Configuring Token Ring Inter-Switch Link
TRISL Configuration Examples
BC-164
Cisco IOS Bridging and IBM Networking Configuration Guide
78-11737-02
SRB Between TRISL VLANs Example
Figure 64 illustrates SRB between two TrCRF VLANs.
Figure 64 SRB Between TRISL VLANs
The following is the configuration for the router:
source-bridge ring-group 101
!
interface fastethernet4/0.1
encapsulation tr-isl trbrf 999 bridge-num 14
source-bridge trcrf-vlan 100 ring-group 101
source-bridge spanning
!
interface fastethernet4/0.2
encapsulation tr-isl trbrf 998 bridge-num 13
source-bridge trcrf-vlan 102 ring-group 101
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 40 and the Token Ring port on 5/2 is
assigned to TrCRF VLAN 50.
In this configuration, the keyword name is optional and srb is the default mode.
#vtp
set vtp domain trisl
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 100 name trcrf100 type trcrf parent 999 ring 0x65 mode srb
set vlan 40 name trcrf40 type trcrf parent 999 ring 0x1 mode srb
set vlan 998 name trbrf type trbrf bridge 0xd stp ibm
set vlan 102 name trcrf102 type trcrf parent 998 ring 0x65 mode srb
set vlan 50 name trcrf50 type trcrf parent 998 ring 0xa mode srb
5500
TrBRF 998/Bridge 13
Fast Ethernet 4/0.2
Fast Ethernet 4/0.1
Token
Ring
switch
module
TrBRF 999/Bridge 14
Router with
Fast Ethernet
adapter
101
rCRF 102
rCRF 100
TrCRF VLAN 40
Slot 5
Port 1
TrCRF
VLAN 5
Slot 5
Port 2
51890
Token
Ring 1
Token
Ring
10
