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Cisco IOS Software Releases 11.3

Token Ring Route Switch Module

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Table Of Contents

Token Ring VLAN Support on the Route Switch Module

Feature Summary

Token Ring VLANs

Token Ring VLAN Support on the RSM

Related Documents

Platforms

Prerequisites

Configuration Tasks

Configure IP Routing

Configure IPX Routing

Configure Source-Route Bridging

Configure Source-Route Transparent Bridging

Configure Source-Route Translational Bridging

Configure Automatic Spanning Tree

Monitor Statistics

Configuration Examples

IP Routing Source-Routed Frames between a TrBRF VLAN and a VIP2 Token Ring Interface Example

IP Routing Source-Routed Frames between a TrBRF VLAN and a VIP2 Ethernet Interface Example

IP Routing Source-Routed Frames between TrBRF VLANs Example

IP Routing Source-Routed Frames between a TrBRF VLAN and an Ethernet VLAN Example

IP Routing Non-Source-Routed Frames between a TrBRF VLAN and a VIP2 Token Ring Interface Example

IP Routing Non-Source-Routed Frames between a TrBRF VLAN and a VIP2 Ethernet Interface Example

IP Routing Non-Source-Routed Frames between TrBRF VLANs

IP Routing Non-Source-Routed Frames between a TrBRF VLAN and an Ethernet VLAN Example

SRB Between a TrBRF VLAN and VIP2 Token Ring Interface Example

SRB Between TrBRF VLANs Example

Transparent Bridging between a TrBRF VLAN and a VIP2 Token Ring Interface Example

SR/TLB between a TrBRF VLAN and a VIP2 Ethernet Interface Example

SR/TLB between a TrBRF VLAN and Ethernet VLAN Example

DLSw+ Example

APPN Example

Command Reference

clear drip counters

interface vlan

multiring trcrf-vlan

show drip

source-bridge trcrf-vlan

Debug Commands

debug drip event

debug drip packet


Token Ring VLAN Support on the Route Switch Module

Feature Summary

The Token Ring VLAN support on the RSM adds the capability to do multi-protocol routing and bridging for Token Ring VLANs on the RSM. The RSM can be used standalone to do interVLAN routing, or it can be paired with a Catalyst VIP2 to provide external network connections with the same port adapters used on Cisco 7500 series routers. The RSM/VIP2 combination provides routing between VLANs and Catalyst VIP2 port adapters. A complete description of the RSM can be found in the Catalyst 5000 Series Route Switch Module Installation and Configuration Note and the Route Switch Module Catalyst VIP2-15 and VIP2-40 Installation and Configuration Note.

The Token Ring VLAN support on the RSM adds the following functionality to the Catalyst 5000 switch:

•IP routing for source-routed and non-source-routed frames between Token Ring (TrBRF) and/or Ethernet VLANs and VIP2 interfaces

•IPX routing for source-routed and non-source-routed frames between Token Ring (TrBRF) and/or Ethernet VLANs and VIP2 interfaces

•Source-route bridging (SRB) between Token Ring (TrBRF) VLANs and VIP2 interfaces

•Source-route translational bridging (SR/TLB) between Token Ring (TrBRF) VLANs and Ethernet VLANs and VIP2 interfaces

•Source-route transparent bridging (SRT) between Token Ring (TrBRF) VLANs and SRT-capable VLANs and VIP2 interfaces

Both APPN and DLSw+ are supported for Token Ring VLANS on the RSM. However, RSRB is not supported on the RSM.

For information on how Token Ring VLANs are implemented on switches, refer to the Catalyst Token Ring Switching Implementation Guide, the Catalyst 5000 Series Token Ring Configuration Notes, the Catalyst 3900 Token Ring Switching User Guide, and the Catalyst 3920 Token Ring Switching User Guide.

Token Ring VLANs

A VLAN is essentially a broadcast domain. In transparent bridging, there is only one type of broadcast frame and, therefore, only one level of broadcast domain and one level of VLAN. In source routing, however, there are 2 types of broadcast frames:

•Those that are confined to a single ring

•Those that traverse the bridged domain

Therefore, there are two levels of VLANs in a Token Ring switched network.

The first level is the Token Ring Concentrator Relay Function (TrCRF). At this level, the VLAN is a logical ring and, as such, is assigned a ring number. On a Token Ring switch, the logical ring (TrCRF) contains one or more physical ports. Source Route Switching (SRS) is used to forward frames within a TrCRF based on MAC address or Route Descriptor. On an RSM, a logical ring (TrCRF) can be defined that does not contain any physical ports, but rather is used only in processing source-routed traffic to terminate the RIF.

