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Vanguard Routing Model

RTP/UDP/IP Header Compression

Motorola’s
Implementation of
RTP/UDP/IP Header
Compression

Vanguard routers supports RTP/UDP/IP and/or UDP/IP header compression. As
shown in Figure 2-17, the Vanguard compresses the 40 byte header to between 2 to 4
bytes. If UDP checksum is being sent, the RTP/UDP/IP header is compressed from
40 bytes to 4 bytes. If no UDP checksum is being sent, header compression is 40
bytes to 2 bytes.

Figure 2-17. RTP/UDP/IP Header Compression

Motorola’s Vanguard products support:

• header compression by traffic type - RTP/UDP/IP, UDP/IP, or both

• header compression on a link-by-link basis

• header compression of RTP/UDP/IP or UDP/IP packets carried over PPP or

Frame Relay WAN links

Options for Header
Compression

The Vanguard products can support header compression in four different
configurations. Header compression can be enabled to:

• Compress outgoing packets only; incoming compressed packets are not

recognized for decompression.

• Decompress the incoming compressed packets only; outgoing packets sent on

an interface are not compressed.

• Compress all the outgoing packets and decompress all the incoming

compressed packets on an interface.

In addition, header compression can be configured to autodetect the compression
state of incoming and outgoing packets. If an incoming packet received on a link is
compressed then the outgoing packets are also be compressed.

Packet Voice/Data

IP

UDP

RTP

Packet Voice/Data

IP UDP RTP

40 Bytes

2 to 4 Bytes

«
...
40
41
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44
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»

Summary of Contents for Vanguard 100

Page 1: ...Motorola Vanguard Applications Ware IP and LAN Feature Protocols Vanguard Router Basics POWE R STATUS SERVI CE RESET ...

Page 2: ...or use by the Department of Defense the following legend applies Restricted Rights Legend Use duplication or disclosure by the Government is subject to restrictions as set forth in subparagraph c 1 ii of the Rights in Technical Data and Computer Software clause at DFARS 252 227 7013 If the software is procured for use by any U S Government entity other than the Department of Defense the following ...

Page 3: ...for any purpose other than that for which it is being made available Use of software described in this document is subject to the terms and conditions of the Motorola Software License Agreement This document is for information purposes only and is subject to change without notice To comment on this manual please send e mail to LJM043 email mot com Part No T0100 01 Rev B Publication Code KP First P...

Page 4: ......

Page 5: ... 2 9 RFC1356 Multiprotocol Encapsulation 2 10 LAN Connection Encapsulation Examples 2 11 WAN Port 2 13 WANView and LANView 2 14 WANView Point to Point LCON 2 16 LANView of the WAN Group LCONs 2 17 LANView Examples 2 21 RTP UDP IP Header Compression 2 25 How RTP UDP IP Compression and Decompression Occurs 2 28 Using Bridging Routers to Connect LANs and Networks 2 31 Chapter 3 Configuring a Vanguard...

Page 6: ...d Chapter 4 LAN Connection Statistics Using LAN Connection Statistics 4 2 LAN Connection Statistics 4 3 LAN Connection Summary Statistics 4 8 RTP UDP IP Compression Statistics 4 9 LAN Connection Group Statistics 4 12 Index ...

Page 7: ...ction to Vanguard IP and LAN Feature Protocols Overview Introduction This chapter introduces the key features and protocols supported by the Vanguard IP Applications Ware You will find a summary of the major Request for Comments RFCs supported by Vanguard IP Applications Ware ...

Page 8: ... functionality and options Figure 1 1 lists some of the functionality supported by the Vanguard IP Applications Ware Figure 1 1 Vanguard IP Protocol Support Physical Layer Data Link Layer Network Layer Transport Layer Application Layer Ethernet 802 3 Token Ring 802 5 Bridging Internet Protocol IP OSPF DVMRP ICMP TCP SNMP TELNET RIP BOOTP UDP IPX Appletalk Frame Relay PPP X 25 ISDN SMDS Multilink P...

Page 9: ...rt many different protocols over the Wide Area Network WAN to remote destinations Supported protocols include Novell Netware DECnet Banyan Vines Token Ring 802 5 Vanguard Token Ring LAN functionality complies with the IEEE 802 5 specifications and provides Source Route Bridging to transport many different protocols over the Wide Area Network WAN to a remote destination Some of the supported protoc...

Page 10: ...tiple LANs The Vanguard supports these types of bridging Translational Bridging Source Route Bridging for Token Ring Transparent Bridging Routing Router interconnect network segments and transport data across an network from a source to a destination Routers store and forward data in an network regardless of network topology Routers operate at the Network layer and therefore offer some flexibility...

Page 11: ...ting Network Address Translation NAT Class Inter Domain Routing CIDR for OSPF and static routes In addition Motorola IP implementation also offers bandwidth management solutions to maximize network performance and availability These solutions offer Dial on demand routing IP load balancing Bandwidth on demand Data compression Bandwidth allocation Time of Day link control Traffic and Protocol priori...

Page 12: ...eature allows terminal and host devices operating serial protocols to connect and communicate with each other over an IP network This provides a cost effective alternative to X 25 WAN connection IPX The Internetwork Packet Exchange IPX protocol is the network layer protocol used in Novell NetWare networks Vanguard products can serve as IPX routers to interconnect PC workstations with any Novell se...

Page 13: ...ssion Control Protocol J Postel Sep 01 1981 826 An Ethernet Address Resolution Protocol or Converting network protocol addresses to 48 bit Ethernet Address for Transmission on Ethernet hardware D C Plummer Nov 01 1982 877 Standard For The Transmission Of IP Datagrams Over Public Data Networks J t Korb Sep 01 1983 919 Broadcasting Internet Datagrams J C Mogul Oct 01 1984 922 Broadcasting Internet d...

Page 14: ...es E Decker P Langille A Rijsinghani K Mccloghrie December 1991 1294 Multiprotocol Interconnect Over Frame Relay T Bradley C Brown A Malis January 1992 1315 Management Information Base for Frame Relay DTEs C Brown F Baker C Carvalho April 9 1992 1398 Definitions Of Managed Objects For The Ethernet like Interface Types F Kastenholz January 1993 1490 Multiprotocol Interconnect Over Frame Relay T Bra...

Page 15: ...tions and Extensions for BOOTP W Wimer October 1993 1631 The Network Address Translation NAT K Egevang P Francis May 1994 1812 Requirements for IP Version 4 Routers F Baker June 1995 1918 Address Allocation for Private Internets Y Rekhter B Moskowitz D Karrenberg G J de Groot E Lear February 1996 2131 Dynamic Host Configuration Protocol R Droms March 1997 RFC Description ...

Page 16: ......

Page 17: ...or more LANs over a WAN This chapter will describe the key components of the Vanguard routing model the concepts of X 25 virtual circuits and how they are used in the Vanguard the term LAN connection LCON what it means and why is it used LANview and WANview models provide basics configuration examples Note about Configuration Examples The configuration examples provided in this manual highlight th...

Page 18: ...rcuit defined by a Router Interface 1 as shown in Figure 2 1 Depending on the IP Forwarder function configured the data traffic is passed to the WAN adaptor through another virtual circuit defined by another Router Interface 5 as shown in Figure 2 1 The IP Forwarder can have multiple virtual circuits to the WAN Adaptor WAN Adaptor The WAN Adaptor connects the IP Forwarder to the WAN ports via a vi...

Page 19: ... on Bridge Router functions refer to Using Bridging Routers to Connect LANs and Networks section on page 2 31 Virtual Circuits Defined by Router Interface The connection point of the IP forwarder to the LAN port is a virtual circuit called a Router Interface Each Router Interface has an IP address associated with it This IP address must have its network portion equal to the network number to which...

Page 20: ...h virtual circuits LAN Protocols LAN protocols serve two purposes Access termination such as traditional serial protocols Routing LAN data along proper WAN paths The Vanguard WAN Adapter allows Vanguard LAN software to implement a more efficient layer of routing An overlay network that the LAN routing functions see is superimposed on top of the actual virtual circuit network and physical network i...

Page 21: ...anguard Router uses the X 25 mode for establishing virtual circuits over the WAN Connections to remote destinations can be disconnected at any time due to network failures and operator interventions The WAN Adapter recognizes when it receives a Clear Indication packet that a call is disconnected and notifies the LAN forwarders The WAN Adapter flushes its flow control queues of any saved packets If...

Page 22: ...ol specific information in the data packet that is needed at the remote end of the connection The following encapsulation methods are used Codex Proprietary encapsulation RFC 1294 Multiprotocol encapsulation RFC 877 IP encapsulation You can configure these encapsulation methods in the LAN Connection record ...

Page 23: ...m the packet by the receiving WAN Adapter The packet is passed to the router or bridge forwarder Two Byte Message Trailer This 2 byte field is used as follows Byte 1 Indicates the protocol type of the LAN forwarder such as SR STPE and IP The key Protocol IDs are IP 00 IPX 07 Motorola Codex SR 64 Motorola Codex STPE 65 and Motorola Codex TB 66 Byte 2 Indicates other packet specific information This...

