources for Shadow Nodes on page 151 Monitoring a Scheduler Hierarchy on an Interface with QoS Profiles on page 155 group node qos profile queue shadow node Example S...

Page 186: ...scheduler profile shadow host1 config qos profile ethernet queue traffic class best effort scheduler profile default host1 config qos profile vlan node host1 config qos profile ip node host1 config qo...

Page 187: ...on page 155 Monitoring a Scheduler Hierarchy on an Interface with QoS Profiles To monitor a scheduler hierarchy on an interface see Monitoring the QoS Profiles Attached to an Interface on page 339 Mon...

Page 188: ...156 Monitoring a Scheduler Hierarchy on an Interface with QoS Profiles JUNOSe 11 1 x Quality of Service Configuration Guide...

Page 189: ...ATM on page 159 Configuring QoS for Gigabit Ethernet Interfaces and VLAN Subinterfaces on page 177 Configuring QoS for 802 3ad Link Aggregation Groups on page 183 Configuring QoS for L2TP Sessions on...

Page 190: ...158 Interface Solutions for QoS JUNOSe 11 1 x Quality of Service Configuration Guide...

Page 191: ...r Per Port Queuing on ATM Interfaces on page 171 Configuring the QoS Shaping Mode for ATM Interfaces on page 174 Disabling Per Port Queuing on ATM Interfaces on page 175 Monitoring QoS Configurations...

Page 192: ...eduled through the HRR scheduler and then sent to the SAR scheduler from where the cells are scheduled onto the circuit If a SAR VC queue begins to fill up the SAR scheduler issues VC backpressure mes...

Page 193: ...out of the port at a rate that closely matches strict ATM contract rates SAR VP shaping is configured for the physical port using the atm vp tunnel command Related Topics Integrating the HRR Scheduler...

Page 194: ...ter the qos mode port commands are valid only for the major interface on port 0 To properly integrate the schedulers make sure that the HRR and the SAR schedulers shape packets at the same rate If the...

Page 195: ...You can configure the following modes Default integrated mode The ATM SAR scheduler does the scheduling Both VC and port backpressure are enabled and the HRR scheduler does minimal scheduling The SAR...

Page 196: ...atistics such as transmitted bytes and dropped bytes based on bytes within frames Cell shaping reports the statistics in bytes within cells and also accounts for cell encapsulation and padding overhea...

Page 197: ...outers use the following rules to determine the operational shaping mode used for a port 1 If the specific port has a QoS shaping mode configured the operational shaping mode for that port is the same...

Page 198: ...euing on ATM Interfaces on page 169 Configuring Low CDV Mode for Per Port Queuing on ATM Interfaces on page 171 Configuring the QoS Shaping Mode for ATM Interfaces on page 174 Guidelines for Configuri...

Page 199: ...ping rate in the SAR Special rules apply for VP tunnels shaped in the SAR When shaping in the SAR configure ATM VP nodes in the HRR and arrange that the aggregate traffic dequeued from the HRR for tha...

Page 200: ...ows the default integrated mode Figure 44 Default Integrated Mode To configure default integrated mode 1 From the desired port set the QoS port mode to default integrated mode host1 config interface a...

Page 201: ...et Queuing on the SAR Scheduler Overview on page 163 Guidelines for Configuring QoS over ATM on page 166 atm vp tunnel interface atm qos mode port Configuring Low Latency Mode for Per Port Queuing on...

Page 202: ...st1 config scheduler profile strict priority host1 config scheduler profile exit 4 Configure the QoS profile with two ATM VC queues host1 config qos profile low latency q p host1 config qos profile at...

Page 203: ...the shaping rate of the VPs VCs or both based on the QoS profile and the scheduler profile Therefore the QoS shaping mode must be set to the cell mode In low CDV mode the SAR scheduler converts frame...

Page 204: ...Figure 46 Low CDV Mode per VP CDVT Figure 47 Low CDV Mode per VC CDVT 172 Configuring Low CDV Mode for Per Port Queuing on ATM Interfaces JUNOSe 11 1 x Quality of Service Configuration Guide...

Page 205: ...nfig qos profile low cdv q p host1 config qos profile atm vc node scheduler profile 1m host1 config qos profile atm vp node scheduler profile 2m host1 config qos profile atm vc queue traffic class bes...

Page 206: ...e SAR Scheduler Overview on page 163 Guidelines for Configuring QoS over ATM on page 166 atm vp tunnel interface atm qos mode port Configuring the QoS Shaping Mode for ATM Interfaces In frame mode SAR...

Page 207: ...de command must appear in the QoS profile attached to the ATM port To disable per port queuing 1 Specify the ATM interface for which you want to disable per port queuing host1 config interface atm 2 0...

Page 208: ...guration of QoS Profiles on page 341 Monitoring the QoS Scheduler Hierarchy on page 322 Monitoring Shared Shapers on page 329 176 Monitoring QoS Configurations for ATM JUNOSe 11 1 x Quality of Service...

Page 209: ...erfaces is difficult because of different layer 2 encapsulations and the ATM cell pad trailer and header The SAR scheduler is not available for Ethernet interfaces However you can still configure the...

Page 210: ...figured in downstream ATM switches Using cell shaping also reduces the number of packet drops in the Ethernet network The setting for port 0 provides the default shaping mode for all ports on the same...

