Specifications

Configuring Routing Between VLANs
Configuration Examples for Configuring Routing Between VLANs
57
interface FastEthernet4/0.2
ip address 10.4.4.1 255.255.255.0
encapsulation tr-isl trbrf-vlan 998 bridge-num 13
multiring trcrf-vlan 300 ring 101
multiring all
The following is the configuration for the Catalyst 5000 switch with the Token Ring switch module in
slot 5. In this configuration, the Token Ring port 102 is assigned with TrCRF VLAN 40 and the Token
Ring port 103 is assigned with TrCRF VLAN 50:
#vtp
set vtp domain trisl
set vtp mode server
set vtp v2 enable
#drip
set set tokenring reduction enable
set tokenring distrib-crf disable
#vlans
set vlan 999 name trbrf type trbrf bridge 0xe stp ieee
set vlan 200 name trcrf200 type trcrf parent 999 ring 0x64 mode srb
set vlan 40 name trcrf40 type trcrf parent 999 ring 0x66 mode srb
set vlan 998 name trbrf type trbrf bridge 0xd stp ieee
set vlan 300 name trcrf300 type trcrf parent 998 ring 0x65 mode srb
set vlan 50 name trcrf50 type trcrf parent 998 ring 0x67 mode srb
#add token port to trcrf 40
set vlan 40 5/1
#add token port to trcrf 50
set vlan 50 5/2
set trunk 1/2 on
IP Routing Between a TRISL VLAN and an Ethernet ISL VLAN: Example
Figure 87 shows IP routing between a TRISL VLAN and an Ethernet ISL VLAN.
Figure 87 IP Routing Between a TRISL VLAN and an Ethernet ISL VLAN
The following is the configuration for the router:
interface FastEthernet4/0.1
ip address 10.5.5.1 255.255.255.0
encapsulation tr-isl trbrf-vlan 999 bridge-num 14
multiring trcrf-vlan 20 ring 100
multiring all
!
interface FastEthernet4/0.2
ip address 10.4.4.1 255.255.255.0
encapsulation isl 12
End station
End station
Ethernet ISL VLAN 12
5.5.5.1
4.4.4.1
TrBRF 999 / Bridge 14
Router A
11251
Token Ring
switch module
in slot 5
TrCRF100
Slot 5
Port 1
Ethernet
module
in slot 2
Catalyst
5000 switch
5500
Token
Ring
1
100
TrCRF 200