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QoS components

19

DiffServ Concepts

DiffServ is described in IETF RFCs 2474 and 2475. This architecture
is flexible and allows for either end-to-end QoS or intradomain QoS by
implementing complex classification and mapping functions at the network
boundary or access points. Within a DiffServ domain, the packet treatment
is regulated by this classification and mapping.

The DiffServ basic elements are implemented within the network and include

•

packet classification functions

•

a small set of per-hop forwarding behaviors

•

traffic metering and marking

Traffic is classified as it enters the DS network, and is then assigned the
appropriate PHB based on that classification. Within the IP packet, the 6
bits in the DSCP are marked to identify how the packet is treated at each
subsequent network node.

DiffServ assumes the existence of a Service Level Agreement (SLA)
between DS domains that share a border. The SLA defines the profile for
the aggregate traffic flowing from one network to the other, based on policy
criteria. In a given traffic direction, the traffic is expected to be metered at
the ingress point of the downstream network.

As the traffic moves within the DiffServ network, policies ensure that traffic,
marked by the different DSCPs, is treated according to that marking.

QoS components

The Nortel Ethernet Routing Switch 4500 Series supports the following
Nortel Networks QoS classes:

•

Critical and Network classes have the highest priority over all other
traffic.

•

Premium class is an end-to-end service functioning similarly to a
virtual leased line. Traffic in this service class is normally guaranteed
an agreed-upon peak bandwidth. Traffic requiring this service must
be shaped at the network boundary in order to undergo a negligible
delay and delay variance. This service class is suitable for real-time
applications, such as video and voice over IP. The recommended PHB
for this service is the Expedited Forwarding (EF) PHB.

•

Platinum, Gold, Silver, and Bronze classes use the Assured Forwarding
(AF) PHB. These classes are used for real-time, delay-tolerant traffic
and non-real-time, mission-critical traffic.

•

Standard class is the best-effort IP service with an additional, optional
use of traffic classification that is used at the network boundary to

Nortel Ethernet Routing Switch 4500 Series

Configuration — Quality of Service

NN47205-504 (322816-

B

)

03.01

Standard

5.1

23 November 2007

Copyright © 2007, Nortel Networks

.

Summary of Contents for 4526FX

Page 1: ...Nortel Ethernet Routing Switch 4500 Series Configuration Quality of Service NN47205 504 322816 B ...

Page 2: ...ese terms and conditions return the Software unused and in the original shipping container within 30 days of purchase to obtain a credit for the full purchase price Software is owned or licensed by Nortel Networks its parent or one of its subsidiaries or affiliates and is copyrighted and licensed not sold Software consists of machine readable instructions its components data audio visual content s...

Page 3: ...per and or supplier is an intended beneficiary of this Section Some jurisdictions do not allow these limitations or exclusions and in such event they may not apply 4 General a If Customer is the United States Government the following paragraph shall apply All Nortel Networks Software available under this License Agreement is commercial computer software and commercial computer software documentati...

Page 4: ......

Page 5: ...ssifier elements 23 Layer 2 classifier elements 24 System classifier elements 24 Classifiers and classifier blocks 24 Specifying actions 25 Specifying interface action extensions 28 Specifying meters 28 Trusted untrusted and unrestricted interfaces 29 Specifying policies 32 Packet flow using QoS 34 Queue sets 35 Modifying CoS to queue priorities 35 QoS configuration guidelines 36 Chapter 2 Configu...

Page 6: ... classifier classifier block or an entire filter set 56 Configuring QoS Elements Classifiers and Classifier Blocks 56 qos ip element command 56 no qos ip element command 57 qos l2 element command 58 no qos l2 element command 59 qos classifier command 59 no qos classifier command 60 qos classifier block command 60 no qos classifier block command 61 Configuring QoS system element 62 qos system eleme...

Page 7: ...802 1p priority queue assignment 95 Configuring 802 1p priority mapping 96 Configuring DSCP mapping 98 Displaying QoS meter capability 100 Displaying QoS shaper capability 101 Configuring IP classifier elements 102 Creating an IP classifier element 102 Deleting an IP classifier element configuration 104 Configuring Layer 2 classifier elements 104 Creating a Layer 2 classifier element configuration...

Page 8: ...anager JDM 135 Managing interface groups 135 Displaying interface queues 135 Displaying interface groups 136 Assigning ports to an interface group 137 Deleting ports from an interface group 138 Adding interface groups 139 Deleting interface groups 139 Displaying an interface ID 140 Displaying priority queue assignments 142 Displaying priority mapping 143 Displaying DSCP mappings 144 Displaying Met...

Page 9: ...nsions 169 Deleting Interface action extensions 169 Displaying QoS meters 170 Adding QoS meters 171 Deleting QoS meters 171 Displaying QoS Interface Shapers 172 Adding Interface Shapers 173 Deleting an Interface Shaper 174 Displaying QoS policies 174 Adding QoS policies 177 Deleting QoS policies 178 QoS Policy Stats 179 Configuring Nortel SNA solution 179 Inserting a classifier 180 Deleting a clas...

Page 10: ...10 Contents Nortel Ethernet Routing Switch 4500 Series Configuration Quality of Service NN47205 504 322816 B 03 01 Standard 5 1 23 November 2007 Copyright 2007 Nortel Networks ...

Page 11: ...NN47205 504 for release 5 1 Features Other changes Features For information about changes that are feature related see The Nortel SNA solution page 22 Other changes No other changes Nortel Ethernet Routing Switch 4500 Series Configuration Quality of Service NN47205 504 322816 B 03 01 Standard 5 1 23 November 2007 Copyright 2007 Nortel Networks ...

Page 12: ...12 New in this release Nortel Ethernet Routing Switch 4500 Series Configuration Quality of Service NN47205 504 322816 B 03 01 Standard 5 1 23 November 2007 Copyright 2007 Nortel Networks ...

Page 13: ...ndant power slot for DC DC converter installation 4550T 48 10 100BaseTX RJ 45 ports plus 2 10 100 1000 SFP combo ports Redundant power slot for DC DC converter installation 4550T PWR 48 10 100BaseTX RJ 45 ports with Power over Ethernet plus 2 10 100 1000 SFP combo ports Integrated redundant power connector for RPS 15 cable connection 4548GT 48 10 100 1000BaseTX RJ 45 ports and 4 shared SFP ports R...

Page 14: ...n Instructions to install a switch in the Nortel Ethernet Routing Switch 4500 Series This guide also provides an overview of hardware important to the installation configuration and maintenance of the switch NN47205 300 Nortel Ethernet Routing Switch 4500 Series Release Notes Software Release 5 0 An overview of new features fixes and limitations of the 4500 Series switches Also included are supple...

Page 15: ...nortel com support Use the following procedure to access documents or software on the Technical Support web site If it is not already selected click the Browse product support tab From the list provided in the product family box select Nortel Ethernet Routing Switch From the product list select the desired 4500 Series Switch From the content list select Documentation or Software Click Go You can v...

Page 16: ...oduct An Express Routing Code ERC is available for many Nortel products When used an ERC allows a technical assistance call to be routed to a technical support personell who specialize in that service or product The ERC for a particular product or service is available online The main Nortel support portal is available at http www nortel com support Nortel Ethernet Routing Switch 4500 Series Config...

Page 17: ...e a certain amount of bandwidth to work correctly using QoS you can provide that bandwidth when necessary Also you can place a high priority on applications that are sensitive to timing or that cannot tolerate delay by assigning that traffic to a high priority queue Nortel Networks uses Differentiated Services DiffServ to provide QoS functionality A DiffServ architecture enables service discrimina...

Page 18: ... using the best effort model for data delivery Preferential treatment prioritization can apply applications that require high performance and reliable service such as voice and video over IP To differentiate between traffic flows the DiffServ DS field as defined in RFCs 2474 and 2475 is marked The DS field in the IP header is an octet and the DS architecture uses the first six bits called the DS c...

Page 19: ...f the downstream network As the traffic moves within the DiffServ network policies ensure that traffic marked by the different DSCPs is treated according to that marking QoS components The Nortel Ethernet Routing Switch 4500 Series supports the following Nortel Networks QoS classes Critical and Network classes have the highest priority over all other traffic Premium class is an end to end service ...

Page 20: ...d Silver and Bronze Communications requiring interaction with additional minimal delay such as low cost VoIP Single human communication with no interaction such as web site streaming video Transaction processing such as Telnet web browsing and e mail FTP SNMP Assured Forwarding AF Non real time non mission critical Standard Bulk transfer such as large FTP transfers after hours tape backup Best eff...

Page 21: ...er associated with another interface group or the port is removed from all interface groups Ports that are not associated with any interface group are disabled for QoS they remain disabled across reboots until that port is assigned to an interface group or the switch is reset to factory defaults when it is reassigned to allQosPolicyIfcs ATTENTION All ports must be removed from an interface group b...

Page 22: ...tivirus applications or software patches are installed before users are granted network access The Nortel SNA solution provides a policy based clientless approach to corporate network access The Nortel SNA solution provides both authentication and enforcement For more information about Nortel SNA see Nortel Security Configuration manual NN47205 501_CFSEC Rules Packet classifiers identify packets a...

Page 23: ...ements The Nortel Ethernet Routing Switch 4500 Series classifies packets based on the following parameters in the IP header IPv4 IPv6 address type IPv6 flow identifier IPv4 IPv6 source address mask IPv4 IPv6 destination address mask IPv4 protocol type IPv6 next header IPv4 IPv6 DSCP value IPv4 IPv6 Layer 4 source port number with TCP UDP range of IPv4 IPv6 Layer 4 destination port number with TCP ...

Page 24: ...dress IP protocol field and VLAN ID for flow classification Fully customized classifiers can be created to match non IP based traffic as well as to identify IP based traffic using non typical fields in Layers 2 3 4 and beyond The Nortel Ethernet Routing Switch 4500 Series Content Aware Processor CAE lookup engine supports selection of 16 bytes within the first 128 bytes of the packet Classifiers a...

Page 25: ...ach classifier or classifier block is associated with actions that are executed when the packet matches the filter criteria in the group The filter criteria and the associated actions metering criteria and interface groups are referenced by a policy which dictates the overall traffic treatment refer to Flowchart of QoS Actions page 26 for an illustration of the traffic treatment Classifier element...

Page 26: ... summary of the allowable actions for different matching criteria Summary of Allowable Actions Actions In Profile Out Of Profile Drop transmit X X Update DSCP X X Nortel Ethernet Routing Switch 4500 Series Configuration Quality of Service NN47205 504 322816 B 03 01 Standard 5 1 23 November 2007 Copyright 2007 Nortel Networks ...

Page 27: ...d with the specific interface specifies only a value updating the DSCP value while another policy associated with that same interface specifies only a value for updating the 802 1p user priority value both of these actions occur If conflicts among actions are detected for example if two policies on the specified interface request that the DSCP be updated but specify different values the value from...

Page 28: ...st interface Same port for both unicast and non unicast packets redirection should be used Specifying meters QoS metering which operates at ingress provides different levels of service to data streams through user configurable parameters A meter is used to measure the traffic stream against a traffic profile which you create Thus creating meters yields In Profile and Out of Profile traffic Differe...

Page 29: ...iod of time Duration without being dropped ATTENTION The range for the committed rate is 64 to 32000000 Kb s Meter definitions where the committed burst size is too small based on the requested committed rate are rejected The committed burst size can be only one of the following discrete values in bytes 4096 4K 8192 8K 16384 16K 32768 32K 65536 64K 131072 128K 262144 256K 524288 512K 1048576 1024K...

Page 30: ...g occurs by default only for standardized DSCP values for example EF AFXX and any proprietary Nortel values The DSCP values that are remapped are associated with a non zero 802 1p user priority value in the DSCP to COS Mapping Table Untrusted interfaces IPv4 traffic received on untrusted interfaces is re marked at the layer 3 level that is the DSCP value is updated The new DSCP value is determined...

Page 31: ...layer 2 non IP traffic is to pass the traffic through all interfaces classes with the QoS values for 802 1p and drop precedence unchanged The Nortel Ethernet Routing Switch 4500 Series does not trust the DSCP of IPv4 traffic received from an untrusted port however it does trust the DSCP of IPv4 traffic received from a trusted port L2 non IP traffic received on either a trusted port or an untrusted...

Page 32: ...er Network service class CS7 CS6 2 Weighted Network EF CS5 1 Priority Premium AF1x CS1 3 Weighted Bronze AF4x AF3x AF2x CS4 CS3 CS2 DF CSO all unspecified DSCPs 4 Weighted Standard Specifying policies ATTENTION Configure interface groups role combinations classification criteria actions and meters before attempting to reference that data in a policy When network traffic attributes match those spec...

Page 33: ...ffic that matches the traffic profile of the policy The policies tie together Actions Meters Classifier elements or classifiers or classifier blocks Interface groups The policies by connecting these user defined configurations control the traffic on the switch Ports can be assigned to interface groups that are linked to policies Port based policies eliminate the need to create an interface group f...

Page 34: ...ters These parameters include VLAN IDs IP source and subnet address IP protocol and many others The classifiers classifier blocks are associated with policies and policies are organized into a hierarchy The policy with the highest precedence is evaluated first The classifier elements classifiers and classifier blocks are associated with interface groups in that packets from a specific port will ha...

Page 35: ...ts associated with the queues Queue service order when multiple service disciplines are in use the service order indicates service precedence assigned to individual queues strict priority or clusters of queues WRR ATTENTION Egress queuing and buffering characteristics and the CoS to queue priorities are the same across all QoS ports The Nortel Ethernet Routing Switch 4500 Series has factory defaul...

Page 36: ...r each mask precedence for each ASIC Up to 8 precedence masks for each port Up to 16 range checkers for each ASIC Model ASIC Device 1 ASIC Device 2 4526FX Port 1 26 4550T Port 1 24 Port 25 50 4550T PWR Port 1 24 Port 25 48 4548GT Port 1 24 Port 25 48 4548GT PWR Port 1 24 Port 25 48 4526T Port 1 26 4526T PWR Port 1 26 4524GT Port 1 24 4526GTX Port 1 26 4526GTX PWR Port 1 26 To view QoS resources us...

Page 37: ... with DSCP EF priority such as with VoIP to the highest priority queue Example qos if group name Trust_VoIP class unrestricted no qos if assign port 2 50 qos if assign port 1 name Trust_VoIP qos ip element 1 ds field 46 qos classifier 1 set id 1 name Trust_VoIP element type ip element id 1 qos policy 1 name Trust_VoIP if group Trust_VoIP clfr type classifier clfr id 1 in profile action 7 precedenc...

Page 38: ...r 1 An Introduction to Policy Enabled Networks Nortel Ethernet Routing Switch 4500 Series Configuration Quality of Service NN47205 504 322816 B 03 01 Standard 5 1 23 November 2007 Copyright 2007 Nortel Networks ...

Page 39: ...splaying QoS Parameters QoS parameters are displayed using the show qos command The show qos command displays the current QoS policy configuration The syntax for the show qos command is show qos acl assign 1 65535 if group if assign port portlist queue set queue set assignment ingressmap egressmap ds 0 63 status ip element user system all 1 65535 Nortel Ethernet Routing Switch 4500 Series Configur...

Page 40: ...s command show qos parameters Parameter Description acl assign 1 65535 Displays the specified access list assignment entry if group Displays the interface groups if assign port portlist Displays the list of interface assignments queue set Displays the queue set configuration queue set assignment Displays the association between the 802 1p priority to that of a specific queue ingressmap Displays th...

Page 41: ...tem displays only system entries all displays user created default and system entries 1 65535 displays a particular entry Default is all system element user system all 1 65535 Displays the system classifier element entries classifier user system all 1 65535 Displays the classifier set entries user displays only user created and default entries system displays only system entries all displays user ...

Page 42: ...displays only user created and default entries system displays only system entries all displays user created default and system entries 1 65535 displays a particular entry Default is all if action extension user system all 1 65535 Displays the interface action entries user displays only user created and default entries system displays only system entries all displays user created default and syste...

Page 43: ...d and default entries system displays only system entries all displays user created default and system entries 1 65535 displays a particular entry Default is all statistics 1 65535 Displays the policy and filter statistics values nsna classifier interface name Displays the nsna entries classifier displays QoS NSNA classifier entries interface displays QoS NSNA interface entries name specify the la...

Page 44: ...cl assign command The qos acl assign command is used to assign ports to an access list The syntax for the qos acl assign command is qos acl assign 1 55000 enable port port_list acl type ip l2 name name qos acl assign parameters page 44 outlines the parameters for this command qos acl assign parameters Parameter Description 1 55000 A unique identifier for the access list assignment enable Enable th...

Page 45: ...st The syntax for this command is qos ip acl name name addr type addrtype src ip source_ip dst ip destination_ip ds field dscp protocol protocol_type next_header header src port min port src port max port dst port min port dst port max port session id sessionid drop action enable disable update dscp 0 63 update 1p 0 7 set drop prec high drop low drop block block_name qos ip acl parameters page 45 ...

Page 46: ... for this access list Enable specifies to drop packets and disable specifies to not drop packets update dscp 0 63 The DSCP value to update for this access list update 1p 0 7 The 802 1p value to update for this access list set drop prec high drop low drop The drop precedence to configure for this access list block block_name The block name to associate with the access list This command is executed ...

Page 47: ...source_ mac_address_mask The source MAC address mask to use for this access list dst mac destination_ mac_address The destination MAC address to use for this access list dst mac mask destination_mac_a ddress_mask The destination MAC address mask to use for this access list vlan min vid_min vlan max vid_max The minimum and maximum VLANs to use with this access list Both values must be specified vla...

Page 48: ...e IP access list to remove This value is between 1 and 55000 This command is executed in the Global Configuration command mode Configuring the CoS to Queue Assignments CoS to queue assignments can be queried and modified using the following CLI commands qos queue set assignment command The qos queue set assignment command associates the 802 1p priority values with a specific queue within a specifi...

Page 49: ... command adds ports to a defined interface group The syntax for the qos if assign command is qos if assign port portlist name WORD qos if assign parameters page 49 describes the parameters for this command qos if assign parameters Parameter Description port portlist Enter the ports to add to interface group name WORD Specify name of interface group The qos if assign command is executed in the Inte...

Page 50: ...tter a z or A Z class field QoS trusted ports QoS untrusted ports QoS unrestricted ports interfaces QoS interfaces class trusted untrusted unrestricted Defines a new interface group and specifies the class of traffic received on interfaces associated with this interface group trusted untrusted unrestricted The qos if group command is executed in the Global Configuration command mode no qos if grou...

Page 51: ...ame WORD ds 0 63 1p 0 7 dp low drop high drop qos egressmap parameters page 51 outlines the parameters for this command qos egressmap parameters Parameter Description name WORD Specify the label for the egress mapping ds 0 63 Enter the DSCP value used as a lookup key for 802 1p priority and drop precedence at egress when appropriate range is between 0 and 63 1p 0 7 Enter the 802 1p priority value ...

Page 52: ...utlines the parameters for this command qos ingressmap parameters Parameter Description name WORD Specify the label for the ingress mapping 1p 0 7 Enter the 802 1p priority used as lookup key for DSCP assignment at ingress range is between 0 and 7 ds 0 63 Enter the DSCP value associated with the target 802 1p priority range is between 0 and 63 The qos ingressmap command is executed in the Global C...

Page 53: ...o configure QoS for Nortel SNA filters use the following command from the Global configuration mode qos nsna This command includes the following parameters Parameter Description classifier name addr type ipv4 ipv6 block drop action ds field dst ip dst mac dst port min ethertype eval order flow id next header priority protocol set drop prec src ip src mac src port min update 1p update dscp vlan min...

Page 54: ...the minimum value for the VLAN ID in a packet vlan tag specifies the type of VLAN tagging in a packet set name commited rate drop nm action drop out action max burst rate max burst duration update dscp out action Creates the QoS Nortel SNA set Optional parameters commited rate specifies the commited rate in Kbps drop nm action specifies the action to take when the packet is non matching This actio...

Page 55: ... 22 25 32 ethertype 0x0800 drop action disable block remedial eval order 70 qos nsna classifier name ALPHAYELLOW dst ip 10 16 50 30 32 ethertype 0x0800 drop action disable block remedial eval order 71 qos nsna classifier name ALPHAYELLOW dst ip 10 81 21 21 32 ethertype 0x0800 drop action disable block remedial eval order 72 The following commands are an example of classifiers configured to allow v...

Page 56: ...east one remaining Configuring QoS Elements Classifiers and Classifier Blocks Elements classifiers and classifier blocks can be configured using the CLI This section covers the CLI following commands qos ip element command The qos ip element command adds IP classifier element entries The syntax for the qos ip element command is qos ip element cid addr type addrtype src ip src ip info dst ip dst ip...

Page 57: ...min port dst port max port Specify the L4 destination port minimum value and maximum value filter criteria next header Specify the IPv6 next header classifier criteria range is 0 to 255 session id sessionid Specify the IPv6 flow identifier The qos ip element command is executed in the Global Configuration command mode no qos ip element command The no qos ip element command deletes IP classifier el...

Page 58: ...pecify the source MAC element criteria Enter in the format H H H src mac mask src mac mask Specify the source MAC mask element criteria Enter in the format H H H dst mac dst mac Specify the destination MAC element criteria Enter in the format H H H dst mac mask dst mac mask Specify the destination MAC mask element criteria Enter in the format H H H vlan min vid min Specify the VLAN ID minimum valu...

Page 59: ...qos l2 element command is no qos l2 element 1 55000 Substitute 1 55000 above with the ID of the element to be deleted The no qos l2 element command is executed in the Global Configuration command mode qos classifier command The qos classifier command facilitates the linking of individual IP and L2 classifier elements into a single classifier The syntax for the qos classifier command is qos classif...

Page 60: ...e deleted no qos classifier command The no qos classifier command deletes classifier entries The syntax for the no qos classifier command is no qos classifier 1 55000 Substitute 1 55000 above with the classifier ID of the classifier to be deleted The no qos classifier command is executed in the Global Configuration command mode ATTENTION Each classifier can have only a single IP classifier element...

Page 61: ...be linked to the classifier block maximum is 16 alphanumeric characters in profile action 1 55000 Specify the in profile action to be linked to the filter block range is 1 to 55000 in profile action name WORD Specify the in profile action name to be linked to the classifier block maximum is 16 alphanumeric characters meter 1 55000 Specify the meter to be linked to the classifier block range is 1 t...

Page 62: ... system element parameters page 62 outlines the parameters for this command qos system element parameters Parameter Description 1 55000 System classifier element entry id range is 1 to 55000 known mcast Filter on known multicast destination address unknown mcast Filter on unknown multicast destination address unknown ucast Filter on unknown unicast destination address pattern ip version ipv4 ipv6 ...

Page 63: ...ment command is executed in the Global Configuration command mode Configuring QoS Actions The configuration of QoS actions directs the Nortel Ethernet Routing Switch 4500 Series to take specific action on each packet This section covers the following CLI commands qos action command The qos action command creates or updates a QoS action The syntax for the qos action command is qos action 10 55000 n...

Page 64: ...ATTENTION If you omit this parameter the default value applies update dscp 0 63 Specifies whether DSCP value are updated or left unchanged unchanged equals ignore Enter the 6 bit DSCP value range is 0 to 63 Default is ignore update 1p 0 7 Specifies whether 802 1p priority value are updated or left unchanged unchanged equals ignore ieee1p enter the value you want range is 0 to 7 use egress uses the...

Page 65: ...u can notice unequal drop rates for two similar packet flows which use similar sized fixed length packets in case QOS congestion testing are performed on ERS 4500 no qos action command The no qos action command deletes QoS action entries The syntax for the no qos action command is no qos action 10 55000 Substitute 10 55000 above with the ID of the QoS action to be deleted The no qos action command...

Page 66: ...characters egress ucast port egress non ucast port Specify redirection of unicast non unicast to specified port session id Specify the session ID The qos if action extension command is executed in the Global Configuration command mode ATTENTION An interface extension that is referenced in an action entry cannot be deleted ATTENTION All traffic both unicast and non unicast should be redirected to t...

Page 67: ...s Parameter Description 1 55000 Enter an integer to specify the QoS meter range is 1 to 55000 name WORD Specify name for meter maximum is 16 alphanumeric characters committed rate 64 32000000 Specifies rate that traffic must not exceed for extended periods to be considered in profile Enter the rate in Kb s for in profile traffic in increments of 1000 Kbits sec range is 64 to 32000000 Kbits sec bur...

Page 68: ...ssion id 1 4294967295 Specify the session ID The qos meter command is executed in the Global Configuration command mode ATTENTION In case committed rate is not a multiple of 64 this value is rounded down to the highest multiple of 64 smaller than committed rate For example a committed rate of 1000 kbps is automatically rounded down to 960 kbps no qos meter command The no qos meter command deletes ...

Page 69: ...tteed burst size in Kilobytes The value range is 4 8 16 32 64 128 256 512 1024 2048 4096 8192 16384 max burst rate 64 4294967295 Maximum burst rate in kilobits sec range is 64 4294967295Kbits sec max burst duration 1 4294967295 Maximum burst duration in milliseconds range is 1 to 4294967295 ms The qos if shaper command is executed in the Interface Configuration mode no qos if shaper command The no...

Page 70: ...WORD Enter the name for the policy maximum is 16 alphanumeric characters port port_list The ports to which to directly apply this policy if group WORD Enter the interface group name to which this policy applies maximum number of characters is 32 US ASCII The group name must begin with a letter within the range a z or A Z clfr type classifier block Specify the classifier type classifier or block cl...

Page 71: ...ividual statistics on individual classifiers aggregate aggregate statistics session id 1 4294967295 Specify the session ID The qos policy command is executed in the Global Configuration command mode ATTENTION All components associated with a policy including the interface group element classifier classifier block action and meter must be defined before referencing those components in a policy no q...

Page 72: ...orage Delaying NVRAM access can be used to minimize file input and output This can aid QoS agent efficiency if a large amount of QoS data is being configured The syntax for the qos agent nvram delay command is qos agent nvram delay 0 604800 Substitute 0 604800 above with the maximum amount of time in seconds before non volatile QoS configuration data is written to non volatile storage The default ...

Page 73: ...s the system to its QoS factory default values The syntax for the default qos agent command is default qos agent The default qos agent command is executed in the Global Configuration command mode Nortel Ethernet Routing Switch 4500 Series Configuration Quality of Service NN47205 504 322816 B 03 01 Standard 5 1 23 November 2007 Copyright 2007 Nortel Networks ...

Page 74: ...2 Configuring Quality of Service QoS with the CLI Nortel Ethernet Routing Switch 4500 Series Configuration Quality of Service NN47205 504 322816 B 03 01 Standard 5 1 23 November 2007 Copyright 2007 Nortel Networks ...

Page 75: ...dividual entries in the appropriate currently defined QoS tables DiffServ Multi Field Classifier Table Layer 2 Multi Field Classifier Table Base Action Table Meter Table Policy Table and so on are created based on the user data in the background The QoS Wizard application provides a means for all users regardless of experience to configure effective QoS policies These wizards can be accessed by se...

Page 76: ... QoS Configuration Wizard The QoS Configuration Wizard provides a way to quickly configure quality of service policies on a switch This wizard can be used to configure quality of service based on VLANs IP applications such as HTTP and SMTP user defined flows and Layer 2 to 4 access lists To use the wizard follow this procedure Step Action 1 Open the QoS Configuration Wizard by selecting Applicatio...

Page 77: ... name in the Name field The screen for a new policy is illustrated in QoS Configuration Wizard Screen 3 page 77 QoS Configuration Wizard Screen 3 5 The next step in the configuration wizard is dependent on the selection made when prompted for a traffic type Refer to the subsections appropriate to the traffic type selected a VLAN Enter the number of a valid VLAN to which this policy applies This sc...

Page 78: ...cation page 78 QoS Configuration Wizard Screen 4 IP Application c User Defined Flows When configuring user defined flow policies it is a two step process The first step illustrated in QoS Configuration Wizard Screen 4A User Defined Flows page 79 is to define the type of filter to apply either IP or Layer 2 Nortel Ethernet Routing Switch 4500 Series Configuration Quality of Service NN47205 504 3228...

Page 79: ...Screen 4B User Defined Flows d Layer 2 Layer 4 Access List When configuring Layer 2 Layer 4 Access List policies it is a two step process The first step is to select whether an IP Access List or Layer 2 Access List policy is to be created This is illustrated in QoS Configuration Wizard Screen 4A Access Lists page 80 Nortel Ethernet Routing Switch 4500 Series Configuration Quality of Service NN4720...

Page 80: ... Wizard Screen 4A Access Lists page 80 the screen in QoS Configuration Wizard Screen 4B IP Access List page 80 is displayed Otherwise if Layer 2 Access List is selected the screen in QoS Configuration Wizard Screen 4B Layer 2 Access List page 81 is displayed QoS Configuration Wizard Screen 4B IP Access List Nortel Ethernet Routing Switch 4500 Series Configuration Quality of Service NN47205 504 322...

Page 81: ...d Screen 5 page 81 asking to add more blocks to the policy To add more blocks to a policy repeat step 5 QoS Configuration Wizard Screen 5 If policy configuration is taking place for the Layer 2 Layer 4 Access List traffic type the corresponding screen illustrated in QoS Configuration Wizard Screen 5 Access Lists page 82 is displayed prompting for a service class to be selected for the policy Norte...

Page 82: ... is to apply any metering to the policy This step applies only to the VLAN IP Application and User Defined Flows traffic types The user is first asked if they want to apply metering to the policy QoS Configuration Wizard Screen 6A page 82 If so the metering parameters window is displayed for configuration QoS Configuration Wizard Screen 6B page 83 If not the user is taken to the next step QoS Conf...

Page 83: ...izard screen is illustrated in QoS Configuration Wizard Screen 7 page 83 QoS Configuration Wizard Screen 7 9 The last step in the configuration wizard is to apply the new policy to a set of ports This policy can be applied to one port multiple ports or all ports This wizard screen is illustrated in QoS Configuration Wizard Screen 8 page 84 Nortel Ethernet Routing Switch 4500 Series Configuration Q...

Page 84: ...izard Screen 9 End QoS Management Wizard The QoS Management Wizard manages quality of service policies previously created in the QoS Configuration Wizard To manage a policy using this wizard follow this procedure Step Action 1 Open the management wizard by selecting Application QoS QoS Wizard QoS Wizard Mgmt from the menu The screen illustrated in QoS Management Wizard Screen 1 page 85 is displaye...

Page 85: ...he Edit button is selected in step 2 the wizard edit screen is displayed On this screen policy details can be viewed and the ports that the policy applies to can be changed This screen varies with the type of policy edited QoS Management Wizard Screen 3 VLAN page 86 QoS Management Wizard Screen 3 IP Applications page 87 QoS Management Wizard Screen 3 User Defined Flows page 88 QoS Management Wizar...

Page 86: ... the Web based Management Interface QoS Management Wizard Screen 3 VLAN b IP Applications Nortel Ethernet Routing Switch 4500 Series Configuration Quality of Service NN47205 504 322816 B 03 01 Standard 5 1 23 November 2007 Copyright 2007 Nortel Networks ...

Page 87: ...QoS Management Wizard Screen 3 IP Applications c User Defined Flows Nortel Ethernet Routing Switch 4500 Series Configuration Quality of Service NN47205 504 322816 B 03 01 Standard 5 1 23 November 2007 Copyright 2007 Nortel Networks ...

Page 88: ...d Management Interface QoS Management Wizard Screen 3 User Defined Flows d Layer 2 Layer 4 Access List Nortel Ethernet Routing Switch 4500 Series Configuration Quality of Service NN47205 504 322816 B 03 01 Standard 5 1 23 November 2007 Copyright 2007 Nortel Networks ...

Page 89: ...lication QoS QoS Wizard Interface Shaper from the menu The screen illustrated in QoS Interface Shaper Wizard Screen 1 page 90 is displayed To add an interface shaper select Add at the top of the screen select the ports it will be added to and click Submit To delete an interface shaper select Delete at the top of the screen select the desired ports and click Submit Nortel Ethernet Routing Switch 45...

Page 90: ... set the parameters for the new interface shaper QoS Interface Shaper Wizard Screen 2 Interface Shaper Creation fields page 90 outlines the fields on this screen Interface Shaper Creation fields Field Description Name A name for this interface shaper Shaping Rate The shaping rate in kilobits per second Nortel Ethernet Routing Switch 4500 Series Configuration Quality of Service NN47205 504 322816 B...

Page 91: ...is possible Configuring an Interface Group This section describes the procedures for viewing existing interface groups as well as their creation and management Creating an Interface Group Configuration To create an omterface group configuration perform the following procedure Step Action 1 Open the Interface Config screen by selecting Applications QoS QoS Advanced Devices Interface Config from the...

Page 92: ...ombination name in the Role Combination field and select an interface class from the Interface Class list Interface Group Creation section 3 Click Submit The new interface group configuration is displayed in the Interface Group Table section End Nortel Ethernet Routing Switch 4500 Series Configuration Quality of Service NN47205 504 322816 B 03 01 Standard 5 1 23 November 2007 Copyright 2007 Nortel...

Page 93: ... table displays all interfaces and the interface group role combination to which it belongs If an interface does not belong to an interface group role combination it does not display in the table The table displays a mapping of each interface to its interface group Interface ID screen End Adding or Removing Interface Group Members To select or de select ports as members of an existing interface gr...

Page 94: ...Modify icon in the row to be modified This section is illustrated in Interface Group Table section page 94 Interface Group Table section The Interface Group Assignment screen opens Interface Group Assignment screen page 94 Interface Group Assignment screen 3 In the Ports field select or de select the ports that are to be part of this Interface Group 4 Click Submit Nortel Ethernet Routing Switch 45...

Page 95: ...the Delete icon in the row of the interface group that is being removed A message asks for confirmation of the requested action 6 Click Yes End Configuring 802 1p priority queue assignment ATTENTION Nortel Networks recommends using the default 802 1p assignments to ensure end to end QoS connectivity 802 1p user priority values can be assigned to a queue for each interface with a specific queue set...

Page 96: ...displayed in the 802 1p Priority Assignment Table section In the Queue field assign a number that signifies the desired queue in the specified queue set with which this priority is associated 5 Click the Submit button immediately under the 802 1p Priority Assignment Table section End Configuring 802 1p priority mapping ATTENTION Nortel Networks recommends using the default 802 1p priority to DSCP ...

Page 97: ...apping fields page 97 outlines the fields on this screen Priority Mapping fields Field Description 802 1p Priority The 802 1p user priority to map to a DSCP value at ingress DSCP Type the DSCP value to associate with the specified 802 1p user priority value at ingress Name Enter a name that describes the mapping using 16 alphanumeric characters 3 Click Submit End Nortel Ethernet Routing Switch 450...

Page 98: ... Mapping screen by selecting Applications QoS QoS Advanced Devices DSCP Mapping from the menu This screen is illustrated in DSCP Mapping screen page 98 DSCP Mapping screen 2 Click the icon in the Action column of the row to be configured The DSCP Mapping Modification screen opens This screen is illustrated in DSCP Mapping Modification screen page 99 Nortel Ethernet Routing Switch 4500 Series Confi...

Page 99: ...value Drop Precedence Choose the drop value precedence to use for traffic with the associated 802 1p user priority value with the identified queue High Drop Low Drop ATTENTION Generally low packet drop precedence receives preferential treatment Service Class Enter the service class ATTENTION This field corresponds to the adjacent user priority levels Nortel Ethernet Routing Switch 4500 Series Conf...

Page 100: ...S meter capability To display QoS interface meter capabilities Step Action 1 From the menu select Applications QoS QoS Advanced Devices Meter Capability The Interface Meter Capability screen appears Interface Meter Capability The following table describes the fields on this screen Nortel Ethernet Routing Switch 4500 Series Configuration Quality of Service NN47205 504 322816 B 03 01 Standard 5 1 23...

Page 101: ...Meter Bucket size capability Meter Granularity Kbps Displays the supported Meter Granularity End Displaying QoS shaper capability To display QoS interface shaper capabilities Step Action 1 From the menu select Applications QoS QoS Advanced Devices Shaper Capability The Interface Shaper Capability screen appears Interface Shaper Capability screen The following table describes the fields on this scr...

Page 102: ...iguring IP classifier elements An IP classifier element is created to enable the switch to classify traffic In turn IP classifier elements are then referenced by classifiers and classifier blocks which determine access to and denial of network services Creating an IP classifier element To create an IP classifier element Step Action 1 Open the IP Classifier Element screen by selecting Applications ...

Page 103: ... uses Destination Address The destination IP address this classifier uses Source Address The source IP address this classifier uses DSCP The DSCP setting this classifier uses IPv4 Protocol IPv6 Next Header The IPv4 protocol or IPv6 next header the classifier element will match Destination Layer4 Port The value that the packet s layer 4 destination port number must have to match this classifier ele...

Page 104: ...lustrated in IP Classifier Element screen page 103 2 In the IP Classifier Element Table section click the Delete icon beside the element to be deleted 3 A message prompts for confirmation of the request Click Yes ATTENTION A classifier element that is referenced in a classifier or classifier block cannot be deleted End Configuring Layer 2 classifier elements Layer 2 classifier elements can be conf...

Page 105: ...unused in the classifier element by selecting the Ignore option Layer2 Classifier Element Creation fields page 105 describes the fields in this section Layer2 Classifier Element Creation fields Field Description Destination MAC Address The destination MAC address to use for the classifier Source MAC Address The source MAC address to use for the classifier VLAN The VLAN ID range to use for the clas...

Page 106: ...Element screen page 105 2 In the Layer2 Classifier Element Table click the Delete icon in the row of the classifier element to be deleted 3 A message opens prompting for confirmation of the request Click Yes ATTENTION A Layer 2 classifier element configuration cannot be modified The configuration must be deleted and recreated A Layer 2 classifier element that is referenced by a classifier or class...

Page 107: ...raffic using non typical fields in Layers 2 3 4 and beyond The System Classifier Element feature can be used by advanced QoS users whose classification requirements are not supported using traditional IP and Layer 2 classification support To configure a System Classifier Element follow this procedure Step Action 1 Open the System Classifier Element screen by selecting Applications QoS QoS Advanced...

Page 108: ...difications Existing classifiers and the associated referenced elements can also be used using the Fill in list or typical protocol header data fields using the radio buttons and check boxes to initialize the offset filtering components Session ID Specify the session ID 3 Click Submit End Classifier Configurations Viewing Existing Classifiers To view existing classifiers follow this procedure Step...

Page 109: ...screen by selecting Applications QoS QoS Advanced Rules Classifier This screen is illustrated in Classifiers screen page 109 2 Click Create Classifier 3 The Create Classifier screen opens This screen is illustrated Create Classifier screen page 110 Nortel Ethernet Routing Switch 4500 Series Configuration Quality of Service NN47205 504 322816 B 03 01 Standard 5 1 23 November 2007 Copyright 2007 Nor...

Page 110: ...assifier element or system classifier element However you can create a classifier with only one IP classifier element or only one L2 classifier element or only one system classifier element 6 Click Submit End Deleting a classifier To delete a classifier Step Action 1 Open the Classifiers screen by selecting Applications QoS QoS Advanced Rules Classifier This screen is illustrated in Classifiers sc...

Page 111: ...ey must all specify meters or they must all not specify meters and they must all specify actions or they must all not specify actions Viewing Classifier Blocks To view classifier blocks Step Action 1 Open the Classifier Blocks screen by selecting Applications QoS QoS Advanced Rules Classifier Block from the menu This screen is illustrated in Classifier Block screen page 111 Classifier Block screen...

Page 112: ... Create Classifier Block screen 4 Enter a name for the block in the Classifier Block Name field 5 Select the classifiers to include in the block from the Classifier Block Members section 6 Click Submit End Deleting a Classifier Block To delete a classifier block follow this procedure Step Action 1 Open the Classifier Blocks screen by selecting Applications QoS QoS Advanced Rules Classifier Block f...

Page 113: ...ch the incoming packets the created actions are performed on those packets Creating an Action To create an action follow this procedure Step Action 1 Open the Action screen by selecting Applications QoS QoS Advanced Action from the menu This screen is illustrated in Action screen Action screen Nortel Ethernet Routing Switch 4500 Series Configuration Quality of Service NN47205 504 322816 B 03 01 St...

Page 114: ...nstalled policies No do not drop the traffic flow Yes drop the traffic flow The default setting is Deferred Pass Update DSCP Choose a value When this field is defined it causes the value contained in the Differentiated Services DS field of an associated IP datagram to be updated with the value of this object The default setting is Ignore Set Drop Precedence Choose a packet drop precedence value AT...

Page 115: ...ID Specify the session ID 3 Click Submit End Modifying an action configuration To modify an action configuration Step Action 1 Open the Action screen by selecting Applications QoS QoS Advanced Action from the menu This screen is illustrated in Action screen 2 In the Action Table section click the Modify icon in the row of the action to be modified 3 The Action Modification screen opens with the fi...

Page 116: ...d Action from the menu This screen is illustrated in Action screen 2 In the Action Table section click the Delete icon in the row that represents the Action to be deleted 3 A message prompts for confirmation of the request 4 Click Yes ATTENTION An action that is referenced by a meter classifier block or policy cannot be deleted The associated item must first be deleted A system default or system c...

Page 117: ...cations QoS QoS Advanced Interface Action Ext This screen is illustrated in Interface Action Extension screen Interface Action Extension screen 2 In the Interface Action Extension Creation section use the fields provided to create the new action extension Interface Action Extension Creation fields outlines the fields in this section Interface Action Extension Creation fields Field Description Acti...

Page 118: ...ension you should select both fields set egress unicast and set egress non unicast Same port should be used for both unicast and non unicast packets Deleting an interface action extension configuration To delete an interface action extension complete these tasks Step Action 1 Open the Interface Action Extension screen by selecting Applications QoS QoS Advanced Interface Action Ext This screen is i...

Page 119: ...reens to view create modify and delete QoS meters Creating a QoS Meter To create a QoS meter follow this procedure Step Action 1 Open the Meter screen by selecting Applications QoS QoS Advanced Meter from the menu This screen is illustrated in Meter screen Meter screen Nortel Ethernet Routing Switch 4500 Series Configuration Quality of Service NN47205 504 322816 B 03 01 Standard 5 1 23 November 20...

Page 120: ...ize Maximum Burst Rate Enter the Maximum Burst Rate in Kbps Duration From the list choose 1 of up to 13 durations for the period that the Maximum Burst Rate is allowed In Profile Action Choose from the list of Default actions All actions you created using the Action page The default setting is Drop Traffic Out of Profile Action Choose from the list of Default actions All actions you created using ...

Page 121: ... delete the meter 3 A message prompts for confirmation of the request Click Yes End Configuring QoS Interface Shaper Interface Shaping is a method that involves limiting the traffic rate at egress through a specific interface Interface based shaping allows administrators to limit egress traffic generation independent of other QoS components It provides limited shaping capabilities with minimal con...

Page 122: ...erface Shaper screen Interface Shaper screen 2 Click on the Add option button and select the desired ports 3 Click Submit 4 The Interface Shaper Creation screen is displayed This screen is displayed in Interface Shaper Creation screen Interface Shaper Creation screen Nortel Ethernet Routing Switch 4500 Series Configuration Quality of Service NN47205 504 322816 B 03 01 Standard 5 1 23 November 2007...

Page 123: ...rface Shaping parameters can be deleted for a single port or multiple ports To delete the parameters Step Action 1 Open the Interface Shaper screen by selection Applications QoS QoS Advanced Interface Shaper This screen is illustrated in Interface Shaper screen 2 In the Interface Shaper Setting section select the Del option and the ports that the configuration parameters are to be deleted from 3 C...

Page 124: ...ep Action 1 Open the Policy screen by selecting Application QoS QoS Advanced Policy from the menu This screen is illustrated in Policy screen Policy screen 2 In the Policy Creation section enter the information for the policy in the fields provided Policy Creation fields describes the fields in this section Policy Creation fields Field Description Policy Name Type a character string to create a un...

Page 125: ...The highest value for precedence is evaluated first Meter Choose either None no meter is associated with this policy one of the user defined meters In Profile Action Choose the action to be taken for the data associated with this policy ATTENTION If this policy is metered an In Profile Action are not be chosen here the policy is referenced from the Meter entry Track Statistics Choose whether to tr...

Page 126: ...the Policy Table section for the policy to be viewed The Policy Statistics screen opens This screen is illustrated in Policy Statistics screen Policy Statistics screen End Deleting a hardware policy configuration To delete a hardware policy configuration Step Action 1 Open the Policy screen by selecting Application QoS QoS Advanced Policy from the menu This screen is illustrated in Policy screen N...

Page 127: ...ameters can be configured in the Web based Management Interface To open the configure QPA parameters follow this procedure Step Action 1 Open the Agent Configuration screen by selecting Application QoS QoS Advanced Agent Configuration from the menu This screen is illustrated in Agent Configuration screen Nortel Ethernet Routing Switch 4500 Series Configuration Quality of Service NN47205 504 322816...

Page 128: ...he fields provided QoS Configuration fields describes the fields in this area QoS Configuration fields Field Description QoS Policy Agent Reset to Defaults Choose whether or not to reset the policy agent to the default settings Nortel Ethernet Routing Switch 4500 Series Configuration Quality of Service NN47205 504 322816 B 03 01 Standard 5 1 23 November 2007 Copyright 2007 Nortel Networks ...

Page 129: ...amine the raw bit form of the classifiers placed into a classifier block in order to compare the masks ATTENTION Classifiers must be configured already to display the rules and masks the value and mask for a range can be displayed before configuring that range To open the Diagnostics screen Step Action 1 Open the Diagnostics screen by selecting Application QoS QoS Advanced Agent Diagnostic from th...

Page 130: ...f Service QoS with the Web based Management Interface Diagnostics screen Nortel Ethernet Routing Switch 4500 Series Configuration Quality of Service NN47205 504 322816 B 03 01 Standard 5 1 23 November 2007 Copyright 2007 Nortel Networks ...

Page 131: ...Displays if a policy with precedence 4 is applied to this port Precedence 3 Displays if a policy with precedence 3 is applied to this port Precedence 2 Displays if a policy with precedence 2 is applied to this port QoS Mask Precedence Usage Precedence 1 Displays if a policy with precedence 1 is applied to this port Select one of the port ranges located between the QoS Mask Precedence Usage window ...

Page 132: ...d interface Filters Total Displays the maximum number of filters available for each precedence and for each ASIC Meters Total Displays the maximum number of meters available for each precedence and for each ASIC Counters Total Displays the maximum number of counters available for each precedence and for each ASIC QoS Resource Allocation Table Range Checkers Consumed Displays the number of range ch...

Page 133: ...2 To display a valid range a Use the QoS Valid Range section to enter the beginning number of the desired range b From the list choose the end of the range from the system provided choices c Click Submit 3 To display a QoS encapsulating range a Choose range from the QoS Encapsulating Range section using the provided lists b Click Submit End Nortel Ethernet Routing Switch 4500 Series Configuration ...

Page 134: ... Quality of Service QoS with the Web based Management Interface Nortel Ethernet Routing Switch 4500 Series Configuration Quality of Service NN47205 504 322816 B 03 01 Standard 5 1 23 November 2007 Copyright 2007 Nortel Networks ...

Page 135: ...These system default entries cannot be modified or deleted Managing interface groups Interface queues and groups can be displayed Displaying interface queues To display interface queues Step Action 1 Open the QosDevice screen by selecting QoS QoS Devices from the menu This screen is illustrated in QOSDevice Interface Queue tab Select the Interface Queue tab QOSDevice Interface Queue tab describes ...

Page 136: ...e to this queue in Kb s BandwidthAllocat ion Displays bandwidth allocation relative or absolute ServiceOrder The order in which a a queue is serviced based on the defined discipline Size Displays the size of the queue in bytes End Displaying interface groups To display interface groups Step Action 1 Open the QosDevice screen by selecting QoS QoS Devices from the menu This screen is illustrated in ...

Page 137: ... the policies and configurations that can be pushed to the Policy Enforcement Point PEP StorageType Displays storage type for this interface group Volatile nonVolatile default readOnly other End Assigning ports to an interface group Device Manager lets you assign ports to an interface group To assign ports to an interface group Step Action 1 Open theQosDevice screen by selecting QoS QoS Devices fr...

Page 138: ...emove ports from an interface group Step Action 1 Open the QosDevice screen by selecting QoS QoS Devices from the menu This screen is illustrated in QOSDevice Interface Queue tab Select the Interface Group tab This tab is illustrated in QOSDevice Interface Group tab 2 Highlight the interface group from which to delete ports 3 Click Interface Assignment 4 The Group Assignment screen opens Group Ass...

Page 139: ...r the Role combination tag for this Interface Group 6 Select the interface class desired for this interface group trusted nonTrusted or unrestricted 7 Click Insert End Deleting interface groups To delete an interface group Step Action 1 Open the QosDevice screen by selecting QoS QoS Devices from the menu This screen is illustrated in QOSDevice Interface Queue tab Select the Interface Group tab Thi...

Page 140: ...g an interface ID To display the interface ID Step Action 1 Open the QosDevice screen by selecting QoS QoS Devices from the menu This screen is illustrated in QOSDevice Interface Queue tab Select the Interface ID Assignments tab This tab is illustrated in QOSDevice Interface ID Assignments tab QOSDevice Interface ID Assignments tab Interface ID Assignments tab fields The following table Interface ...

Page 141: ...terface ID Assignments tab This tab is illustrated in QOSDevice Interface ID Assignments tab 2 Click the Filter button The Interface ID Asignments Filter screen displays Interface ID Assignments Filter screen 3 Set the conditions to be used to filter the display of the Interface ID Assignments table a Select AND to include all entries in the table that include all specified parameters or select OR...

Page 142: ...to display g To display the entries in the table by queue set select QueueSet and enter the QueueSet values to display 4 Click Filter End Displaying priority queue assignments Use Device Manager to view Priority Q Assignments To display priority queue assignments Step Action 1 Open the QosDevice screen by selecting QoS QoS Devices from the menu This screen is illustrated in QOSDevice Interface Que...

Page 143: ...e a new value End Displaying priority mapping To display priority mapping Step Action 1 Open the QosDevice screen by selecting QoS QoS Devices from the menu This screen is illustrated in QOSDevice Interface Queue tab Select the Priority Mapping tab This tab is illustrated in Priority mapping tab Priority mapping tab describes the priority mapping tab fields Priority mapping tab fields Field Descri...

Page 144: ...DSCP mappings Step Action 1 Open the QosDevice screen by selecting QoS QoS Devices from the menu This screen is illustrated in QOSDevice Interface Queue tab Select the DSCP tab This tab is illustrated in DSCP mapping tab DSCP mapping tab describes the DSCP mapping tab fields DSCP mapping tab fields Field Description Dscp Shows the DSCP value This field is read only Nortel Ethernet Routing Switch 4...

Page 145: ... with high drop precedence during resource allocation To change the setting click in a cell and choose the setting ServiceClass Specifies the type of service End Displaying Meter Capability To display QoS interface meter capabilities Step Action 1 From the menu select QoS QoS Devices The QOSDevice dialog box appears with the Interface Queue tab displayed 2 Select the Meter Capability tab The Meter...

Page 146: ... Simple Token Bucket Meter Rate Kbps Bucket KBytes Granul arity Kbps Displays maximum suppported Meter Rate End Displaying Shaper Capability To display QoS interface shaper capabilities Step Action 1 From the menu select QoS QoS Devices The QOSDevice dialog box appears with the Interface Queue tab displayed 2 Select the Shaper Capability tab The Shaper Capability tab appears Nortel Ethernet Routin...

Page 147: ...Granulatiry Kbps Displays the maximum supported Shaper Rate Shaper Budket size and Shaper Granularity End Managing QoS rules This section discusses the management of QoS rules using the JDM Displaying IP classifier elements To display the IP classifier elements Step Action 1 Open the QosRules screen by selecting QoS QoS Rules from the menu This screen is illustrated in IP Classifier Element tab No...

Page 148: ... a packet s destination IP address DstMaskLength Specifies the length of the destination address mask SrcAddr Specifies the IP address to match against a packet s source IP address SrcMasklength Specifies the length of the source address mask Dscp Specifies the value for the DSCP in a packet Protoco Next Header Specifies the IPv4 protocol or IPv6 next header the classifier element will match DstL4...

Page 149: ... is illustrated in IP Classifier Element tab Select the IP Classifier Element tab This tab is illustrated in IP Classifier Element tab 2 Click Insert The Insert IP Classifier Element screen opens Insert IP Classifier Element dialog box Insert IP Classifier Element dialog box 3 Enter the information you want to use for this IP classifier element Nortel Ethernet Routing Switch 4500 Series Configurat...

Page 150: ...ot be deleted if it is referenced by a classifier or classifier block Additionally an IP classifier element cannot be deleted if it is of the storage type of other or readOnly End Displaying L2 classifier elements Device Manager lets you display classifiers To display L2 classifiers Step Action 1 Open theQosRules screen by selecting QoS QoS Rules from the menu This screen is illustrated in IP Clas...

Page 151: ...k Specifies a mask identifying the source MAC address VlanId Specifies the value for the VLAN ID in a packet VlanTag Specifies the type of VLAN tagging in a packet untagged tagged ignore EtherType Specifies a value for the Ethertype 802 1pPriority Specifies a value for the 802 1p user priority SessionId Specifies the session ID Storage Specifies the type of storage End Adding L2 classifier element...

Page 152: ...ting QoS QoS Rules from the menu This screen is illustrated in IP Classifier Element tab Select the L2 Classifier Element tab This tab is illustrated in L2 Classifier Element tab 2 Highlight any table cell of the L2 classifier element to delete 3 Click Delete Device Manager deletes the entire L2 classifier element ATTENTION A L2 classifier element cannot be deleted if it is referenced by a classif...

Page 153: ...s containing an unknown unicast destination address will match this classification entry A value of false 2 indicates that no classification is requested based on this address type UnknownMcastFrames If true 1 frames containing an unknown multicast destination address will match this classification entry A value of false 2 indicates that no classification is requested based on this address type Kn...

Page 154: ...n match data should be applied to IPv4 packets ipv6 indicates that the specified pattern match data should be applied to IPv6 packets SessionId Specifies the session ID Storage The storage type for this conceptual row Conceptual rows that has the value permanent need not allow write access to any columnar objects in the row This object may not be modified if the associated status object is equal t...

Page 155: ...ustrated in IP Classifier Element tab Select the System Clfr Element tab This tab is illustrated in System Clfr Element tab 2 Click Insert The Insert System Clfr Element screen opens QoSRules Insert System Clfr Element dialog box QoSRules Insert System Clfr Element dialog box 3 Select the DestAddressType 4 Type thePatternData or PatternPosition information manually Alternatively click on the ellip...

Page 156: ...umber Pattern Data Position screen 7 Select IPv4 or IPv6 8 Select tagged or untagged 9 Select the required fields to set up a template guide so that it will be easier to configure the data and position of the pattern 10 Type the desired Data and Position in two digit hex number format 11 Click Ok 12 Click Insert End Deleting System Classifier Elements To delete System Classifier Elements Nortel Et...

Page 157: ... display classifiers Step Action 1 Open the QosRules screen by selecting QoS QoS Rules from the menu This screen is illustrated in IP Classifier Element tab Select the Classifier tab This tab is illustrated in Classifier tab Classifier tab Classifier tab fields describes the Classifier tab fields Classifier tab fields Field Description Name Specifies the name of the classifier Nortel Ethernet Rout...

Page 158: ...orage The storage type for this conceptual row Conceptual rows that has the value permanent need not allow write access to any columnar objects in the row This object may not be modified if the associated status object is equal to active End Adding classifiers To add a classifier Step Action 1 Open the QosRules screen by selecting QoS QoS Rules from the menu This screen is illustrated in IP Classi...

Page 159: ...using the following combination one system classifier element one IP classifier one system classifier one L2 classifier one system classifier one IP one L2 plus one system classifier A classifier can be created by using any combination of classifier elements Entries with the same SetId belong to the same classifier Click on the SetId column header to sort the table by SetId value this makes it ver...

Page 160: ...ed if it is of the storage type of other or readOnly End Filtering Classifiers To filter the display of classifiers follow this procedure Step Action 1 Open the QosRules screen by selecting QoS QoS Rules from the menu This screen is illustrated in IP Classifier Element tab Select the Classifier tab This tab is illustrated in Classifier tab 2 Click Filter The Filter screen opens This screen is illu...

Page 161: ...ble by name select Name and enter the Name values to display f To display the entries in the table by setid select SetId and enter the SetId values to display 4 Click Filter End Displaying Classifier Blocks To display classifier blocks Step Action 1 Open the QosRules screen by selecting QoS QoS Rules from the menu This screen is illustrated in IP Classifier Element tab Select the Classifier Block ...

Page 162: ...ered For those flows being metered this attribute is not applied SessionId Specifies the session ID Storage The storage type for this conceptual row Conceptual rows that has the value permanent need not allow write access to any columnar objects in the row This object may not be modified if the associated status object is equal to active End Appending Classifier Blocks To append a classifier block...

Page 163: ...the QosRules screen by selecting QoS QoS Rules from the menu This screen is illustrated in IP Classifier Element tab Select the Classifier Block tab This tab is illustrated in Classifier Block tab 2 Click Insert The Insert Classifier Block screen opens Insert Classifier Block screen Insert Classifier Block screen Nortel Ethernet Routing Switch 4500 Series Configuration Quality of Service NN47205 5...

Page 164: ...ue End Deleting Classifier Blocks To delete a classifier block Step Action 1 Open the QosRules screen by selecting QoS QoS Rules from the menu This screen is illustrated in IP Classifier Element tab Select the Classifier Block tab This tab is illustrated in Classifier Block tab 2 Highlight the classifier block to delete 3 Click Delete ATTENTION The last classifier element in a classifier block can...

Page 165: ...on case and column 4 Type the BlockNum and Name 5 Click Filter End Managing QoS actions Interface action extensions Meters Policies Interface Shapers and Interface Applications This section discusses the management and use of QoS actions interface action extensions meters and policies Displaying QoS actions To display a QoS action Step Action 1 Open the QoS screen by selecting QoS QoS from the men...

Page 166: ... UpdateDscp Specifies a value used to update the DSCP field in an IPv4 packet SetDropPrecedence Specifies automatic drop precedence UpdateUserPriority Specifies a value for the 802 1p user priority Extension Specifies linking additional actions These are defined on the Interface Action Ext Table SessionId Specifies the session ID Storage Specifies the type of storage volatile nonVolatile readOnly ...

Page 167: ...een opens Insert Action screen Insert Action screen 3 Enter the information and make the selections to use for this QoS action 4 Click Insert End Deleting QoS actions To delete a QoS action Step Action 1 Open the QoS screen by selecting QoS QoS from the menu This screen is illustrated in QoS Action tab Select the Action tab This tab is illustrated in QoS Action tab 2 Highlight the QoS action to de...

Page 168: ...terface Action Ext tab This tab is illustrated in Interface Action Ext tab Interface Action Ext tab Interface Action Ext tab fields describes the Interface Action Ext tab fields Interface Action Ext tab fields Field Description Id Specifies the number of the interface action extension Name Specifies the label of the interface action extension SetEgressUnicastPort Specifies redirection of normally ...

Page 169: ...e Action Ext tab 2 Click Insert The Insert Interface Action Ext screen opens Insert Interface Action Ext screen Insert Interface Action Ext screen 3 Enter the information and make the selections to use for this Interface action extension 4 Click Insert End Deleting Interface action extensions To delete a QoS interface action extension Step Action 1 Open the QoS screen by selecting QoS QoS from the...

Page 170: ... illustrated in QoS Meter tab QoS Meter tab QoS Meter tab fields describes the QoS Meter tab fields QoS Meter tab fields Field Description id Specifies the unique identifier for this entry Name Specifies a name for this entry CommittedRate Specifies the committed rate in Kbps CommittedBurstSize Specifies the committed burst in bytes InProfileAction Specifies in profile action OutOfProfileAction Sp...

Page 171: ...The Insert Meter screen opens Insert Meter screen Insert Meter screen 3 Enter the information and make the selections to use for this QoS meter 4 Click Insert End Deleting QoS meters To delete a QoS meter Step Action 1 Open the QoS screen by selecting QoS QoS from the menu This screen is illustrated in QoS Action tab Select the Meter tab This tab is illustrated in QoS Meter tab Nortel Ethernet Rou...

Page 172: ...ction tab Select the Interface Shaper tab This tab is illustrated in QoS Interface Shapers tab QoS Interface Shapers tab Interface Shaper tab fields describes the Interface Shaper tab fields Interface Shaper tab fields Field Description Port The port number that is associated with this instance of the ntnQosIfShapingEntry The port number must correspond to the ifTable entry with the same port numb...

Page 173: ...BS and PBS in RFC 2698 for trTCM Burst Size in RFC 3290 End Adding Interface Shapers To add QoS Interface Shapers Step Action 1 Open the QoS screen by selecting QoS QoS from the menu This screen is illustrated in QoS Action tab Select the Interface Shaper tab This tab is illustrated in QoS Interface Shapers tab 2 Click Insert The Insert Interface Shaper screen opens QoS Insert Interface Shaper dia...

Page 174: ...his screen is illustrated in QoS Action tab Select the Interface Shaper tab This tab is illustrated in QoS Interface Shapers tab 2 Highlight the Interface Shaper that to delete 3 Click Delete End Displaying QoS policies To display QoS policies Step Action 1 Open the QoS screen by selecting QoS QoS from the menu This screen is illustrated in QoS Action tab Select the Policy tab This tab is illustra...

Page 175: ...cy applies ATTENTION You must configure the role combinations refer to Managing interface groups prior to associating it with a policy InterfaceIndex The ifIndex field identifies the interface to which the policy is to be applied A policy is associated with an interface explicitly using this attribute or implicitly using a role combination through the ntnQosPolicyInterfaceRole attribute An interfa...

Page 176: ...ltiple policies are associated with the same interface Policies with greater precedence have higher numbers ATTENTION Policies with higher precedence values are applied before policies with lower precedence values Meter Specifies metering associated with this policy Specifying a metering component causes any action criteria specified explicitly by the policy to be rejected as an error ATTENTION Yo...

Page 177: ...racking none no statistics tracked for this policy individual separate counters allocated space permitting for each classifier referenced by the policy aggregate a single counter accumulates all the statistics for all the classifiers referenced by the policy SessionId Specifies the session ID Storage Specifies the type of storage volatile nonVolatile readOnly End Adding QoS policies To add a QoS p...

Page 178: ...oles and InterfaceIndex fields are mutually exclusive When the InterfaceIndex field is not zero the InterfaceRoles must be empty select none when inserting the policy When the InterfaceRoles specifies a valid role combination the InterfaceIndex field must be 0 End Deleting QoS policies To delete a QoS policy Step Action 1 Open the QoS screen by selecting QoS QoS from the menu This screen is illust...

Page 179: ...t profile packets If the Policy Meter is set to none no total out profile packet information is available If the Policy Stats type is set to individual the individual stats consisting of in profile and out profile packets appears If policy meter is set to no no out profile packet information is available Individual stats are provided for each policy for each filter for each port Configuring Nortel...

Page 180: ...l SNA solution Step Action 1 Select QoS QoS NSNA from the Device Manager menu The QOS_NSNA dialog box opens with the Classifier tab selected see QOS_NSNA Classifier dialog box page 180 QOS_NSNA Classifier dialog box 2 Click Insert The QOS_NSNA Insert Classifier dialog box opens see QOS_NSNA Insert Classifier dialog box page 180 QOS_NSNA Insert Classifier dialog box 3 Enter the classifier informati...

Page 181: ...evaluation order A higher eval order means a lower precedence for the corresponding policy AddrType Specifies the type of IP address used by this classifier entry DstIpAddr Specifies the IP address to match against the destination IP address of a packet DstIpPrefixLength Specifies the length of the destination address mask SrcIpAddr Specifies the IP address to match against the source IP address o...

Page 182: ...fies the minimum value for the VLAN ID in a packet VlanIdMax Specifies the maximum value for the VLAN ID in a packet VlanTag Specifies the type of VLAN tagging in a packet untagged tagged ignore EtherType Specifies the value for the Ether type UserPriority Specifies the value for the 802 1p user priority ActionDrop Specifies whether or not to drop the traffic matching filtering data UpdateDscp Spe...

Page 183: ...page 183 describes the QoS NSNA Set fields QoS NSNA Set fields Field Description Name Specifies a name for this entry The name must be an existing classifier name All classifiers with this name are part of this filter set The filter set itself has this name IfIndex Specifies the logical interface index assigned to the VLAN CommittedRate Specifies the committed rate in Kbps BurstSize Specifies the ...

Page 184: ...packet is non matching This action is applied to all traffic that was not previously matched by the specified filtering data Options are the following drop packet is dropped pass packet not dropped defer no explicit drop pass action is specified the decision is deferred The default value is defer OutActionUpdateDscp Specifies the action to take to update DSCP when a packet is out of profile The de...

Page 185: ...ep Action 1 From the Device Manager main menu select QoS The QoS menu appears 2 Select QoS_NSNA The QOS_NSNA window opens with the Classifier tab open 3 Click the Set tab The Set dialog opens 4 Select a set to delete 5 Click Delete End QoS agent This section contains information on working with QoS agents Nortel Ethernet Routing Switch 4500 Series Configuration Quality of Service NN47205 504 32281...

Page 186: ...figuration tab fields Field Description NVRamCommitDelay Specifies the maximum time before non volatile QoS data is written to NVRAM ResetToDefaults Click to reset all policy information to factory default values End Displaying policy class support To display policy class support Step Action 1 Open theQoSAgent screen by selecting QoS QoS Agent from the menu This screen is illustrated in QoSAgent C...

Page 187: ... current number of Policy Rules Instances PRIs that are installed for a specific PRC equates to the current number of entries in a given MIB table MaxInstalledInstances The maximum number of PRIs that can be installed and or modified by a user for a specific PRC equates to the number of MIB table entries that can be created or modified by a user End Displaying policy device identification To displ...

Page 188: ...dentification tab fields Field Description Descr A description of the policy agent ATTENTION The description must include the name and version identification of the policy agent hardware and software MaxMsg The maximum message size in octets that the device can support End Displaying resource allocation To display QoS resource Allocation information Step Action 1 Open the QoSAgent screen by select...

Page 189: ...installed filter data for a given precedence level and interface NonQosMetersConsumed Tracks the current number of meters in use not due to installed policy data for a given precedence level and interface TotalFiltersAvail Displays the maximum number of filters available for each precedence and for each ASIC TotalMetersAvail Displays the maximum number of meters available for each precedence and f...

Page 190: ...de any of the specified parameters b Select IGNORE CASE to include all entries with the parameters being set whether in lower case or upper case c Define the search to return all cases in which an entry CONTAINS DOES NOT CONTAIN EQUALS TO DOES NOT EQUAL TO the set parameters d Select ALL RECORDS to display all entries in the table e Set Precedence to filter by order of precedence f Select Port to ...

Page 191: ...d 170 configuration QoS 138 139 contact Nortel Technical Support 16 CoS to queue assignments 48 CountersConsumed field 189 CurrentInstances field 187 D DestMacAddr field 151 Differentiated Services DiffServ 17 17 Differentiated services DiffServ 18 DiffServ 75 Discipline field 136 Drop field 166 drop precedence 32 DropPrecedence field 145 DSCP 32 Dscp field 144 144 148 DSCP mapping 96 DSCP to 802 ...

Page 192: ...erface queues 135 Interface Shaper 174 Interface shaping 21 Interface Shaping 121 InterfaceClass field 137 InterfaceRoles field 175 interfaces 50 intradomain QoS 19 IP classifier element 102 IP filter tab IPv6FlowId field 148 J Java Device Manager JDM 135 L Layer 2 classifier elements 104 layer 2 filter group tab M MAC Security 33 MaximumInstalledInstances field 187 MaxMsg field 188 Meter field 16...

Page 193: ...84 qos meter 67 QoS metering 28 QoS meters 119 QoS meters tab QoS policies 32 70 123 174 QoS policies tab QoS policy class tab QoS policy device identification tab QoS priority assign tab QoS priority mapping tab QoS queue 35 QoS Resource Allocation Table field 132 qos system element 62 QoS Wizards 75 QoSRules Classifier Block Filter dialog box 165 QPA operational parameters 127 Quality of Service...

Page 194: ...t 106 T the Interface Assignment button 138 traffic stream 18 troubleshooting QoS 138 139 150 159 160 164 164 168 170 172 trusted 29 U unrestricted 29 untrusted 29 Update Dscp field 166 UpdateUserPriority field 166 V video stream 18 18 VlanId field 151 VlanTag field 151 Nortel Ethernet Routing Switch 4500 Series Configuration Quality of Service NN47205 504 322816 B 03 01 Standard 5 1 23 November 2...

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Page 196: ...oblem in this document go to www nortel com documentfeedback Sourced in Canada India and the United States of America The information in this document is subject to change without notice Nortel Networks reserves the right to make changes in design or components as progress in engineering and manufacturing may warrant Nortel Nortel Networks the Nortel logo and the Globemark are trademarks of Nortel...

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