The second level of VLAN is the Token Ring Bridge Relay Function (TrBRF). This is the parent VLAN to which TrCRF VLANs are assigned. At this level, the VLAN is a logical bridge and, as such, is assigned a bridge number. The TrBRF is responsible for forwarding frames between groups of ports with the same ring number (TrCRFs) via either SRB or SRT.

depicts the relationship between TrCRF and TrBRF VLANS.

Figure 1 Token Ring VLAN Support on the RSM

Token Ring VLAN Support on the RSM

This section describes the basic operation of the RSM as it pertains to Token Ring VLANS. For a complete functional description of the RSM, refer to the Catalyst 5000 Series RSM Installation and Configuration Note.

The RSM is a router module running Cisco IOS router software that directly interfaces (plugs into) the Catalyst switch backplane. From the Token Ring VLAN perspective, the interface to the RSM is at the Token Ring bridged network (TrBRF) level. With the RSM, it is possible to route or bridge between separate Token Ring and Ethernet domains.

When routing or bridging between TrBRF VLANs that are defined as source-route bridging domains, it is necessary to create a logical ring on the RSM for proper RIF processing. This logical ring is defined as a TrCRF VLAN that does not contain any external Token Ring switch ports. illustrates the logical view of IP routing between two source-route bridged VLANs on the RSM. In this view, the RSM appears to have an interface to both ring 100 and ring 110.

Figure 2 Logical View of VLAN Support on the RSM

Related Documents

For related information on this feature, see the following documents:

•Bridging and IBM Networking Configuration Guide

•Bridging and IBM Command Reference

•Catalyst 5000 Series RSM Installation and Configuration Note

•Catalyst Token Ring Switching Implementation Guide

•Catalyst 5000 Series Token Ring Configuration Notes

•Catalyst 3900 Token Ring Switching User Guide

•Catalyst 3920 Token Ring Switching User Guide.

•Catalyst 5000 Series Route Switch Module Installation and Configuration Note

•Route Switch Module Catalyst VIP2-15

•Release Notes for Catalyst 5000 Series RSM/VIP2 Cisco IOS 11.3T Software Releases

•VIP2-40 Installation and Configuration Note

Platforms

The Token Ring RSM feature is supported on the RSM in the Catalyst 5000 platform. Support for the Token Ring RSM feature was first introduced in the Cisco IOS 11.3(6)T. The Token Ring RSM feature is supported on all RSM IOS 11.3(6)T software release images. A list of the supported Cisco IOS Releases and software images are located in the "Release Notes for Catalyst 5000 Series RSM/VIP2 Cisco IOS 11.3T Software Releases" publication.

Prerequisites

Before you configure bridging or routing for Token Ring VLAN interfaces in the RSM, configure the VLANs on the Supervisor engine module.

To configure a VLAN on the Supervisor engine module, use the following command in privileged mode:

Command
Purpose

set vlan vlan_num [name name] [state {active | suspend}] [mtu mtu] ring ring_number parent vlan_num [mode {srt | srb}] [backupcrf {off | on}] [aremaxhop hopcount] [stemaxhop hopcount]

Configure a TrCRF or TrBRF on the Supervisor engine module.


Configuration Tasks

To configure and monitor Token Ring VLAN support on the RSM, perform one or more of the following tasks:

•Configure IP Routing

•Configure IPX Routing

•Configure Source-Route Bridging

•Configure Source-Route Transparent Bridging

•Configure Source-Route Translational Bridging

•Monitor Statistics

Note   For information on configuring APPN or DLSW+, refer to the chapters in the Bridging and IBM Networking Configuration Guide and Bridging and IBM Command Reference.

Configure IP Routing

The IP routing for Token Ring VLANs feature extends IP routing capabilities to include support for routing IP frame types in Token Ring VLAN configurations. IP can be routed between:

•TrBRF VLANs

•TrBRFs and the VIP2

•TrBRFs and Ethernet VLANs

To configure IP routing on an RSM, use the following commands, beginning in global configuration mode: 

Step
Command
Purpose

1

ip routing

Enable IP routing on the RSM.

2

interface vlan vlanid type [trbrf | ethernet]

Configure a Token Ring or Ethernet interface on the RSM.