Page 211: ...efault mode for all E Series routers In cell mode shaping is controlled by the QoS application Shaping is based on the number of bytes in cells and accounts for the ATM cell encapsulation and padding...

Page 212: ...uto configure ip host1 config profile vlan profile ip ipProfile host1 config profile vlan service profile vlanServiceProfile host1 config profile exit host1 config profile profile ipProfile host1 conf...

Page 213: ...ame vsa attr test DEBUG 06 17 2007 14 50 19 radiusAttributes ingress policy stats vsa attr 1 DEBUG 06 17 2007 14 50 19 radiusAttributes egress policy name vsa attr test DEBUG 06 17 2007 14 50 19 radiu...

Page 214: ...fig vlan profile vlan service profile show ip interface show ip route show qos interface hierarchy Monitoring QoS Configurations for Ethernet To monitor Ethernet configurations for QoS Monitoring the...

Page 215: ...egation Groups on page 192 Configuring Load Rebalancing for 802 3ad Link Aggregation Groups on page 193 Monitoring QoS Configurations for 802 3ad Link Aggregation Groups on page 195 QoS for 802 3ad Li...

Page 216: ...es of the QoS profiles attached below the subscriber interface in the interface column Rules in higher attached QoS profiles override or eclipse rules in lower attached QoS profiles For example rules...

Page 217: ...lost Administratively Disabling a Link and QoS When a link is administratively disabled the system immediately redirects traffic from the link to other links in the LAG Adding a New Link to the LAG a...

Page 218: ...s are not available Sample Scheduler Hierarchy for Hashed Load Balancing Figure 48 on page 186 displays a sample 802 3ad link aggregation scheduler hierarchy that uses hashed load balancing The Gigabi...

Page 219: ...ffic However cloned S VLANs can introduce anomalous scheduling behavior A shaped S VLAN node within the LAG shapes traffic on a per link basis Shaping a LAG S VLAN node to 2 Mbps on a LAG with 2 links...

Page 220: ...en partitioning the scheduler hierarchy that includes 1000 VLAN subinterfaces the system binds 500 of the subinterfaces to port 0 and binds another 500 to port 1 The binding for a given VLAN subinterf...

Page 221: ...ctive link in the LAG carriers an equal number of upper layer subinterfaces For this purpose the system counts each upper layer interface as a single subscriber regardless of the number of forwarding...

Page 222: ...erface is considered the root of the interface hierarchy You cannot configure hierarchical QoS for IP configured directly over a LAG interface You cannot obtain QoS information or statistics for IP in...

Page 223: ...eue traffic class tc2 3 Create the LAG interface and attach the QoS profile host1 config interface lag lg1 host1 config if qos profile hashed lag Related Topics QoS for 802 3ad Link Aggregation Interf...

Page 224: ...rofile vlan node scheduler profile subscriber host1 config qos profile svlan node scheduler profile svlan host1 config qos profile svlan node group g1 scheduler profile svlan 3 Create the LAG interfac...

Page 225: ...uide the system to rebalance host1 config if load rebalance period 120 start threshold 20 percent stop threshold 100 percent maximum improvement 300 This example specifies that the system rebalance wi...

Page 226: ...mount of imbalance is measured as a percentage of the average load per link The range is 0 100 percent For example the average load per link in a LAG is 500 Specifying the stop threshold 2 percent com...

Page 227: ...192 interface lag load rebalance Monitoring QoS Configurations for 802 3ad Link Aggregation Groups To monitor Ethernet configurations for QoS Monitoring the QoS Configuration of Fast Ethernet Gigabit...

Page 228: ...196 Monitoring QoS Configurations for 802 3ad Link Aggregation Groups JUNOSe 11 1 x Quality of Service Configuration Guide...

Page 229: ...or LNS The dynamic attachment process uses RADIUS and AAA enabling a QoS profile to be attached to a dynamic L2TP session interface when the newly created interface has the QoS Profile Name 26 26 RADI...

Page 230: ...P Scheduler Hierarchy Figure 53 LNS MLPPP QoS Scheduler Hierarchy Figure 54 LAC over Ethernet Without VLANs Scheduler Hierarchy 198 Sample Scheduler Hierarchies for L2TP JUNOSe 11 1 x Quality of Servi...

Page 231: ...procedures the resulting scheduler hierarchy depends on the type of network architecture that you use L2TP session interfaces have default QoS profiles and scheduler nodes The default configuration in...

Page 232: ...or an L2TP LNS session 1 Remove the best effort traffic class rule from the IP interface type of the server default QoS profile host1 config qos profile server default host1 config qos profile no ip q...

Page 233: ...y See Configuring Queue Profiles to Manage Buffers and Thresholds on page 22 Configure the scheduler hierarchy and shaping with scheduler profiles See Configuring a Scheduler Hierarchy on page 47 To c...

Page 234: ...2TP LNS Sessions You can configure QoS for a tunnel service port that can be used as a dynamic interface associated with an L2TP LNS session Before you configure QoS for a tunnel server port Configure...

Page 235: ...out tunnel server ports see JUNOSe Physical Layer Configuration Guide group interface node qos port type profile qos profile queue scheduler profile traffic class tunnel server QoS and L2TP TX Speed A...

Page 236: ...s because they might take place after the LAC has sent the message that contains AVP 24 Shaping Mode When the QoS shaping mode is set to cell for an interface QoS reports the ATM rate In cell mode use...

