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IS-IS Application Example Configuring IS-IS
page 3-32 OmniSwitch 6800/6850/9000 Advanced Routing Configuration Guide December 2007
IS-IS Application Example
This section will demonstrate how to set up a simple IS-IS network. It uses two routers, each with an area.
Each router is a L1-L2 capable router and can communicate with different areas. This section will demon-
strate how to set it up by explaining the necessary commands for each router.
The following diagram is a simple IS-IS network. This network will be created using the steps explained
below.
Simple IS-IS Network
Step 1: Prepare the Routers
The first step is to create the VLANs on each router, add an IP interface to the VLAN, and assign a port to
the VLAN.
Note. The ports will be statically assigned to the router, as a VLAN must have a physical port assigned to
it for the router port to function. However, the router could be set up in such a way that mobile ports are
dynamically assigned to VLANs using VLAN rules. See the chapter titled “Defining VLAN Rules” in the
OmniSwitch 6800/6850/9000 Network Configuration Guide.
The commands to setup VLANs are shown below:
Router 1
-> vlan 5 name vlan-isis
-> ip interface vlan-isis address 10.4.1.1 mask 255.0.0.0 vlan 5
-> vlan 5 port default 1/10
Area
00.0001
Area
00.0002
VLAN 5
Interface 10.4.1.1
VLAN 5
Interface 10.4.1.2
level-1/2
level-1/2