Cisco Systems BC-281 manual BC-321, DLSw+ Translation Between Fddi and Token Ring

Configuring Data-Link Switching Plus

DLSw+ Configuration Examples

dlsw bridge-group 5

!

interface loopback 0

ip address 128.207.111.1 255.255.255.0 interface Ethernet 0

no ip address bridge-group 5

!

bridge 5 protocol ieee

Router B

hostname Router B

!

source-bridge transparent 500 1000 1 5 dlsw local-peer peer-id 128.207.1.145 dlsw remote-peer 0 tcp 128.207.111.1 dlsw bridge-group 5

!

interface loopback 0

ip address 128.207.1.145 255.255.255.0 interface ethernet 1/2

no ip address bridge-group 5

!

interface tokenring 2/0 no ip address ring-speed 16 source-bridge 7 1 500 source-bridge spanning

!

bridge 5 protocol ieee

Because DLSw+ does not do local translation between different LAN types, Router B must be configured for SR/TLB by issuing the source-bridge transparent command. Also, note that the bridge groups are configured on the ethernet interfaces.

DLSw+ Translation Between FDDI and Token Ring Configuration Example

DLSw+ also supports FDDI media. The configuration is similar to other DLSw+ configurations except for configuring for a specific media type. The following example shows FDDI media (see Figure 136).

Figure 136 DLSw+ Translation Between FDDI and Token Ring

FDDI	DLSw+
Router A	Router B

Token

Ring

H6565

In the following configuration, an FDDI ring on Router A is connected to a Token Ring on Router B across a DLSw+ link.

Router A

source-bridge ring-group 10

dlsw local-peer peer-id 132.11.11.2

dlsw remote-peer 0	tcp	132.11.11.3
interface loopback	0
ip address 132.11.11.2		255.255.255.0
		Cisco IOS Bridging and IBM Networking Configuration Guide
78-11737-02			BC-321