Page 24: ... support the RFC1294 encapsulation of bridge data If a WAN Adapter LAN Connection record has the parameter LAN Forwarder Type of BRID or BROUT then the Encapsulation Type must be CODEX not RFC1294 otherwise bridge data will be lost If bridge traffic will be sent over an FRI port then the encapsulated bridge traffic can be sent over an Annex G station on the port Packet Format Figure 2 3 shows the ...

Page 25: ...tion at the X 25 layer Instead the Vanguard Router supports a configurable MTU size as specified in RFC1356 described below Otherwise the Motorola version complies with all RFC877 requirements Refer to the IP Interface Configuration Table menu for more information on MTU size RFC877 Limitations The following limitations apply to the use of RFC877 Bridging and other routed protocols are not support...

Page 26: ...877 encapsulation standards are virtually the same The Vanguard Router complies with RFC1356 encapsulation over X 25 with the following exceptions While RFC1356 specifies multi protocol support only the IP protocol is supported The NLPID encapsulation of RFC1356 is supported SNAP encapsulation is not ...

Page 27: ...nects with up to 254 branch sites over X 25 The encapsulation type should be Codex Proprietary due to the RFC limitation of supporting only a single call The LCONs can be connected in any combination of Router Interfaces On Demand or Permanent SVCs and Bridge Links Permanent SVCs only as long as the total capacity is not exceeded Figure 2 4 Maximum LAN Connections Over X 25 With Codex Proprietary ...

Page 28: ...r interfaces and bridge links as long as the total capacity is not exceeded Supported encapsulation types over Frame Relay are Codex Proprietary and RFC1294 1490 Figure 2 5 shows this example Figure 2 5 Maximum LAN Connections Over Frame Relay With Codex Proprietary or RFC1294 and Permanent SVCs Vanguard Terminal Server Cisco 254 Branches Vanguard IP Host Token Ring Vanguard Token Ring Branch 1 Br...

Page 29: ...irtual Circuits The Vanguard supports the following types of WAN virtual circuits Frame Relay DLCI Bypass Annex G X 25 over Frame Relay SVC X 25 SVC MX25 SVC XDLC SVC ISDN PPP Configuring the WAN Port To configure the WAN port refer to the Vanguard Basic Configuration Manual Part Number T0113 ...

Page 30: ...each virtual circuit is tied to a different Router Interface For WANView each Router Interface must be assigned a different IP Network or Subnetwork address Name Type Description WANView Point to Point LCONs The most common mechanism of routing between two Vanguard routers over a WAN link with a virtual circuit configured as a point to point LAN connection LCON The LCON is associated with a unique...

Page 31: ... Adapter Router Ethernet Note FRI Frame Relay Interface S Station 10 2 0 1 10 3 0 1 A B C 1 5 6 7 WAN Note Different Router Interfaces 5 6 and 7 are used Router Interfaces FRI Port 1 Network FRI 1 S 2 FRI 1 S 3 FRI 1 S 1 LCON 1 LCON 2 LCON 3 10 0 0 1 Router Node D WAN Adapter Router Ethernet Note FRI Frame Relay Interface S Station Note One Router Interface 5 is used Node A 10 0 0 2 10 0 0 3 Node ...

Page 32: ...rating with non Motorola routers it may not be possible to use WANView For interoperability with non Motorola routers use LANView Example WANView over Frame Relay Figure 2 8 illustrates an example of WANView over Frame Relay Figure 2 8 WANView over Frame Relay In this example there are two point to point connections One point to point connection is from Node 100 Router Interface 5 to Node 200 Rout...

Page 33: ...a single IP network level address This lets the WAN be treated as a logical LAN where all nodes on the logical LAN use the same IP network level address The LANView of WAN also applies to Router IPX addresses All WAN SVCs in a LAN Connection Group are considered to be on the same IPX Network Number In the discussions that follow a Network Address is the combination of the Network and Subnetwork Ad...

Page 34: ...Network Address per LAN Connection A router configured as LANView at the central site is able to operate with multiple Point to Point Views on the other end of the WAN link Advantages You can benefit most from LANView if you are already using a LANView in your backbone networks As shown in Figure 2 11 it is effortless to add several routers at branch sites with the same IP Network address if you a...

Page 35: ...encapsulation For example in an X 25 network one SVC can have encapsulation Type RFC877 while another is CODEX Mixed SVCs PVCs Each LAN Connection Group can support mixed types of SVCs as allowed by the network type You can mix permanent SVCs On Demand SVCs and Dial On Demand SVCs You can also have PVCs in the same LAN Connection Group as SVCs Parallel SVCs A Parallel SVC is an LCON configured as ...

Page 36: ...ot only a LAN Connection boot is required Configure a new LAN Connection and boot it into an existing LAN Connection Group Move a LAN Connection from one LAN Connection Group to another RIP Split Horizon On broadcast type networks RIP split horizon reduces the possibility of routing loops by blocking information about routes from being advertised out the interface from which it originated Since LA...

Page 37: ...ne IP Router Interface with address 10 0 0 4 which can reach any of the branches Nodes A to C via three SVCs tied to the same Router Interface for example Interface 5 This example shows that a LANView can be a mix of Permanent and On Demand SVCs Without LANView functionality this same network would require Node D to have three IP Router Interfaces each with a different IP network level address Wit...

Page 38: ...ace which can reach any of the other three nodes via three SVCs tied to this Router Interface Without LANView this same network would require Node 10000000 to have three IPX Router Interfaces each with a different IPX network address With LANView the same remote node connection uses only one IPX network address Figure 2 13 LANView for IPX Vanguard Cisco Vanguard Token Ring Vanguard Token Ring Vang...

Page 39: ...ween the branches At both the headquarters and the branches a single Router interface with IP Network address 10 0 0 0 is used Figure 2 14 LANView over Frame Relay Vanguard Cisco Vanguard Token Ring Vanguard Token Ring 10 0 0 4 Vanguard Node A Node B Node C 10 0 0 2 10 0 0 3 10 0 0 1 Node D IP Host Codex Prop Encaps or RFC1294 DLCI 1 DLCI 4 DLCI 2 DLCI 5 DLCI 3 Network 10 0 0 3 Codex Prop Encaps o...

Page 40: ...ion between the routers and other RFC877 compliant routers connectivity between the routers uses the CODEX encapsulation This demonstrates support for multiple encapsulations within the same LANView Figure 2 15 LANView Using Multiple Encapsulation Types Vanguard Vanguard Token Ring Vanguard Token Ring 10 0 0 1 Node A Node B Node C 10 0 0 2 10 0 0 3 10 0 0 4 Cisco RFC877 RFC877 RFC877 X 25 12 0 0 0...

Page 41: ... voice Why Is RTP UDP IP Header Compression Needed Packetized voice is encapsulated into IP packets before being transported over an IP network In encapsulating the packetized voice RTP UDP and IP header information is added to the packet to provide information on how the IP packet is to be the routed through the IP network This RTP UDP IP header information is typically 40 bytes in size This is a...

Page 42: ...ression of RTP UDP IP or UDP IP packets carried over PPP or Frame Relay WAN links Options for Header Compression The Vanguard products can support header compression in four different configurations Header compression can be enabled to Compress outgoing packets only incoming compressed packets are not recognized for decompression Decompress the incoming compressed packets only outgoing packets sen...

Page 43: ...is compressed before transmission of the WAN link it must be decompressed at the receiving end Each Vanguard supporting header compression has a compressor and decompressor function Figure 2 18 Vanguard Compression Decompression Function Compressor Decompressor Compressor Decompressor Vanguard Compression Function Vanguard Compression Function ...

Page 44: ...ressor list 2 The Vanguard compares the packet s source and destination UDP ports against a list of configured UDP port ranges on which header compression can be applied If either source or destination ports match the configuration the packet is considered for compression If the packet s source and destination UDP port Match the configured list the packet is checked against the negative cache Does...

Page 45: ...outer A RTP UDP IP header Voice Data Packet Router B Voice Data Packet 1 1st Packet RTP UDP IP header Voice Data Packet Compressed RTP UDP IP Header CID Voice Data Packet 2 2nd Packet RTP UDP IP header Voice Data Packet Compressed RTP UDP IP Header CID Voice Data Packet 3rd Packet Compressed RTP UDP IP Header CID Step Process 1 The RTP UDP IP header of the first packet is not compressed The first ...

Page 46: ...nds a CONTEXT_STATE packet to the compressor The CONTEXT_STATE packet contains the CID of the context which needs to be synchronized the sequence number of the last correctly received compressed packet When the compressor receives a CONTEXT STATE packet it sends the next packet with a full RTP UDP IP header The CONTEXT_STATE packet provides both synchronization and error recovery Configuring RTP U...

Page 47: ...Routers operate at the Network layer and therefore offer some flexibility in choosing several network level services How Vanguard Bridging Routers Work Vanguard bridging routers examine every packet on a network The source host builds a packet from the Application layer downward to the Physical layer and passes the packet over the network There can be several different values for the Data Link MAC...