Page 237: ...Monitoring the QoS Scheduler Hierarchy on page 322 Monitoring Shared Shapers on page 329 Monitoring QoS Configurations for L2TP 205 Chapter 22 Configuring QoS for L2TP Sessions...

Page 238: ...206 Monitoring QoS Configurations for L2TP JUNOSe 11 1 x Quality of Service Configuration Guide...

Page 239: ...erset or an Interface Set on page 218 Deleting an Interface Superset or an Interface Set on page 219 Example Configuring Interface Sets for 802 3ad Link Aggregation Groups on page 220 Interface Sets f...

Page 240: ...the interface set must have the same S VLAN ID as the parent Restricted VLAN set Interface set of VLAN subinterfaces that span S VLANs The parent of the interface set is an Ethernet major interface Th...

Page 241: ...t of the interface superset can be any type of interface over which IP can be configured including ATM VP Gigabit Ethernet or 802 3ad LAG The parent of the interface superset controls the type of memb...

Page 242: ...the interface set Figure 58 Scheduler Hierarchy with Nodes at Interface Set and Superset Scheduling and Shaping Interface Sets You can apply QoS to interface sets and interface supersets in the same w...

Page 243: ...ure an interface superset See Configuring Interface Supersets for QoS on page 212 2 Configure an interface set as members of the superset See Configuring Interface Sets for QoS on page 213 3 Add inter...

Page 244: ...rface sets or subinterfaces to the interface superset Restricting an Interface Superset to an S VLAN ID or an ATM VP When you configure interface supersets for VLANs or ATM VCs the member interfaces n...

Page 245: ...onfig qos interface set vlan business 2 Specify the parent interface host1 config interface set qos interface parent vlan superset The parent must be an interface superset 3 Set the member interface t...

Page 246: ...ce Set with RADIUS on page 215 Changing and Deleting Interface Members in an Interface Set on page 215 Changing Interface Members with Upper Layer Protocols in an Interface Set on page 215 Adding Inte...

Page 247: ...s in an interface set we recommend that you delete the interface member from the interface set before associating it with another interface To move an interface member from an interface set to another...

Page 248: ...for an Interface Superset on page 217 Creating a QoS Parameter Instance for an Interface Set on page 217 Configuring a QoS Parameter Definition for an Interface Superset or an Interface Set You can c...

Page 249: ...ess data 3 Attach the QoS profile host1 config qos interface superset qos profile vlan Creating a QoS Parameter Instance for an Interface Set To create a QoS parameter instance for an interface set 1...

Page 250: ...erset or an interface set 1 Configure the QoS profile hos1 config qos profile vlan 2 Specify an interface superset or an interface set as a queue For interface supersets host1 config qos profile super...

Page 251: ...n Interface Set You can delete an interface superset or an interface set after configuration Tasks to delete an interface superset or an interface set include Deleting an Interface Superset on page 21...

Page 252: ...ets for QoS on page 213 qos interface parent qos interface set qos interface superset Example Configuring Interface Sets for 802 3ad Link Aggregation Groups This example shows how to configure interfa...

Page 253: ...superset to the Ethernet parent interface host1 config interface superset restricted interface gigabitEthernet 4 0 0 Related Topics qos interface parent qos interface superset restricted Example Conf...

Page 254: ...222 Example Configuring Interface Sets for 802 3ad Link Aggregation Groups JUNOSe 11 1 x Quality of Service Configuration Guide...

Page 255: ...eters on page 261 Configuring IP Multicast Bandwidth Adjustment with QoS Parameters on page 269 Configuring the Shaping Mode for Ethernet with QoS Parameters on page 281 Configuring Byte Adjustment fo...

Page 256: ...224 Managing Queuing and Scheduling with QoS Parameters JUNOSe 11 1 x Quality of Service Configuration Guide...

Page 257: ...r profiles You then use the same QoS and scheduler profiles across all subscribers who use the same services but at different bandwidths reducing the total number of QoS profiles and scheduler profile...

Page 258: ...ached to an ATM virtual circuit ATM VC modifies QoS settings on ATM virtual path VP nodes You cannot configure downreferences for QoS parameters We also recommend that you do not configure downreferen...

Page 259: ...stment or RADIUS QoS client Related Topics For definitions of other common QoS terms see QoS Terms on page 5 Relationship Among QoS Parameters Scheduler Profiles and QoS Profiles Figure 59 on page 227...

Page 260: ...heduler profile in a QoS profile rule QoS Client Tasks After the QoS administrator defines parameter definitions 1 The QoS client creates a parameter instance and associates it with a logical interfac...

Page 261: ...inistrator you can create a parameter definition that constrains how a QoS client can create a parameter instance When QoS clients create a parameter instance they work within the attributes that you...

Page 262: ...ion Configuration mode The naming guidelines for parameters differ from other QoS features such as QoS profiles and scheduler profiles Parameter names must begin with a letter to avoid confusion with...

Page 263: ...stance can control You can define up to four controlled interface types for each parameter definition by issuing the controlled interface type command in QoS Parameter Definition Configuration mode Ex...

Page 264: ...an node for each subscriber with a shared shaping rate specified by the parameter max subscriber bandwidth host1 config qos profile subscriber triple play host1 config qos profile vlan queue traffic c...

Page 265: ...onfiguration mode The following interface types are supported ip l2tp session atm vc vlan QoS clients cannot create a parameter instance for subscriber interface types that is above the lowest control...

Page 266: ...nfig subif qos parameter max subscriber bandwidth 200000 parameter instance is out of range You cannot create or modify an existing range if the change causes any explicit parameter instance values to...

Page 267: ...You can reference a parameter in a scheduler profile as long as all parameters in the scheduler profile share at least one controlled interface type Otherwise a QoS profile rule cannot reference the...

Page 268: ...r operand pairs Simple parameter expressions are displayed in the following example Simple parameter expressions usually contain a constant rate or a single parameter name host1 config scheduler profi...

Page 269: ...nd max operators to specify the allowable range of an expression result For example to specify a shaping rate at a minimum of 1 Mbps and a maximum of 5 Mbps use the following expression host1 config s...

Page 270: ...a Basic Parameter Definition for QoS Administrators This section describes how to configure an individual parameter definition and how to associate it with an application Several of the following task...

Page 271: ...e Optional Define the range of values that a QoS client can assign to a parameter instance host1 config qos parameter define range 64000 8000000 3 Reference the parameter within a scheduler profile pa...

Page 272: ...such as RADIUS or SRC As a QoS client you can use QoS parameter instances to set the following attributes of a node or queue Assured rate Shaping rate Shared shaping rate Scheduler weight Global QoS...

Page 273: ...meter instance is created for both an S VLAN and a VLAN The most specific instance overrides the other instances However you cannot configure QoS parameter instances to downreference through the inter...

Page 274: ...parameter instance for an interface 1 Specify an interface host1 config interface atm 11 0 1 host1 config interface gigabitEthernet 2 0 2 Specify the parameter name and the value host1 config subif qo...

Page 275: ...st1 config if svlan id 1 202 3 Attach the parameter instance to an S VLAN ID on the interface host1 config if svlan 202 qos parameter max subscriber bandwidth 6000000 Related Topics Parameter Instance...

Page 276: ...scheduler nodes correspond to the subscribers Figure 61 on page 244 shows the QoS scheduler hierarchy that the QoS client creates when configuring a different service for each subscriber Figure 61 Qo...

Page 277: ...gured for Subscriber 2 Procedure for QoS Administrators This section describes the procedures to configure the scheduler hierarchy shown in Figure 61 on page 244 by using QoS parameters Configuring Tr...

Page 278: ...le the parameter to control VLANs c Enable the parameter to have instances created on VLAN subinterfaces d Specify the valid range of this parameter as 1 6 host1 config qos parameter define subscriber...

Page 279: ...ffort b Configure the shared shaping rate by referencing the max subscriber bandwidth parameter and choosing automatic shared shaping host1 config scheduler profile subscriber best effort host1 config...

Page 280: ...lass and the subscriber best effort scheduler profile host1 config qos profile subscriber data service host1 config qos profile svlan node host1 config qos profile vlan node scheduler profile subscrib...

Page 281: ...chassis a Create a QoS profile named ethernet default b Remove the QoS profile rule for creating IP nodes c Remove the IP queue for the best effort traffic class host1 config qos profile ethernet defa...

Page 282: ...parameter instance for subscriber video bandwidth with a value of 2000000 4 Create a global parameter instance for max 100Kbps voice calls with a value of 1 host1 config qos parameter max subscriber b...

Page 283: ...riber 1 with basic data service d Create a parameter instance for max subscriber video bandwidth limiting video traffic to 2 Mbps e Create a parameter instance for max 100Kbps voice calls enabling ban...

Page 284: ...affic classes for best effort video and voice issue the show traffic class command host1 show traffic class fabric traffic fabric strict class weight priority best effort 8 no video 8 no voice 8 yes 2...

Page 285: ...ured scheduler weight priority rate default 8 no none subscriber best effort 8 no none subscriber video 8 no none subscriber weight subscriber weight no none subscriber voice 8 no none shared shared s...

Page 286: ...bscriber triple play vlan FastEthernet9 0 2 subscriber triple play vlan FastEthernet9 0 3 Port attachments 4 Interface attachments 3 Not attached 0 7 To display global and interface attachments on all...

Page 287: ...0 Queues filtered under threshold 0 Queues disabled no rate period 8 Queues disabled no resources 0 Total queues 8 9 To display the shared shaper settings for the VLANs on the Fast Ethernet interface...

Page 288: ...e rate weight ethernet Eth9 0 ethernet group node EF wgt 8 svlan Eth9 0 svlan 2 svlan node EF wgt 8 vlan Eth9 0 2 vlan queue EF voice 100000 wgt 8 vlan Eth9 0 3 vlan queue EF voice 300000 wgt 8 Comple...

Page 289: ...e vlan range 1 3 exit Configure the subscriber best effort scheduler profile scheduler profile subscriber best effort shared shaping rate max subscriber bandwidth auto exit Configure the subscriber vi...

Page 290: ...r video bandwidth and max 100Kbps voice calls global parameter instances qos parameter max subscriber bandwidth 2000000 qos parameter subscriber weight 1 qos parameter max subscriber video bandwidth 2...

Page 291: ...criber weight 6 qos parameter max subscriber video bandwidth 3000000 qos parameter max 100Kbps voice calls 3 qos profile subscriber triple play exit Example QoS Parameter Configuration for Controlling...

