Specifications

Configuring Routing Between VLANs
Configuration Examples for Configuring Routing Between VLANs
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In Figure 90, the VIP cards forward the traffic between ISL VLANs or any other routing interface.
Traffic from any VLAN can be routed to any of the other VLANs, regardless of which VIP card receives
the traffic.
These commands show the configuration for each of the VLANs shown in Figure 90:
interface FastEthernet1/0/0
ip address 10.1.1.1 255.255.255.0
ip route-cache distributed
full-duplex
interface FastEthernet1/0/0.1
ip address 10.1.1.1 255.255.255.0
encapsulation isl 1
interface FastEthernet1/0/0.2
ip address 10.1.2.1 255.255.255.0
encapsulation isl 2
interface FastEthernet1/0/0.3
ip address 10.1.3.1 255.255.255.0
encapsulation isl 3
interface FastEthernet1/1/0
ip route-cache distributed
full-duplex
interface FastEthernet1/1/0.1
ip address 172.16.1.1 255.255.255.0
encapsulation isl 4
interface Fast Ethernet 2/0/0
ip address 10.1.1.1 255.255.255.0
ip route-cache distributed
full-duplex
interface FastEthernet2/0/0.5
ip address 10.2.1.1 255.255.255.0
encapsulation isl 5
interface FastEthernet2/1/0
ip address 10.3.1.1 255.255.255.0
ip route-cache distributed
full-duplex
interface FastEthernet2/1/0.6
ip address 10.4.6.1 255.255.255.0
encapsulation isl 6
interface FastEthernet2/1/0.7
ip address 10.4.7.1 255.255.255.0
encapsulation isl 7
XNS Routing over ISL Configuration: Example
To configure routing of the XNS protocol over ISL trunks, you need to define ISL as the encapsulation
type. This example shows XNS configured to be routed over an ISL trunk:
xns routing 0123.4567.adcb
interface fastethernet 1/0.1
encapsulation isl 100
xns network 20