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Implementing IS-IS on Cisco IOS XR Software
How to Implement IS-IS on Cisco IOS XR Software
RC-102
Cisco IOS XR Routing Configuration Guide
Controlling LSP Flooding for IS-IS
Flooding of LSPs can limit network scalability. You can control LSP flooding by tuning your LSP
database parameters on the router globally or on the interface. This task is optional.
Many of the commands to control LSP flooding contain an option to specify the level to which they
apply. Without the option, the command applies to both levels. If an option is configured for one level,
the other level continues to use the default value. To configure options for both levels, use the command
twice. For example:
RP/0/RP0/CPU0:router(config-isis)# lsp-refresh-interval 1200 level 2
RP/0/RP0/CPU0:router(config-isis)# lsp-refresh-interval 1100 level 1
SUMMARY STEPS
1. configure
2. router isis instance-id
3. lsp-refresh-interval seconds [level {1 | 2}]
4. lsp-check-interval seconds [level {1 | 2}]
5. lsp-gen-interval {[initial-wait initial | secondary-wait secondary | maximum-wait maximum]
...}[level {1 | 2}]
6. lsp-mtu bytes [level {1 | 2}]
7. max-lsp-lifetime seconds [level {1 | 2}]
8. ignore-lsp-errors disable
9. interface type instance
10. lsp-interval milliseconds [level {1 | 2}]
11. csnp-interval seconds [level {1 | 2}]
12. retransmit-interval seconds [level {1 | 2}]
13. retransmit-throttle-interval milliseconds [level {1 | 2}]
14. mesh-group {number | blocked}
15. end
or
commit
16. show isis interface [type instance | level {1 | 2}] [brief]
17. show isis [instance instance-id] database [level {1 | 2}] [detail | summary | verbose] [* | lsp-id]
18. show isis [instance instance-id] lsp-log [level {1 | 2}]
19. show isis database-log [level {1 | 2}]