Page 292: ...260 Example QoS Parameter Configuration for Controlling Subscriber Bandwidth JUNOSe 11 1 x Quality of Service Configuration Guide...

Page 293: ...y explicit instances of the parameter associated with the VLANs and the system creates an implicit instance of the parameter associated with the S VLAN The parameter maintains the value of the sum of...

Page 294: ...al instance interface type vlan cannot stack above controlled interface type ip In contrast a non hierarchical instance interface type cannot stack above the lowest controlled interface type vlan For...

Page 295: ...n page 263 qos parameter define Example QoS Parameter Configuration for Hierarchical Parameters The example in this section illustrates how to configure hierarchical parameters for VLANs and S VLANs F...

Page 296: ...te the parameter instance for VLANs which represent subscribers host1 config qos parameter define max sub bw hierarchical host1 config qos parameter define controlled interface type svlan host1 config...

Page 297: ...gure the VLAN queue and reference the best effort traffic class c Configure the VLAN node and reference the scheduler profile for shaping VLANs host1 config qos profile qp shape cvlan host1 config qos...

Page 298: ...1 config if interface gigabitEthernet 2 0 101 host1 config if svlan id 10 101 host1 config if qos parameter max sub bw 2048000 host1 config if qos profile qp shape cvlan host1 config if exit 3 Create...

Page 299: ...inistrator Configuration From Global Configuration mode Configure the max sub bw QoS parameter definition qos parameter define max sub bw hierarchical controlled interface type svlan controlled interf...

Page 300: ...Ethernet 2 0 101 svlan id 10 101 qos parameter max sub bw 2048000 qos profile qp shape cvlan Attach the QoS profile to the S VLAN subinterface 10 interface gigabitEthernet 2 0 svlan 10 qos profile qp...

Page 301: ...tiple downstream transmissions on a subscriber circuit In this case the router does not schedule the multicast traffic on a subscriber VLAN but limits the scheduled non multicast traffic on the subscr...

Page 302: ...GMP joins and leaves When a subscriber logs in the QoS scheduler hierarchy is created with the vlan configured for shared shaping based on the expression 1000000 ipm If no multicast traffic is being t...

Page 303: ...s parameter define bar application ip multicast hierarchical there cannot be more than one parameter defined with this property Parameter instances associated with the IP multicast bandwidth adjustmen...

Page 304: ...file vlan queue traffic class best effort host1 config qos profile vlan queue traffic class voice scheduler profile 192k host1 config qos profile vlan node scheduler profile vlan subscriber host1 conf...

Page 305: ...rface type for atm vc the system explicitly creates a parameter instance at the ATM VC with a value that is equal to the sum of the IP adjustments above this interface This parameter value is referred...

Page 306: ...roup for low latency expedited forwarding EF and add the traffic class for voice service into the traffic class group EF a Configure the EF traffic class group with strict priority scheduling b Add th...

Page 307: ...e Within a Scheduler Profile parameter instance it enables the IP multicast bandwidth adjustment application to adjust the subscriber bandwidth to account for the video traffic The QoS administrator t...

Page 308: ...interface atm 2 0 1 point to point host1 config subif atm pvc 100 0 100 aal5snap host1 config subif qos profile ipm adjusted host1 config subif ip address 1 1 1 1 255 255 255 0 IP Multicast Bandwidth...

Page 309: ...uler shaping rate burst constituent shaping mode default none none none none vc subscriber 10000000 ipm 50 bytes none simple implicit 192k none none none none 4 To display the attachments on all QoS p...

Page 310: ...parameter instances 1 Parameter instances reported 1 host1 show qos parameter references interface atm 1 0 1 parameter instance interface name value Type atm vc ATM1 0 1 ipm 200 hierarchical ip ATM1...

Page 311: ...n from which you access the router You can also save the example as a script scr file that executes the commands as though they were entered at the terminal For information about executing scr files s...

Page 312: ...r profile vc subscriber exit Attach the parameter definition to an interface interface atm 2 0 1 point to point atm pvc 100 0 100 aal5snap qos profile ipm adjusted ip address 1 1 1 1 255 255 255 Relat...

Page 313: ...figured on any E Series Broadband Services Routers Creating a parameter instance with the QoS cell mode application on a VLAN subinterface enables the scheduler to perform cell mode shaping and schedu...

Page 314: ...e and qos cell mode Commands Adjustment Performed By qos cell mode Application qos shaping mode cell Command Module Type Internal cell taxing mechanism Ethernet interfaces on ES2 4G LM and ES2 10G LM...

Page 315: ...nstream rate application and the QoS cell mode application ANCP controls QoS cell mode parameter instances at the VLAN subinterface only the protocol does not control parameter instances at the major...

Page 316: ...Shape Ethernet Traffic Using Cell Mode on page 284 Example QoS Parameter Configuration for QoS Cell Mode and Byte Adjustment for Cell Shaping on page 286 For more information about configuring schedu...

Page 317: ...config interface gigabitEthernet 6 0 2 host1 config if qos parameter cell mode 1 Related Topics Configuring a Parameter Definition to Shape Ethernet Traffic Using Cell Mode on page 284 Example QoS Pa...

Page 318: ...hich the QoS administrator applies the byte adjustment Figure 64 Byte Adjustment for VC1 and VC2 In Figure 64 on page 286 VLAN 1 and VLAN 2 map to the subscribers at VC1 and VC2 The QoS administrator...

