H3C LS-3100-52P-OVS-H3 Operation Manual - page 635
1-25
To do…
Use the command…
Remarks
Enter system view
system-view
––
Enter interface view
interface interface-type
interface-number
––
Enable the interface to send
small hello packets without
CLVs
isis small-hello
Required
Standard hello packets are sent
by default.
Configuring LSP Parameters
Configuring LSP timers
1) Specify the maximum age of LSPs
Each LSP has an age that decreases in the LSDB. Any LSP with an age of 0 is deleted from the LSDB.
You can adjust the age value based on the scale of a network.
Follow these steps to specify the maximum age of LSPs:
To do…
Use the command…
Remarks
Enter system view
system-view
––
Enter IS-IS view
isis [ process-id ]
[ vpn-instance
vpn-instance-name ]
––
Specify the maximum LSP age
timer lsp-max-age seconds
Optional
1200 seconds by default
2) Specify the LSP refresh interval and generation interval
Each router needs to refresh LSPs generated by itself at a configurable interval and send them to other
routers to prevent valid routes from being aged out. A smaller refresh interval speeds up network
convergence but consumes more bandwidth.
When the network topology changes, for example, a neighbor is down/up, or the interface metric,
system ID or area ID is changed, the router generates an LSP after a configurable interval. If such
changes occur frequently, excessive LSPs are generated, consuming a large amount of router
resources and bandwidth; in this case, you can adjust the LSP generation interval.
Follow these steps to specify the LSP refresh interval and generation interval:
To do…
Use the command…
Remarks
Enter system view
system-view
––
Enter IS-IS view
isis [ process-id ] [ vpn-instance
vpn-instance-name ]
––
Specify the LSP refresh
interval
timer lsp-refresh seconds
Optional
900 seconds by default
Specify the LSP
generation interval
timer lsp-generation maximum-interval
[ initial-interval [ second-wait-interval ] ]
[ level-1 | level-2]
Optional
2 seconds by default