Enabling An Is-Is Topology - Cisco ASR 9000 Series Routing Configuration Manual

Implementing IS-IS
Command or Action
Step 3
maximum prefix limit
Example:
RP/0/RSP0/CPU0:router(config-af)# maximum prefix 100
Step 4 interface type interface-path-id
Example:
RP/0/RSP0/CPU0:router(config-af)# interface
GigabitEthernet 0/3/0/0
Step 5 address-family { ipv4 | ipv6 } multicast topology topo-name
Example:
RP/0/RSP0/CPU0:router(config-if)# address-family ipv4
multicast topology green
Step 6 Repeat Step 4 and Step 5 until you have specified all the interface
instances you want to associate with your topologies.
Example:
RP/0/RSP0/CPU0:router(config-if-af)# interface
gigabitethernet 0/3/2/0
RP/0/RSP0/CPU0:routerrouter(config-if)# address-family
ipv4 multicast topology purple
RP/0/RSP0/CPU0:router(config-if-af)#
Step 7 commit

Enabling an IS-IS Topology

To enable a topology in IS-IS, you must associate an IS-IS topology ID with the named topology. IS-IS uses
the topology ID to differentiate topologies in the domain.
Note This command must be configured prior to other topology commands.
SUMMARY STEPS
1. configure
2. router isis instance-id
3. address-family { ipv4 | ipv6 } multicast topology topo-name
4. topology-id multitoplogy-id
5. commit
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.3.x
Configuring Multitopology Routing
Purpose
(Optional) Limits the number of prefixes allowed
in a topology routing table. Range is 32 to 2000000.
Specifies the interface to be associated with the
previously specified VRF table that will add the
connected and local routes to the appropriate routing
table.
Enables the topology for the interface specified in
Step 4, on page 361, adding the connected and local
routes to the appropriate routing table.
—
361