3

ip address ip-address mask

Set a primary IP address for an interface.


You can configure an RSM to route source-routed traffic by creating a "pseudo-ring" to terminate the RIF path on a ring and by enabling the collection and use of RIF information.

To route source-routed traffic, use the following additional commands in interface configuration mode: 

 
Command
Purpose

1

multiring trcrf-vlan vlanid ring ring-number

Create a pseudo-ring to terminate the RIF and assign it to a VLAN.

2

multiring {protocol-keyword [all-routes | spanning | all | other]}

Enable collection and use of RIF information with routed protocols.


Configure IPX Routing

The IPX Routing support for Token Ring VLANs extends Novell NetWare routing capabilities to include support for routing IPX on Token Ring VLAN interfaces, as well as Ethernet VLAN interfaces. IPX can be routed between:

•TrBRF VLANs

•TrBRFs and the VIP2

•TrBRFs and Ethernet VLANs

Users with Novell NetWare environments can configure either SAP or SNAP encapsulations to be routed across VLAN boundaries.

To configure Cisco IOS software to route IPX on an RSM with connected Token Ring VLANs, use the following commands, beginning in global configuration mode:

Step
Command
Purpose

1

ipx routing [node]

Enable IPX routing globally.

2

interface vlan vlanid type [trbrf | ethernet]

Configure a Token Ring or Ethernet interface on the RSM.

3

ipx encapsulation encapsulation type

Specify the IPX encapsulation.

4

ipx network network number

Specify the IPX network.


Note   The default IPX encapsulation format for Token Ring in Cisco IOS is SAP. Therefore, you only need to explicitly configure the IPX encapsulation type if your Token Ring network requires SNAP encapsulation instead of SAP.

When routing source-routed traffic for specific VLANs, use the following additional commands in interface configuration mode: 

Step
Command
Purpose

1

multiring trcrf-vlan vlanid ring ring-number

Create a pseudo-ring to terminate the RIF and assign it to a VLAN.

2

multiring {protocol-keyword [all-routes | spanning | all | other]}

Enable collection and use of RIF information with routed protocols.


Configure Source-Route Bridging

To configure source-route bridging on the RSM, use the following commands, starting in global configuration mode:

Step
Command
Purpose

1

source-bridge ring-group vring-num

Configure a virtual ring for the RSM.

2

interface vlan vlanid type [trbrf | ethernet]

Configure a Token Ring or Ethernet interface on the RSM.

3

source-bridge trcrf-vlan vlanid ring-group ring-number

Attach a TrCRF VLAN identifier to the RSM's virtual ring.


Configure Source-Route Transparent Bridging

To configure transparent bridging on the RSM, use the following command, starting in global configuration mode:

Step
Command
Purpose

1

interface vlan vlanid type [trbrf | ethernet]

Configure a Token Ring or Ethernet interface on the RSM.

2

bridge-group bridge-group number

Specify the bridge group to which the interface belongs.


Configure Source-Route Translational Bridging

To configure source-route translational bridging on the RSM, use the following commands, starting in global configuration mode:

Step
Command
Purpose

1

source-bridge ring-group vring-num

Configure a virtual ring for the RSM.

2

source-bridge transparent ring-group pseudo-ring bridge-number tb-group [oui]

Enable bridging between transparent bridging and source-route bridging.

3

interface vlan vlanid type [trbrf | ethernet]

Configure a Token Ring or Ethernet interface on the RSM.

4

source-bridge trcrf-vlan vlanid ring-group ring-number

Assign a VLAN ID to the RSM's virtual ring.


Note   For a complete description of SR/TLB, including configuring translation compatibility with IBM 8209 bridges and configuring Token Ring LLC2 to Ethernet Type II (0x80d5) and Token Ring LLC2 to Ethernet 802.3 LLC2 (standard) translations, please refer to the "Configuring Source-Route Bridging" and "Source-Route Bridging Commands" chapters in the Bridging and IBM Networking Configuration Guide and Bridging and IBM Command Reference.

Configure Automatic Spanning Tree

The automatic spanning-tree function supports automatic resolution of spanning trees in SRB networks, which provides a single path for spanning explorer frames to traverse from a given node in the network to another. Spanning explorer frames have a single-route broadcast indicator set in the routing information field. Port identifiers consist of ring numbers and bridge numbers associated with the ports. The spanning-tree algorithm for SRB does not support Topology Change Notification Bridge Protocol Data Unit (BPDU).

Although the automatic spanning-tree function can be configured with Source-Route Translational Bridging (SR/TLB), the SRB domain and transparent bridging domain have separate spanning trees. Each Token Ring interface can belong to only one spanning tree. Only one bridge group can run the automatic spanning-tree function at a time.

To create a bridge group that runs an automatic spanning-tree function compatible with the IBM SRB spanning-tree implementation, use the following command in global configuration mode:

Command
Purpose

bridge bridge-group protocol ibm

Create a bridge group that runs the automatic spanning-tree function.


To enable the automatic spanning-tree function for a specified group of bridged interfaces in SRB or SR/TLB, use the following command in interface configuration mode:

Command
Purpose

source-bridge spanning bridge-group

Enable the automatic spanning-tree function on a group of bridged interfaces.


Monitor Statistics

You can collect, clear, and display statistical information about the network.

The Duplicate Ring Protocol (DRiP) runs on Cisco routers and switches that support switched VLAN networking and is used to identify active Token Ring VLANs (TrCRFs).

DRiP maintains the status of TrCRFs and uses this information to determine whether there are multiple TrCRFs active in a TrBRF.

DRiP information is used for the following:

•All-routes explorer filtering

DRiP information is used in conjunction with the local configuration to determine which of the TrCRFs configured within a TrBRF have active ports. This information is used on the base switch to correctly filter all-routes explorers and on the RSM to discard AREs that have already been on an attached ring.

•Detecting the configuration of duplicate TrCRFs across routers and switches

DRiP information is used in conjunction with the local configuration information to determine which TrCRFs are already active on the switches. If a TrCRF is enabled on more than one switch or router, the ports associated with the TrCRF are disabled on all switches. The RSM will not disable the internal ring used for processing source-routed traffic. Instead, the RSM generates the following error message to indicate that two identical TrCRFs exist: 

DRIP conflict with CRF <vlan-id>

To show or clear DRiP or VLAN statistics, use one or all the following command in privileged EXEC mode:

Command
Purpose

clear drip counters

Clear DRiP counters.

show drip

Display DRiP information.


Note   When DRiP counters are cleared, the counter is reset to 0. Incrementing of DRiP counters indicates that the router is receiving packets across the TrBRF.

Configuration Examples

The following sections provide RSM and Catalyst 5000 switch configuration examples:

•IP Routing Source-Routed Frames between a TrBRF VLAN and a VIP2 Token Ring Interface Example

•IP Routing Source-Routed Frames between a TrBRF VLAN and a VIP2 Ethernet Interface Example

•IP Routing Source-Routed Frames between TrBRF VLANs Example

•IP Routing Source-Routed Frames between a TrBRF VLAN and an Ethernet VLAN Example

•IP Routing Non-Source-Routed Frames between a TrBRF VLAN and a VIP2 Token Ring Interface Example

•IP Routing Non-Source-Routed Frames between a TrBRF VLAN and a VIP2 Ethernet Interface Example

•IP Routing Non-Source-Routed Frames between TrBRF VLANs

•IP Routing Non-Source-Routed Frames between a TrBRF VLAN and an Ethernet VLAN Example

•SRB Between TrBRF VLANs Example

•SRB Between a TrBRF VLAN and VIP2 Token Ring Interface Example

•Transparent Bridging between a TrBRF VLAN and a VIP2 Token Ring Interface Example

•SR/TLB between a TrBRF VLAN and a VIP2 Ethernet Interface Example

•SR/TLB between a TrBRF VLAN and Ethernet VLAN Example

•DLSw+ Example

•APPN Example

IP Routing Source-Routed Frames between a TrBRF VLAN and a VIP2 Token Ring Interface Example

Following is the configuration for the RSM as shown in : 

interface TokenRing 3/1

 ip address 4.4.4.1 255.255.255.0

!

interface vlan998 type trbrf

 ip address 5.5.5.1 255.255.255.0

 multiring trcrf-vlan 200 ring 100

 multiring ip

Figure 3 IP Routing Source-Routed Frames between a TrBRF VLAN and a VIP2 Token Ring Interface

The following is the configuration for the Catalyst 5000 switch with an Ethernet module in slot 2 and a Token Ring switch module in slot 5. In this configuration, the Token Ring port 5/1 is assigned with the TrCRF VLAN 201. 

#vtp

set vtp domain trrsm

set vtp mode server

set vtp v2 enable

#drip

set tokenring reduction enable

set tokenring distrib-crf disable

#vlans

set vlan 998 type trbrf bridge 0xd stp ibm

set vlan 200 type trcrf parent 998 ring 0x64 mode srb

set vlan 201 type trcrf parent 998 ring 0x65 mode srb

#add token port to trcrf 201

set vlan 201 5/1

Because the VLANs are defined on a per port basis, endstations connected to ports that belong to the same VLAN should belong to the same IP subnetwork.

IP Routing Source-Routed Frames between a TrBRF VLAN and a VIP2 Ethernet Interface Example

Following is the configuration for the RSM as shown in : 

interface Ethernet 2/2

 ip address 4.4.4.1 255.255.255.0

!

interface vlan998 type trbrf

 ip address 5.5.5.1 255.255.255.0

 multiring trcrf-vlan 200 ring 100

 multiring all

Figure 4 IP Routing Source-Routed Frames between a TrBRF VLAN and a VIP2 Ethernet Interface

The following is the configuration for the Catalyst 5000 switch with an Ethernet module in slot 2 and a Token Ring switch module in slot 5. In this configuration, the Token Ring port 5/1 is assigned with TrCRF VLAN 201. 

#vtp

set vtp domain trrsm

set vtp mode server

set vtp v2 enable

#drip

set tokenring reduction enable

set tokenring distrib-crf disable

#vlans

set vlan 998 type trbrf bridge 0xd stp ibm

set vlan 200 type trcrf parent 998 ring 0x64 mode srb

set vlan 201 type trcrf parent 998 ring 0x65 mode srb

#add token ring port to trcrf 201

set vlan 201 5/1

Because the VLANs are defined on a per port basis, endstations connected to ports that belong to the same VLAN should belong to the same IP subnetwork.

IP Routing Source-Routed Frames between TrBRF VLANs Example

Following is the configuration for the RSM as shown in : 

interface vlan998 type trbrf

 ip address 5.5.5.1 255.255.255.0

 multiring trcrf-vlan 200 ring 100

 multiring all

interface vlan999 type trbrf

 ip address 6.6.6.1 255.255.255.0

 multiring trcrf-vlan 201 ring 101

 multiring all

Figure 5 IP Routing Source-Routed Frames between TrBRF VLANs

The following is the configuration for the Catalyst 5000 switch with an Ethernet module in slot 2 and a Token Ring switch module in slot 5. In this configuration, the Token Ring port 5/1 is assigned with TrCRF VLAN 300 and the Token Ring port 5/2 is assigned with TrCRF VLAN 301. 

#vtp

set vtp domain trrsm

set vtp mode server

set vtp v2 enable

#drip

set tokenring reduction enable

set tokenring distrib-crf disable

#vlans

set vlan 998 type trbrf bridge 0xd stp ibm

set vlan 200 type trcrf parent 998 ring 0x64 mode srb

set vlan 300 type trcrf parent 998 ring 0x66 mode srb

set vlan 999 type trbrf bridge 0xe stp ibm

set vlan 201 type trcrf parent 999 ring 0x65 mode srb

set vlan 301 type trcrf parent 999 ring 0x67 mode srb

#add token port to trcrfs

set vlan 300 5/1

set vlan 301 5/2

Because the VLANs are defined on a per port basis, endstations connected to ports that belong to the same VLAN should belong to the same IP subnetwork.

IP Routing Source-Routed Frames between a TrBRF VLAN and an Ethernet VLAN Example

Following is the configuration for the RSM as shown in : 

interface vlan998 type trbrf

 ip address 5.5.5.1 255.255.255.0

 multiring trcrf-vlan 200 ring 100

 multiring all

interface vlan500 type ethernet

 ip address 6.6.6.1 255.255.255.0

Figure 6 IP Routing Source-Routed Frames between a TrBRF VLAN and an Ethernet VLAN

The following is the configuration for the Catalyst 5000 switch with an Ethernet module in slot 2 and a Token Ring switch module in slot 5. In this configuration, the Token Ring port 5/1 is assigned with TrCRF VLAN 300 and the Ethernet port 2/1 is assigned with VLAN 500. 

#vtp

set vtp domain trrsm

set vtp mode server

set vtp v2 enable

#drip

set tokenring reduction enable

set tokenring distrib-crf disable

#vlans

set vlan 998 type trbrf bridge 0xd stp ibm

set vlan 200 type trcrf parent 998 ring 0x64 mode srb

set vlan 300 type trcrf parent 998 ring 0x66 mode srb

#add token port to trcrf 300

set vlan 300 5/1

#add ether port to 500

set vlan 500 2/1

Because the VLANs are defined on a per port basis, endstations connected to ports that belong to the same VLAN should belong to the same IP subnetwork.

IP Routing Non-Source-Routed Frames between a TrBRF VLAN and a VIP2 Token Ring Interface Example

Following is the configuration for the RSM as shown in : 

interface TokenRing 3/1

 ip address 4.4.4.1 255.255.255.0

!

interface vlan998 type trbrf

 ip address 5.5.5.1 255.255.255.0

Note   The multiring command is not needed in this configuration since these are non-source-routed frames.

Figure 7 IP Routing Non-Source-Routed Frames between a TrBRF VLAN and a VIP2 Token Ring Interface

The following is the configuration for the Catalyst 5000 switch with an Ethernet module in slot 2 and a Token Ring switch module in slot 5. In this configuration, the Token Ring port 5/1 is assigned with the TrCRF VLAN 201. 

#vtp

set vtp domain trrsm

set vtp mode server

set vtp v2 enable

#drip

set tokenring reduction enable

set tokenring distrib-crf disable

#vlans

set vlan 998 type trbrf bridge 0xd stp ieee

set vlan 201 type trcrf parent 998 ring 0x65 mode srt

#add token port to trcrf 201

set vlan 201 5/1

Because the VLANs are defined on a per port basis, endstations connected to ports that belong to the same VLAN should belong to the same IP subnetwork.

IP Routing Non-Source-Routed Frames between a TrBRF VLAN and a VIP2 Ethernet Interface Example

Following is the configuration for the RSM as shown in : 

interface Ethernet 2/2

 ip address 4.4.4.1 255.255.255.0

!

interface vlan998 type trbrf

 ip address 5.5.5.1 255.255.255.0

Note    The multiring command is not needed in this configuration since these are non-source-routed frames.

Figure 8 IP Routing Non-Source-Routed Frames between a TrBRF VLAN and a VIP2 Ethernet Interface

The following is the configuration for the Catalyst 5000 switch with an Ethernet module in slot 2 and a Token Ring switch module in slot 5. In this configuration, the Token Ring port 5/1 is assigned with TrCRF VLAN 201. 

#vtp

set vtp domain trrsm

set vtp mode server

set vtp v2 enable

#drip

set tokenring reduction enable

set tokenring distrib-crf disable

#vlans

set vlan 998 type trbrf bridge 0xd stp ieee

set vlan 201 type trcrf parent 998 ring 0x65 mode srt

#add token ring port to trcrf 201

set vlan 201 5/1

Because the VLANs are defined on a per port basis, endstations connected to ports that belong to the same VLAN should belong to the same IP subnetwork.

IP Routing Non-Source-Routed Frames between TrBRF VLANs

Following is the configuration for the RSM as shown in : 

interface vlan998 type trbrf

 ip address 5.5.5.1 255.255.255.0

interface vlan999 type trbrf

 ip address 6.6.6.1 255.255.255.0

Note   The multiring command is not needed in this configuration since these are non-source-routed frames.

Figure 9 IP Routing Non-Source-Routed Frames between TrBRF VLANs

The following is the configuration for the Catalyst 5000 switch with an Ethernet module in slot 2 and a Token Ring switch module in slot 5. In this configuration, the Token Ring port 5/1 is assigned with VLAN 300 and the Token Ring port 5/2 is assigned with VLAN 301. 

#vtp

set vtp domain trrsm

set vtp mode server

set vtp v2 enable

#drip

set tokenring reduction enable

set tokenring distrib-crf disable

#vlans

set vlan 998 type trbrf bridge 0xd stp ieee

set vlan 300 type trcrf parent 998 ring 0x66 mode srt

set vlan 999 type trbrf bridge 0xd stp ieee

set vlan 301 type trcrf parent 999 ring 0x67 mode srt

#add token port to trcrfs

set vlan 300 5/1

set vlan 301 5/2

Because the VLANs are defined on a per port basis, endstations connected to ports that belong to the same VLAN should belong to the same IP subnetwork.