Page 319: ...g qos parameter define controlled interface type vlan host1 config qos parameter define controlled interface type ip host1 config qos parameter define exit Configuring the QoS Shaping Mode The QoS adm...

Page 320: ...e named vc2 b Configure the shared shaping rate of 1000000 with a burst of 10 milliseconds host1 config scheduler profile vc2 host1 config scheduler profile shaping rate 1000000 burst 10 m host1 confi...

Page 321: ...QoS profile vc1 to the Gigabit Ethernet interface host1 config interface gigabitEthernet 6 0 0 host1 config if encapsulation vlan host1 config if interface gigabitEthernet 6 0 0 1 host1 config if vla...

Page 322: ...ment application qos byte adjustment controlled interface type vlan controlled interface type ip exit Create the cell mode QoS parameter definition qos parameter define cell mode application qos cell...

Page 323: ...r cell mode 1 qos profile vc1 interface gigabitEthernet 6 0 1 1 vlan id 2 qos parameter byte adjustment 2 qos parameter cell mode 1 qos profile vc2 Related Topics Cell Shaping Mode Using QoS Parameter...

Page 324: ...292 Example QoS Parameter Configuration for QoS Cell Mode and Byte Adjustment for Cell Shaping JUNOSe 11 1 x Quality of Service Configuration Guide...

Page 325: ...Broadband Services Routers The byte adjustment differs for interfaces with cell shaping mode and frame shaping mode For ADSL traffic JUNOSe software supports a byte adjustment application qos byte adj...

Page 326: ...bandwidth By default the byte adjustment is set to 0 If the overhead between the access node and CPE is 0 you do not need to configure the byte adjustment value Figure 65 on page 294 displays an exam...

Page 327: ...QoS parameter expression with the frame byte adjustment application to reduce the forwarding rate so that it matches the rate at the DSLAM To adjust rates for interfaces with frame shaping mode apply...

Page 328: ...out shaping the downstream rate using QoS parameter instances that were created dynamically by ANCP see QoS Downstream Rate Application Overview on page 301 Guidelines for Configuring Byte Adjustment...

Page 329: ...t Interfaces Overview on page 178 and Cell Shaping Mode Using QoS Parameters Overview on page 281 Configuring a Parameter Definition to Adjust Cell Shaping Rates for ADSL Traffic You can adjust shapin...

Page 330: ...7 0 host1 config if encapsulation vlan host1 config if exit host1 config interface gigabitEthernet 7 0 1 host1 config if vlan id 1 host1 config if qos parameter byteadjustment 16 host1 config if qos p...

Page 331: ...accept downstream shaping rate instantiation from ANCP host1 config qos parameter define ancp downstream application qos downstream rate 2 Configure the QoS parameter definition for the frame byte adj...

Page 332: ...nd the byte adjustment value 5 To ensure that the router handles the byte adjustment value consistently for VDSL and ADSL networks apply the QoS parameter for frame shaping mode globally host1 config...

Page 333: ...s the layer 2 control L2C protocol or the Actual Data Rate Downstream 26 130 DSL Forum vendor specific attribute VSA The values of the parameter instances track the bandwidth of the local loop that is...

Page 334: ...on Table 32 Access Loop Types and Resultant Shaping Mode Shaping Mode Access Loop Interface Type Access Loop Type Cell ATM ADSL1 Cell ATM ADSL2 Cell ATM ADSL2 Cell ATM VDSL1 Frame Ethernet VDSL2 Cell...

Page 335: ...nt the system uses the default QoS parameter instance which can be defined globally or per VLAN The advisory transmit speed configurable per VLAN is reported to the RADIUS Connect Info attribute 77 En...

Page 336: ...ode host1 config l2c host1 config l2c qos adaptive mode 5 Enable the QoS downstream rate application to use downstream rates obtained from the Actual Data Rate Downstream 26 130 DSL Forum VSA host1 co...

Page 337: ...raffic class vlan id Example QoS Parameter Configuration for QoS Downstream Rate This example illustrates how to use parameters to control the downstream rate obtained from ANCP In this example the su...

Page 338: ...N and IP queues a Configure the controlled interface type for VLAN b Configure the controlled interface type for IP host1 config qos parameter define controlled interface type vlan host1 config qos pa...

Page 339: ...e shared shaping rate by referencing the ancpVlan parameter with a burst of 10 milliseconds host1 config scheduler profile vlan1 host1 config scheduler profile shared shaping rate ancpVlan burst 10 mi...

Page 340: ...an node scheduler profile vlan1 host1 config qos profile vlan queue traffic class voice scheduler profile voice host1 config qos profile vlan queue traffic class video scheduler profile video host1 co...

Page 341: ...xt into a text editor and modify it To use the example for immediate use copy it to the local console or Telnet session from which you access the router You can also save the example as a script scr f...

Page 342: ...scheduler profiles to the vlan1 and vlan2 QoS profiles qos profile vlan1 vlan node scheduler profile vlan1 vlan queue traffic class voice scheduler profile voice vlan queue traffic class video schedu...

Page 343: ...Part 7 Monitoring and Troubleshooting QoS Monitoring QoS on E Series Routers on page 313 Troubleshooting QoS on page 357 Monitoring and Troubleshooting QoS 311...

Page 344: ...312 Monitoring and Troubleshooting QoS JUNOSe 11 1 x Quality of Service Configuration Guide...

Page 345: ...n page 322 Monitoring the Configuration of Scheduler Profiles on page 327 Monitoring Shared Shapers on page 329 Monitoring Shared Shaper Algorithm Variables on page 330 Monitoring Forwarding and Drop...

Page 346: ...t a QoS profile references the traffic class host1 show traffic class brief traffic class best effort referenced 17 times in qos profiles To display a list of QoS profiles and traffic class groups tha...

Page 347: ...display the number of times each traffic class group is referenced by a profile host1 show traffic class group brief traffic class group g2 referenced 1 time in qos profiles traffic class group g3 ref...

Page 348: ...holds egress slot 9 queue profile video queue profile video 2000 queues total egress exceeded conformed committed committed region memory length length length memory 0 0MB 4MB 34944 69888 139648 27929...

Page 349: ...iption which is based on the assumption that when a large number of queues is configured only a fraction of the queues is active at a given time While more queues become active memory fills and spills...

Page 350: ...20 000 maximum When in regions 0 4 these queues would normally get more memory than the 20 000 byte maximum requested In this case the queue is limited to the maximum and any excess memory is redistri...

Page 351: ...mount of conformed traffic that can be queued at this egress memory usage conformed length Amount of committed traffic that can be queued at this egress memory usage committed length Amount of committ...

Page 352: ...n the exceeded length conformed length A queue length less than the conformed length which is less than the committed length exceeded length Percentage of the total queue that can be occupied before c...

Page 353: ...000 80 0 none none 0 none none To display information about drop profiles in condensed format host1 show drop profile brief To display the QoS profiles that reference the drop profile host1 show drop...

Page 354: ...t 6000000 wgt 8 vlan Eth9 0 3 vlan node wgt 6 vlan Eth9 0 3 vlan queue video 3000000 wgt 8 vlan Eth9 0 3 vlan queue best effort 8000000 wgt 8 Scheduler hierarchy for traffic class group EF assured sha...

Page 355: ...rate rate weight vlan Eth9 0 2 vlan queue EF voice 100000 wgt 8 To display the scheduler hierarchy of a specific traffic class group or the default traffic class group host1 show qos scheduler hierar...

Page 356: ...the scheduler nodes and queues and the burst associated with shaping rates host1 show qos scheduler hierarchy interface fastEthernet 9 0 full include subscriber best effort vlan Eth9 0 1 subscriber be...

Page 357: ...set vlanset1 set queue EF EF wgt 8 Scheduler hierarchy for traffic class group AF assured shared rate shaping shaping or interface resource rate rate weight ethernet Eth1 0 0 ethernet port wgt 8 supe...

Page 358: ...t wgt 8 Scheduler hierarchy for traffic class group EF assured shared rate shaping shaping or interface resource rate rate weight ethernet Eth1 0 0 ethernet port wgt 8 ethernet Eth1 0 0 ethernet group...

Page 359: ...rate in bits per second shared shaping rate Configured assured rate in bits per second or configured weight assured rate or weight Related Topics Configuring a Scheduler Hierarchy on page 47 Configuri...

Page 360: ...nced by QoS profiles atm default serial default ethernet default server default scheduler profile wf100 Referenced by QoS profiles ipV610 scheduler profile spSV25 Referenced by QoS profiles qospro25 M...

Page 361: ...ce 100000 atm vc node AF A atm vc queue AF video 200000 atm vc ATM11 0 11 A atm vc node 500000 rate 500000 atm vc queue best effort atm vc node EF A atm vc queue EF voice 100000 atm vc node AF A atm v...

Page 362: ...failover mode due to lack of resources Total number of shared shapers that are disabled in failover mode due to lack of resources Indication of whether compound shared shapers are supported determine...

Page 363: ...ring Forwarding and Drop Events on the Egress Queue Purpose Display information about forwarding and drop event counts on the egress queue Action To display events for a specific interface host1 show...

Page 364: ...bitEthernet 1 0 event exceeding conformed host1 show egress queue events gigabitEthernet 1 0 event exceeding exceeded host1 show egress queue events gigabitEthernet 1 0 event exceeding forwarded Meani...

Page 365: ...node that has been shaped to 8 Mbps over an S VLAN node which is not shaped then The VLAN queue that is shared shaped to 5 Mbps has a maximum rate of 5 Mbps The VLAN node that is shaped to 8 Mbps has...

Page 366: ...o resources 0 Total queues 7 To display rate statistics based on an S VLAN host1 show egress queue rates interface gigabitEthernet 11 0 svlan 0 traffic forwarded aggregate minimum interface class rate...

Page 367: ...how egress queue rates tunnel server 6 0 To display rate statistics for queues bound to the specified interface host1 show egress queue rates interface gigabitEthernet 11 0 svlan 0 explicit To display...

Page 368: ...rate Drop rate for red packets exceeded drop rate Minimum rate for queue minimum rate Maximum rate for queue maximum rate Number of queues reported Queues reported Number of queues not reported becau...

Page 369: ...formation about the fabric queue on the egress slot host1 show fabric queue egress slot 0 Meaning Table 45 on page 337 lists the show fabric queue command output fields Table 45 show fabric queue Outp...

Page 370: ...references Meaning Table 46 on page 338 lists the show statistics profile command output fields Table 46 show statistics profile Output Fields Field Description Field Name Name of the statistics prof...

