H3C Technologies H3C SR8800 - Manual (Page 177)

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To enable an interface to send small hello packets:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter interface view.
interface interface-type
interface-number
N/A
3. Enable the interface to send
small hello packets without
CLVs.
isis small-hello
By default, standard hello packets
are sent.
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.
To specify the maximum age of LSPs:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter IS-IS view.
isis [ process-id ] [ vpn-instance
vpn-instance-name ]
N/A
3. 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. To solve the problem, you can adjust the LSP generation interval.
To specify the LSP refresh interval and generation interval:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter IS-IS view. isis [ process-id ] [ vpn-instance vpn-instance-name ] N/A
3. Specify the LSP refresh
interval.
timer lsp-refresh seconds
Optional
900 seconds by
default
4. Specify the LSP
generation interval.
timer lsp-generation maximum-interval
[ initial-interval [ second-wait-interval ] ] [ level-1 |
level-2 ]
Optional
2 seconds by default