Page 48: ...hin the bridge network Case 3 In case 3 a Broadcast Data Link address is used as described here The Vanguard node gives a copy of the packet frame to the bridge forwarder If Transparent Bridging is used the frame is forwarded along the spanning tree links so that a copy eventually reaches all networks If Source Route Bridging is used the frame is forwarded according to the RIF in the same way as f...

Page 49: ...and routers or bridging routers Stations S2 and S4 communicate with station S1 by bridging since nodes 2 and 4 provide only bridging For stations 2 and 4 to communicate with other remote stations the traffic is bridged to node 1 and from there it is routed to the destination Station S3 can be set up to either bridge or route to stations on LAN 1 but not to both simultaneously for example bridge to...

Page 50: ...style Flat addressing each address identifies a machine Hierarchical addressing each address identifies a network and a machine on the network Multiple directly connected physical networks can share a single network address Address attachment MAC addresses can be permanently assigned to hardware units IP addresses cannot be permanently assigned to the hardware IP subnet addresses cannot be permane...

Page 51: ...red to configure the Vanguard device to carry LAN traffic over a WAN as shown in Figure 3 1 Figure 3 1 Network Topology WAN LAN LAN Port Ethernet Token Ring WAN Port Frame Relay X 25 MX25 ISDN PPP XDLC Vanguard Router LAN Port 1 5 FRI Port LCON FRI Station LAN IP Forwarder Bridge Router WAN Adaptor WAN Port Router Interface Vanguard Router Vanguard Router WAN ...

Page 52: ...yer operation Later sections will highlight additional parameters you will need to configure for specific operation or applications Step Configure Menu 1 Configure the Node Record Configure Node 2 Configure the WAN Port The WAN Port may be one of the following Frame Relay X 25 MX 25 ISDN PPP XDLC Note Depending on the WAN Port you select you may need to configure other WAN records or parameters Re...

Page 53: ...ote Apple Talk can only be configured for point to point LCON WANView Set the LAN Connection Type parameter to Pt to Pt this parameter is configurable under Configure Configure LAN Connection Table OSPF Configure these additional parameters or table records to support OSPF routing IP Interface IP Parameters OSPF Routing Parameters OSPF Interface OSPF Area Parameter SoTCP Configure these additional...

Page 54: ...t IPX routing over a Novell network IPX Parameters IPX Interfaces IP Routing Configure these additional parameter or table records for routing in an IP network IP Interface IP Parameters For more information on other parameters and features available for IP Routing refer to the IP Routing Manual Part Number T0100 03 ...

Page 55: ...t WAN Router Interface 6 LCON 2 FRI 1S1 FRI 1S2 Node 100 Node 200 Node 300 Port 5 Port 1 Port 1 LAN LAN Port 5 Port 5 10 33 1 1 10 33 1 2 10 33 2 1 10 33 2 2 Step Menu Node 100 Node 200 Node 300 Configure the Node Record Configure Node Node Name Node 100 Node Address 100 Node Name Node 200 Node Address 200 Node Name Node 300 Node Address 300 Configure the WAN Port Configure Port Port Number 1 Port...

Page 56: ...ction Table Entry Number 1 Interface Number 5 LAN Forwarder Type ROUT LAN Connection Type PT to PT Entry Number 2 Interface Number 6 LAN Forwarder Type ROUT LAN Connection Type PT to PT Entry Number 1 Interface Number 5 LAN Forwarder Type ROUT LAN Connection Type PT to PT Autocall Mnemonic Call100 Maximum Number of Autocall Attempts 0 Remote Connection ID 1 Entry Number 1 Interface Number 5 LAN Fo...

Page 57: ...nguard Router and the important parameters that should be configured In this example Node 100 is configured to initiates calls to Node 200 and Node 300 Only one router interface is configured at Node 100 and the LAN Connection Type is set to GROUP Note Default values are used for parameters not specified in the table Figure 3 3 LANView Functional Diagram Group LCON LAN Port 1 5 FRI Port 1 LCON 1 L...

Page 58: ... Interface Number 5 LAN Forwarder Type ROUT LAN Connection Type Group Autocall Mnemonic Call200 Remote Connection ID 1 Entry Number 2 Interface Number 5 LAN Forwarder Type ROUT LAN Connection Type Group Autocall Mnemonic Call300 Remote Connection ID 1 Entry Number 1 Interface Number 5 LAN Forwarder Type ROUT LAN Connection Type PT to PT Entry Number 1 Interface Number 5 LAN Forwarder Type ROUT LAN...

Page 59: ...roduction The Configure LAN Connection menu provides access to the LAN Connection Table and LAN Connection Parameters records Figure 3 4 shows the Configure LAN Connection Menu Figure 3 4 Configure LAN Connection Menu Node Address Date Time Menu Configure LAN Connections Path LAN Connection Parameters LAN Connection Table ...

Page 60: ... Bridge links the number of WAN Bridge Links supported is 250 What You See in This Record Figure 3 5 shows the LAN Connection Parameters menu Figure 3 5 LAN Connection Parameters Menu Parameter The Maximum Number of LAN Connections parameter is described below Maximum Number of LAN Connections Node Address Date Time Menu Configure LAN Connections Path 1 LAN Connection Parameters Range 32 to 2000 d...

Page 61: ...AN Connection Type Router Interface Number Encapsulation Type Next Hop IP Address Next Hop IPX Node Number Autocall Mnemonic Autocall Timeout Maximum Number of Autocall Attempts Remote Connection ID Parallel SVCs Parallel SVC Trigger Mechanism Parallel SVC Threshold Parallel SVC Port On Demand Idle Timeout Broadcast LCON Queue Limit Billing Records Traffic Priority Protocol Priority Profiles Credi...

Page 62: ... the listed parameter LANView Configuration Matrix Parameter Displayed For ROUT LAN Forwarder Type For BRID LAN Forwarder Type For BROUT LAN Forwarder Type LAN Forwarder Type ROUT BRID BROUT Bridge Link Number X 5 to Maximum Configurable 5 to Maximum Configurable LAN Connection Type PT_to_PT GROUP X PT_to_PT GROUP Router Interface Number 5 to Maximum Configurable X 5 to Maximum Configurable Encaps...

Page 63: ...psulation Type is not RFC877 1 to 254 Appears if Autocall Mnemonic configured and Encapsulation Type is not RFC877 Parallel SVCs 0 to 1 Appears if Autocall Mnemonic configured and Encapsulation Type is not RFC1294 No prompt appears if LAN Connection Type is GROUP and Next Hop IP Address is 0 0 0 0 X 0 to 1 Appears if Autocall Mnemonic configured and Encapsulation Type is not RFC1294 No prompt appe...

Page 64: ...OCOL EXP AND PROTOCOL Protocol Priority Profiles 1 to 100 Appears if Traffic Priority is configured as LOW AND PROTOCOL MED AND PROTOCOL HIGH AND PROTOCOL or EXP AND PROTOCOL 1 to 100 Appears if Traffic Priority is configured as LOW AND PROTOCOL MED AND PROTOCOL HIGH AND PROTOCOL or EXP AND PROTOCOL 1 to 100 Appears if Traffic Priority is configured as LOW AND PROTOCOL MED AND PROTOCOL HIGH AND PR...

Page 65: ... PROTOCOL or EXP AND PROTOCOL 0 to 7 Appears if Traffic Priority is configured as LOW AND PROTOCOL MED AND PROTOCOL HIGH AND PROTOCOL or EXP AND PROTOCOL 0 to 7 Appears if Traffic Priority is configured as LOW AND PROTOCOL MED AND PROTOCOL HIGH AND PROTOCOL or EXP AND PROTOCOL LANView Configuration Matrix continued Parameter Displayed For ROUT LAN Forwarder Type For BRID LAN Forwarder Type For BRO...

Page 66: ... product Default 1 Description Specifies the entry number used to reference this table record The allowable range of values reflect the maximum number of LAN connections set in the LAN Connection Parameters menu LAN Forwarder Type Range ROUT BRID BROUT Default ROUT Description Specified if the LAN Connection is to pass bridged routed and or brouted traffic BRID Bridged LAN traffic is transported a...

Page 67: ...ars only with the LAN Forwarder Type BRID or BROUT Boot Type Changes to this parameter require a Table and Node Record boot LAN Connection Type Range PT_to_PT GROUP Default PT_to_PT Point to Point Description Specifies whether this LAN Connection defines a point to point connection across the WAN or is part of a group of LAN Connections If configured as GROUP multiple LAN Connections can use the s...

Page 68: ...T Boot Type Changes to this parameter require a Node Boot to take effect Encapsulation Type Range CODEX RFC 877 RFC 1294 if LAN Forwarder Type ROUT CODEX if LAN Forwarder Type BRID CODEX if LAN Forwarder Type BROUT Default CODEX Description Specifies the type of encapsulation used over this LAN connection Encapsulation types supported include CODEX Codex Proprietary Encapsulation RFC 877 1356 RFC ...

Page 69: ...psulation and mapped to a Frame Relay BYPASS station or Annex G circuit will result in an InvARP Request being sent For all other LAN connections a value of 0 0 0 0 causes this parameter to be ignored Guidelines Appears only if the LAN Connection type is configured as GROUP Next Hop IPX Node Number Range 1 to 12 hexadecimal digits Default 0 Description Specifies the IPX node number of the Router o...

Page 70: ...ion uses in an X 25 call Address must equal the address of the node to which the remote LAN is attached the LAN to which you want to bridge The LAN Connection Subaddress configured in the node record is appended to this address to form the complete called address of an X 25 call packet Autocall Timeout Range 5 to 255 Default 5 Description Interval in seconds between calling attempts when auto call...

Page 71: ...n be established to the remote destination Parallel SVCs are established when congestion thresholds are reached on active connections Boot Type Changes to this parameter require a Table and Node Record boot Guidelines Appears only if LAN Forwarder Type is configured as ROUT BROUT An Autocall Mnemonic name has been specified Encapsulation Type is either RFC 877 or CODEX Parallel SVC Trigger Mechani...

Page 72: ...ation Type is RFC 877 and parallel SVC Trigger Mechanism is set to THRESHOLD Parallel SVC Port Range 0 to 32 alphanumeric characters Use the space character to blank the field Default blank Description Specifies the port over which the Parallel SVC is established Allowable values can take one of two forms The first is a port identifier string For example to send the Parallel SVC over port 8 a Ente...

Page 73: ...eout Range 0 to 65535 seconds Default 90 seconds Description Specifies the amount of time in seconds the SVC remains connected without passing data before the SVC is deactivated Any positive value deactivates the On Demand SVC as stated earlier in this document A zero Idle Timer entry allows the SVC to come up as On Demand but when there is no more data to send the link remains active and function...

Page 74: ...pecifies the Traffic Priority level of this LAN Connection and also enables Protocol Priority depending on the option configured LOW One Low Priority packet is sent for every Traffic Priority Step number of Medium priority packets MED One Medium priority packet is sent for every Traffic Priority Step number of High priority packets HIGH High is the first level of priority packets sent if no expedi...

Page 75: ...he profiles are specified indicates the order of priority among the profiles These profiles are used for classifying and servicing the traffic flows depending on the class and bandwidth assignments configured Credit Cycle Range 1 to 200 Default 4 Description Specifies the granularity of traffic forwarding in KBytes This is the block of byte transfer within which each class has its share depending ...

Page 76: ...acket will be compared against the configured IP precedence value If the values match then the incoming packet is classified as voice class and receives FAST PATH service RTP UDP IP Header Compression Default DISABLE Range DISABLE TRANSMIT RECEIVE DUPLEX AUTODETECT Description Enables or disables header compression on this LCON DISABLE disables header compression TRANSMIT indicates that compressed...

Page 77: ...ion allows both RTP UDP IP and UDP IP header compression If this is configured all packets are compressed Note Changes to this parameter causes the context list to be refreshed UDP Port Ranges Default 1025 65535 Range 1025 to 65535 Description Specifies a range of UDP ports Header compression applies to packets received or transmitted on this range of UDP ports Specify the parameter as individual ...

Page 78: ... Description Specifies the number of session to be compressed Changes to this parameter causes the context list to be refreshed Each compression session that exists between the compressor and decompressor is uniquely identified by a session context identifier CID The CID can be 8 or 16 bit When the configured value exceeds 255 a 16 bit CID Full Header Refresh Counter Default 0 Range 0 to 1000 Desc...

Page 79: ...AN Connection Statistics 4 1 Chapter 4 LAN Connection Statistics Overview Introduction This chapter describes how to monitor the performance and operation of the Vanguard using LAN Connection statistics ...

Page 80: ...tistics options Node Address Date Time Menu Lan Connection Statistics Path LAN Connection Stats Connection Summary Stats RTP UDP IP Compression Stats LAN Connection Group Statistics Reset LAN Connection Stats Menu Option Displays LAN Connection Stats Detailed transmit and receive statistics for primary and Parallel SVCs LAN Connection Summary Stats An overall picture of the LANView indicating whic...

Page 81: ...Connected Router Remote Address 80094 Next Hop IP Address 134 33 200 4 Next Hop IPX Node Number 15 Number of auto call attempts 1 Last clear cause code Last clear diagnostic code Packet Summary Transmit Receive Data 221 403 Call Request 1 0 Call Accept 0 1 Clear Request 0 0 Clear Confirm 0 0 Reset Request 0 0 Reset Confirm 0 0 Press any key to continue ESC to exit Last Statistics Reset Transmit Da...

