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

439
Ste
p
Command Remarks
388. Disable hello source
address check for the PPP
interface.
isis peer-ip-ignore
The command only applies to the PPP interface.
By default, hello source address check is enabled.
688BEnabling an interface to send small hello packets
IS-IS messages cannot be fragmented at the IP layer because they are directly encapsulated into frames.
Any two IS-IS neighboring routers must negotiate a common MTU. To avoid sending big hellos for saving
bandwidth, enable the interface to send small hello packets without CLVs.
To enable an interface to send small hello packets:
Ste
p
Command Remarks
389. Enter system view.
system-view N/A
390. Enter interface view.
interface interface-type
interface-number
N/A
391. Enable the interface to send small
hello packets without CLVs.
isis small-hello
By default, the interface can send
standard hello packets.
689BConfiguring LSP parameters
1463BConfiguring 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:
Ste
p
Command Remarks
392. Enter system view.
system-view N/A
393. Enter IS-IS view.
isis [ process-id ] [ vpn-instance
vpn-instance-name ]
N/A
394. Specify the maximum
LSP age.
timer lsp-max-age seconds
Optional.
The default setting is1200 seconds.
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 or up, or the interface
metric, system ID, or area ID is changed, the router generates an LSP after a configurable interval.
If such a change occurs frequently, excessive LSPs are generated, consuming a large amount of
router resources and bandwidth. To resolve this issue, you can adjust the LSP generation interval.
To specify the LSP refresh interval and generation interval: