Specifications

Configuring Routing Between VLANs
How to Configure Routing Between VLANS
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DETAILED STEPS
Note The default IPX encapsulation format for Cisco IOS routers is “novell-ether” (Novell Ethernet_802.3).
If you are running Novell Netware 3.12 or 4.0, the new Novell default encapsulation format is Novell
Ethernet_802.2 and you should configure the Cisco router with the IPX encapsulation format “sap.”
Configuring VIP Distributed Switching over ISL
With the introduction of the VIP distributed ISL feature, ISL encapsulated IP packets can be switched
on Versatile Interface Processor (VIP) controllers installed on Cisco 7500 series routers.
The second generation VIP2 provides distributed switching of IP encapsulated in ISL in VLAN
configurations. Where an aggregation route performs inter-VLAN routing for multiple VLANs, traffic
can be switched autonomously on-card or between cards rather than through the central Route Switch
Processor (RSP). Figure 80 shows the VIP distributed architecture of the Cisco 7500 series router.
Command or Action Purpose
Step 1
enable
Example:
Router> enable
Enables privileged EXEC mode.
• Enter your password if prompted.
Step 2
configure terminal
Example:
Router# configure terminal
Enters global configuration mode.
Step 3
ipx routing [node]
Example:
Router(config)# source-bridge ring-group 100
Enables IPX routing globally.
Step 4
interface type slot/port.subinterface-number
Example:
Router(config-if)# interface TokenRing 3/1
Specifies the subinterface on which TRISL will be used.
Step 5
encapsulation tr-isl trbrf-vlan trbrf-vlan
bridge-num bridge-num
Example:
Router(config-if)#encapsulation tr-isl
trbrf-vlan 999 bridge-num 14
Defines the encapsulation for TRISL.
Step 6
ipx network network encapsulation
encapsulation-type
Example:
Router(config-if)# ipx network 100
encapsulation sap
Specifies the IPX encapsulation on the subinterface by
specifying the NetWare network number (if necessary) and
the encapsulation type.