Page 82: ... line on page three applies to primary SVCs Information below the dashed line applies to any Parallel SVCs Node Address Date Time Detailed LAN Connection Statistics LCON 1 Page 3 of 3 Outbound TX Pck Avg TX TX Bytes RX Pck Avg RX Channel Count Pck Size Outstanding Count Pck Size FRI 3S1 1 9 18 1 6 31 X25 4 1 100 64 2000 150 56 Press any key to continue ESC to exit ...

Page 83: ...ection for connected SVCs The possible states are Blank for PVCs blank for disconnected SVCs No Mnemonic for autocall SVCs whose mnemonic does not exist in the Mnemonic Table Max Attempts for Autocall SVCs that reached their autocall maximum attempts count Next Hop IP Address Specifies the IP address of the next destination in a path if the LCON is configured as GROUP that is if it is part of a LA...

Page 84: ...atistics reset Resetting the statistics does not clear the last call information from the detailed port statistics screen This information is cleared only on a node boot Transmit Data Summary Information on the transmission of packets and those awaiting transmission to the WAN Totals are provided for the number of packets transmitted the average transmitted packet size in bytes and the current and...

Page 85: ...7 T0100 01 Revision B Release 5 4 Using LAN Connection Statistics Tx Bytes Outstand ing Total number of transmit bytes outstanding Rx Pck Count Number of packets received Avg Rx Pck Size Average receive packet size Term Indicates ...

Page 86: ...n Remote Connection Link Type Destination 1 Waiting 5 Configured SVC Press any key to continue ESC to exit Term Indicates LAN Connection LAN Connection entry number and current state of a configured LAN Connection The possible states are Not Properly Configured Not Connected Calling Awaiting Call Awaiting Data Connected Waiting for Clear Confirmation Disabled Bridge Link WAN Bridge Link number ass...

Page 87: ...tics screens Figure 4 6 RTP UDP IP Compression Statistics Screen Page 1 of 2 Node Address Date Time RTP UDP IP Compression Statistics Page 1 of 2 LAN Connection Entry 3 Transmission Type DUPLEX Compression Type RTP Packets Received for Compression 0 Compressed Packets Transmitted 0 Packets Receiver Received 0 Compressed Packets Received 0 Active Transmittor Contexts 0 Active Receivers Contexts 0 B...

Page 88: ... the configuration are considered Compressed Packets Transmitted Total number of compressed packets transmitted This includes only COMPRESSED_RTP COMPRESSED_UDP Packets Receiver Received Total number of packets the receiver compressor module received This includes FULL_HEADER packets and COMPRESSED packets Compressed Packets Received Total number of compressed packets received Active Transmitter C...

Page 89: ...sum Errors detected by receiver Number of UDP checksum errors detected by the receiver decompressor Synchronization Lost packets received Number of CONTEXT_STATE packets received to re synchronize the decompressor context Synchronization Lost packets transmitted Number of CONTEXT_STATE packets transmitted to re synchronize the compressor context Term Indicates ...

Page 90: ...e this information a statistics screen appears displaying a single line for each next hop destination in the LAN Connection Group What You See In This Screen Figure 4 8 shows an example LAN Connection Group Statistics screen Figure 4 8 LAN Connection Group Statistics Screen Example Node Address Date Time LAN Connection Group Statistics Page 1 of 1 This LAN Connection Group is tied to Router Interf...

Page 91: ...ng Vanguard functionality you can press the space bar to display multiple screens of this information Screens can be redisplayed using Ctrl R You can also escape out of the statistics command using ESC or Ctrl T Term Indicates LAN Connection The activity state of LAN Connections This can be Idle Connected or Calling Next Hop Address An IP address or IPX node number or both Remote Destination An X ...

Page 92: ......

Page 93: ... 22 LANView using multiple encapsulation types 2 24 LANView with Frame Relay 2 23 F Flow Control WAN Adaptor 2 5 G Group LCON 2 14 Grouping LAN Connections 2 19 MTU Size 2 19 I Interfaces Ethernet 1 3 Token Ring 1 3 IP Applications Ware protocol supported 1 2 IP Forwarder 2 2 2 3 IP routing features supported 1 5 IPX 1 6 L LAN connection using LCON 3 12 LAN Connection Group 2 17 2 19 Booting 2 20 ...

Page 94: ...terface 2 17 LANView 2 14 2 17 WANview 2 18 what is it 2 3 routing 1 4 R Continued RTP UDP IP header compression 2 25 configuring 2 30 Context Identifier 2 29 voice 2 25 S SLIM IP 1 6 SoTCP 1 6 Statistics Detailed LAN Connection Statistics Screen 4 3 Statistics menu LAN Connection Summary Statistics 4 8 T Token Ring 802 5 1 3 U UDP 2 25 User Datagram Protocol see UDP V Vanguard Router Model functi...

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