User guide

Configuring IS-IS Configuring IS-IS
page 3-16 OmniSwitch AOS Release 7 Advanced Routing Configuration Guide March 2015
Removing IS-IS
To remove IS-IS from the router memory, it is necessary to manually edit the boot.cfg file. The boot.cfg
file is an ASCII text-based file that controls many of the switch parameters. Open the file and delete all
references to IS-IS.
For the operation to take effect the switch needs to be rebooted.
Creating an IS-IS Area ID
IS-IS allows a set of network devices in an AS to be grouped together in areas. Each area is identified by
an area ID. The area ID is a 1–13 byte variable length integer, which specifies the area address of an IS-IS
routing process.
For creating an IS-IS area first assign area ID to each router present in the network by using the
ip isis area-id command. There can be more than one router in an area.
Note: Each router can have a maximum of 3 area IDs assigned to it.
Creating an Area ID
To create an area ID and associate it with a router, enter the ip isis area-id command with the area
identification number at the CLI prompt, as shown:
-> ip isis area-id 49.0001
Area ID 49.0001 will now be created on the router with the default parameters.
Deleting an Area ID
To delete an area ID, enter the ip isis area-id command, as shown:
-> no ip isis area-id 49.0001
Activate IPv4 or IPv6 Routing
To activate IPv6 or IPv4 routing in IS-IS, enter the ip isis activate command as shown. By default, both
IPv4 and IPv6 routing is enabled in IS-IS.
-> ip isis activate-ipv6
-> ip isis activate-ipv4
The no form of this command disables the IPv4/IPv6 routing in IS-IS.
-> no ip isis activate-ipv4
Creating IS-IS Circuit
Configure an IP/IPv6 IS-IS circuit on particular VLAN. Both IPv4 and IPv6 interfaces can be configured
on a particular VLAN to the IS-IS circuit. The type of interfaces (IPv4 or IPv6) is controlled by address-
family extension.
To create an IPv4/IPv6 IS-IS circuit, use the ip isis vlan command. For example, to create an IPv6 circuit,
enter: