Configuring Token Ring Inter-Switch Link
TRISL Configuration Task List
BC-148
Cisco IOS Bridging and IBM Networking Configuration Guide
78-11737-02
Figure 54 illustrates a TrBRF that contains TrCRFs on both a router and a switch.
Figure 54 TrCRFs in a TrBRF
TRISL Configuration Task List
To configure and monitor TRISL in your network, perform one or more of the following tasks:
• Configuring IP Routing over TRISL, page 148
• Configuring Hot Standby Router Protocol over TRISL, page 149
• Configuring IPX Routing over TRISL, page 150
• Configuring Source-Route Bridging over TRISL, page 151
• Configuring Source-Route Transparent Bridging over TRISL, page 151
• Configuring Source-Route Translational Bridging over TRISL, page 152
See the “TRISL Configuration Examples” section on page 154 for examples.
Configuring IP Routing over TRISL
The IP routing over TRISL VLANs feature extends IP routing capabilities to include support for routing
IP frame types in VLAN configurations. To configure IP routing over TRISL, use the following
commands beginning in global configuration mode:
1183
TRISL
TrBRF
TrCRF
Switch
TrCRF
TrCRF
Command Purpose
Step 1
Router(config)# ip routing
Enables IP routing on the router.
Step 2
Router(config)# interface type
slot/port.subinterface-number
Specifies the subinterface on which TRISL will be used.
Step 3
Router(config-if)# encapsulation
tr-isl trbrf-vlan vlanid bridge-num
bridge-number
Defines the encapsulation format, and specifies the VLAN identifier.
Step 4
Router(config-if)# ip address
ip-address mask
Sets a primary IP address for an interface.