IP Routing Non-Source-Routed Frames between a TrBRF VLAN and an Ethernet VLAN Example

Following is the configuration for the RSM as shown in : 

interface vlan998 type trbrf

 ip address 5.5.5.1 255.255.255.0

!

interface vlan500 type ethernet

 ip address 6.6.6.1 255.255.255.0

Note   The multiring command is not needed in this configuration since these are non-source-routed frames.

Figure 10 IP Routing Non-Source-Routed Frames between a TrBRF VLAN and an Ethernet VLAN

The following is the configuration for the Catalyst 5000 switch with an Ethernet module in slot 2 and a Token Ring switch module in slot 5. In this configuration, the Token Ring port 5/1 is assigned with TrCRF VLAN 300 and the Ethernet port 2/1 is assigned with VLAN 500. 

#vtp

set vtp domain trrsm

set vtp mode server

set vtp v2 enable

#drip

set tokenring reduction enable

set tokenring distrib-crf disable

#vlans

set vlan 998 type trbrf bridge 0xd stp ieee

set vlan 300 type trcrf parent 998 ring 0x66 mode srt

#add token port to trcrf 300

set vlan 300 5/1

#add ether port to 500

set vlan 500 2/1

Because the VLANs are defined on a per port basis, endstations connected to ports that belong to the same VLAN should belong to the same IP subnetwork.

SRB Between a TrBRF VLAN and VIP2 Token Ring Interface Example

The following configuration refers to the RSM as shown in : 

interface TokenRing3/1

 source-bridge 10 1 100

 source-bridge spanning

!

source-bridge ring-group 100

interface vlan999 type trbrf

 source-bridge trcrf-vlan 40 ring-group 100

 source-bridge spanning

Figure 11 SRB Between a TrBRF VLAN and VIP2 Token Ring Interface

Following is the configuration for the Catalyst 5000 switch which performs simple SRB. In this configuration, the Token Ring switch module exists in slot 5 and is using port 1. The Token Ring port on 5/1 is assigned to TrCRF VLAN 50. 

#vtp

set vtp domain trrsm

set vtp mode server

set vtp v2 enable

#drip

set tokenring reduction enable

set tokenring distrib-crf disable

#vlans

set vlan 999 name trbrf type trbrf bridge 0xe stp ibm

set vlan 40 name trcrf40 type trcrf parent 999 ring 0x64 mode srb 

set vlan 50 name trcrf50 type trcrf parent 999 ring 0x1 mode srb 

#add token port to trcrf 50

set vlan 50 5/1

In this configuration, the keyword name is optional and srb is the default mode. The ring number on the switch must be specified in decimal by substituting the decring keyword for ring.

SRB Between TrBRF VLANs Example

The following configuration refers to the RSM as shown in :

Figure 12 SRB Between TrBRF VLANs

source-bridge ring-group 100

!

interface vlan999 type trbrf

 source-bridge trcrf-vlan 40 ring-group 100

 source-bridge spanning

!

interface vlan998 type trbrf

 source-bridge trcrf-vlan 70 ring-group 100

 source-bridge spanning

The following is the configuration for the Catalyst 5000 switch with the Token Ring switch module in slot 5. The Token Ring port on 5/1 is assigned to TrCRF VLAN 50 and the Token Ring port on 5/2 is assigned to TrCRF VLAN 80. 

#vtp

set vtp domain trrsm

set vtp mode server

set vtp v2 enable

#drip

set tokenring reduction enable

set tokenring distrib-crf disable

#vlans

set vlan 999 name trbrf type trbrf bridge 0xe stp ibm

set vlan 40 name trcrf40 type trcrf parent 999 ring 0x64 mode srb

set vlan 50 name trcrf50 type trcrf parent 999 ring 0x1 mode srb

set vlan 998 name trbrf type trbrf bridge 0xd stp ibm 

set vlan 70 name trcrf70 type trcrf parent 998 ring 0x64 mode srb

set vlan 80 name trcrf80 type trcrf parent 998 ring 0x2 mode srb

#add token port to trcrf 50

set vlan 50 5/1

#add token port to trcrf 80

set vlan 80 5/2

In this configuration, the keyword name is optional and srb is the default mode.

Transparent Bridging between a TrBRF VLAN and a VIP2 Token Ring Interface Example

The following is the configuration for the RSM as shown in : 

bridge 1 protocol ieee 
!

interface tokenring0

 bridge-group 1

interface vlan 50 type trbrf

 bridge-group 1

Figure 13 Transparent Bridging between a TrBRF VLAN and a VIP2 Token Ring Interface

The following is the configuration for the Catalyst 5000 switch with a Token Ring switch module in slot 5: 

#vtp

set vtp domain trrsm

set vtp mode server

set vtp v2 enable

#drip

set tokenring reduction enable

set tokenring distrib-crf disable

#vlans

set vlan 50 name trbrf50 type trbrf bridge 0xb stp ieee

set vlan 100 name trcrf100 type trcrf ring 0x64 parent 50 mode srt

#add token port to trcrf 100

set vlan 100 5/14

SR/TLB between a TrBRF VLAN and a VIP2 Ethernet Interface Example

The following is the configuration for the RSM as shown in : 

source-bridge ring-group 100

bridge 1 protocol ieee

source-bridge transparent 100 200 10 1

!

interface vlan999 type trbrf

  source-bridge trcrf-vlan 20 ring-group 100

  source-bridge spanning

!

interface ethernet1/0

  bridge-group 1

Figure 14 SR/TLB between a TrBRF VLAN and a VIP2 Ethernet Interface

The following is the configuration for the Catalyst 5000 switch with an Ethernet module in slot 2 and a Token Ring switch module in slot 5. In this configuration, the Token Ring port on 2/1 is assigned to VLAN 21. 

#vtp

set vtp domain trrsm

set vtp mode server

set vtp v2 enable

#drip

set tokenring reduction enable

set tokenring distrib-crf disable

#vlans

set vlan 999 type trbrf bridge 0xd stp ibm

set vlan 20 type trcrf parent 999 ring 0x64 mode srb

set vlan 21 type trcrf parent 999 ring 0x65 mode srb

#add token ring port to trcrf 21

set vlan 21 2/1

SR/TLB between a TrBRF VLAN and Ethernet VLAN Example

The following is the configuration for the RSM as shown in : 

source-bridge ring-group 100

bridge 1 protocol ieee

source-bridge transparent 100 200 10 1

!

interface vlan999 type trbrf

 source-bridge trcrf-vlan 20 ring-group 100

 source-bridge spanning

!

interface vlan100 type ethernet

 bridge-group 1

Figure 15 SR/TLB between a TrBRF VLAN and Ethernet VLAN

The following is the configuration for the Catalyst 5000 switch with an Ethernet module in slot 2 and a Token Ring switch module in slot 5. In this configuration, the Token Ring port on 5/1 is assigned to TrCRF 21, and the Ethernet port on 2/1 is assigned to VLAN 100. 

#vtp

set vtp domain trrsm

set vtp mode server

set vtp v2 enable

#drip

set tokenring reduction enable

set tokenring distrib-crf disable

#vlans

set vlan 999 type trbrf bridge 0xd stp ibm

set vlan 20 type trcrf parent 999 ring 0x64 mode srb

set vlan 21 type trcrf parent 999 ring 0x65 mode srb

#add token port to trcrf 21

set vlan 21 5/1

#add ethernet

set vlan 100 type ethernet

set vlan 100 2/1

DLSw+ Example

The following is the configuration for the RSM with a VIP2 serial interface as shown in : 

source-bridge ring-group 100

dlsw local-peer peer-id 10.18.20.8

dlsw remote-peer 0 tcp 10.18.20.6

!

interface Serial1/0

 ip address 10.18.20.8 255.255.255.0

 no keepalive

 clockrate 64000

!

interface Vlan89 type trbrf

 no ip address

 source-bridge trcrf-vlan 9 ring-group 100

 source-bridge spanning

Figure 16 Configuration for DLSw+ Example

The following is the configuration for a Catalyst 5000 with a Token Ring module in slot 5. In this configuration, the Token Ring port 5/1 is assigned with the TrCRF VLAN 10: 

#vtp

set vtp domain trrsm

set vtp mode server

set vtp v2 enable

#drip

set tokenring reduction enable

set tokenring distrib-crf disable

#vlans

set vlan 89 type trbrf bridge 0xd stp ibm

set vlan 10 type trcrf parent 89 ring 0xa mode srb

#add token ring port to TrCRF 10

set vlan 10 5/1

The following is the configuration for the remote router: 

source-bridge ring group 100 

dlsw local-peer peer-id 10.18.20.6

dlsw remote-peer 0 tcp 10.18.20.8

!

interface loopback 0

 ip address 10.18.20.6

!

interface serial1/0

 no ip address

 no keepalive

 clockrate 64000

!

interface tokenring 2/0

 no ip address

 ring-speed 16