Page 371: ...tm vc queue tc2 default default qp2 ATM11 0 1 g2 atm vp node default default qp2 ATM11 0 1 g2 atm vc queue tc3 default default qp2 ATM11 0 1 g2 atm vc queue tc4 default default To display the interfac...

Page 372: ...rface hierarchy Monitoring the Configuration of QoS Port Type Profiles Purpose Display information about QoS port type profiles Action To display information about all interface types host1 show qos p...

Page 373: ...ng ip queue voice voice default default default best effort ethernet group bestEffortGroup best effort ip node default best effort ip queue best effort best effort default default default assured forw...

Page 374: ...st1 show qos profile references interface gigabitEthernet 6 0 explicit Meaning Table 48 on page 342 lists the show qos profile command output fields Table 48 show qos profile Output Fields Field Descr...

Page 375: ...tion To display the QoS configuration on an ATM interface host1 show interfaces atm 2 0 ATM Interface 2 0 is up line protocol is disabled AAL5 operational status up time since last status change 01 08...

Page 376: ...rmines the operational shaping mode based on the values configured for the qos shaping mode command or the qos port mode command For more information see Per Packet Queuing on the SAR Scheduler Overvi...

Page 377: ...configuration for an IP interface host1 show ip interface atm 2 0 1 ATM2 0 1 line protocol Atm1483 is up ip is up Attached QoS profile test ATM2 0 queue 0 traffic class best effort bound to ip ATM2 0...

Page 378: ...eded Number of committed packets and bytes dropped by WRED Displays a cumulative number of committed conformed and exceeded packets dropped by WRED for ES2 10G ADV LMs Dropped by WRED committed Number...

Page 379: ...s sec 0 packets sec 5 minute output rate 0 bits sec 0 packets sec In Bytes 0 Unicast 0 Multicast 0 Broadcast 0 Errors 0 Discards 0 Mac Errors 0 Alignment 0 CRC 0 Too Longs 0 Symbol Errors 0 Out Bytes...

Page 380: ...bled frame Default shaping mode for shaping and policing rates Reports QoS statistics such as transmitted bytes and dropped bytes based on bytes within frames cell Shaping mode for shaping and policin...

Page 381: ...g Member interface FastEthernet11 3 is Down LACP disabled state waiting Member interface FastEthernet11 4 is Up LACP disabled state collecting distributing Meaning Table 52 on page 349 lists the relat...

Page 382: ...lag test1 4 Meaning Table 53 on page 350 lists the show qos interface set command output fields Table 53 show qos interface set Output Fields Field Description Field Name Name of the interface set in...

Page 383: ...set Meaning Table 54 on page 351 lists the show qos interface superset command output fields Table 54 show qos interface superset Output Fields Field Description Field Name Name of the interface supe...

Page 384: ...S Downstream Rate on page 303 show aaa qos downstream rate Monitoring QoS Parameter Instances Purpose Display the QoS parameter instances for QoS clients Action To display information about the QoS pa...

Page 385: ...o display information in expanded format including Service Manager references host1 show qos parameter video references full service parameter manager interface name value source refs persistence Giga...

Page 386: ...this parameter instance created through Service Manager service manager refs Status of the persistence of a parameter instance in the system persistent Parameter instance is stored in NVS and is rest...

Page 387: ...e 57 on page 355 lists the show qos parameter define command output fields Table 57 show qos parameter define Output Fields Field Description Field Name Name of the parameter definition parameter name...

Page 388: ...356 Monitoring QoS Parameter Definitions JUNOSe 11 1 x Quality of Service Configuration Guide...

Page 389: ...The router displays a CLI message whenever queues are put into failover mode and when they recover from failover mode NOTE When an extremely large number of statistics is being gathered over a short p...

Page 390: ...358 Troubleshooting Memory and Processor Use for Egress Queue Rate Statistics and Events JUNOSe 11 1 x Quality of Service Configuration Guide...

Page 391: ...Part 8 Index Index on page 361 Index 359...

Page 392: ...360 Index JUNOSe 11 1 x Quality of Service Configuration Guide...

Page 393: ...60 166 default integrated mode 166 low cdv mode 166 low latency mode 166 best effort 5 13 best effort queue 5 best effort scheduler node 5 buffer weight command 23 burst size setting in a shaping rate...

Page 394: ...e threshold 37 forwarding rate threshold command 40 frame byte adjustment application configuring 299 frame forwarding ASIC FFA 100 127 G Gigabit Ethernet monitoring 347 group command 132 238 group no...

Page 395: ...281 QoS commands qos mode port 163 qos parameter 242 qos parameter define 238 qos port type profile 135 191 qos profile 39 40 53 66 132 135 152 191 192 199 qos shaping mode 161 174 179 qos shared shap...

Page 396: ...ping rate 63 shaping rate for nonstrict queues 63 tuning latency on strict priority queues 66 zero weight queues 63 S S VLAN interface attachments 135 SAR segmentation and reassembly scheduler 159 161...

Page 397: ...rt type profile 340 show qos profile 341 show qos shared shaper control command 330 show queue profile 319 show scheduler profile 327 show statistics profile 338 show traffic class 314 show traffic cl...

Page 398: ...oS 6 weighted random early detection See WRED WRED weighted random early detection 7 25 configuration examples 33 configuring 31 different drop behavior for each queue 33 different treatment of colore...

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