Cisco NCS 5500 Series

Example:
RP/0/RP0/CPU0:router# show isis instance 1 spf-log ipv4
(Optional) Displays how often and why the router has run a full SPF calculation.
Customize Routes for IS-IS
This task explains how to perform route functions that include injecting default routes into your IS-IS routing
domain and redistributing routes learned in another IS-IS instance. This task is optional.
SUMMARY STEPS
1. configure
2. router isis instance-id
3. set-overload-bit [ on-startup { delay | wait-for-bgp }] [ level { 1 | 2 }]
4. address-family { ipv4 | ipv6 } [ unicast ]
5. default-information originate [ route-policy route-policy-name ]
6. distribute-list { {prefix-list prefix-list-name | route-policy route-policy-name} } in
7. redistribute isis instance [ level-1 | level-2 | level-1-2 ] [ metric metric ] [ metric-type { internal
| external }] [ policy policy-name ]
8. Do one of the following:
• summary-prefix address / prefix-length [ level { 1 | 2 }]
• summary-prefix ipv6-prefix / prefix-length [ level { 1 | 2 }]
9. maximum-paths route-number
10. distance weight [ address / prefix-length [ route-list-name ]]
11. set-attached-bit
12. commit
DETAILED STEPS
Step 1 configure
Step 2 router isis instance-id
Example:
RP/0/RP0/CPU0:router(config)# router isis isp
Enables IS-IS routing for the specified routing process, and places the router in router configuration mode.
• By default, all IS-IS instances are automatically Level 1 and Level 2. You can change the level of routing to be
performed by a particular routing instance by using the is-type command.
Step 3 set-overload-bit [ on-startup { delay | wait-for-bgp }] [ level { 1 | 2 }]
Example:
Routing Configuration Guide for Cisco NCS 5500 Series Routers, IOS XR Release 6.3.x
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Implementing IS-IS
Customize Routes for IS-IS