F3726, F3211, F3174, R5135, R3816-HP Firewalls and UTM Devices Network Management Configuration Guide-6PW100

440
Ste
p
Command Remarks
395. Enter system view. system-view N/A
396. Enter IS-IS view.
isis [ process-id ] [ vpn-instance
vpn-instance-name ]
N/A
397. Specify the LSP
refresh interval.
timer lsp-refresh seconds
Optional.
The default interval is 900 seconds.
398. Specify the LSP
generation interval.
timer lsp-generation maximum-interval
[ initial-interval [ second-wait-interval ] ]
[ level-1 | level-2 ]
Optional.
The default interval is 2 seconds.
3. Specify LSP sending intervals
If a change occurs in the LSDB, IS-IS advertises the changed LSP to neighbors. You can specify the
minimum interval for sending such LSPs.
On a P2P link, IS-IS requires an advertised LSP be acknowledged. If no acknowledgement is
received within a configurable interval, IS-IS will retransmit the LSP.
To configure LSP sending intervals:
Ste
p
Command Remarks
399. Enter system view. system-view N/A
400. Enter interface view.
interface interface-type
interface-number
N/A
401. Specify the minimum interval
for sending LSPs and the
maximum LSP number that
can be sent at a time.
isis timer lsp time
[ count count ]
Optional.
By default, the minimum interval is 33
milliseconds, and the maximum LSP number
that can be sent at a time is 5.
402. Specify the LSP retransmission
interval on a P2P link.
isis timer retransmit
seconds
Optional.
5 seconds by default.
Configure a proper LSP retransmission interval
to avoid unnecessary retransmissions.
1464BSpecifying LSP lengths
IS-IS messages cannot be fragmented at the IP layer because they are directly encapsulated in frames.
IS-IS routers in an area must send LSPs smaller than the smallest interface MTU in this area.
If the IS-IS routers have different interface MTUs, HP recommends configuring the maximum size of
generated LSP packets to be smaller than the smallest interface MTU in this area. Otherwise, the routers
must dynamically adjust the LSP packet size to fit the smallest interface MTU, which takes time and affects
other services.
To specify LSP lengths:
Ste
p
Command Remarks
403. Enter system view.
system-view N/A
404. Enter IS-IS view.
isis [ process-id ] [ vpn-instance
vpn-instance-name ]
N/A