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1. Enter system view.
system-view
N/A
2. Enter interface view.
interface
interface-type
interface-number
N/A
3. Specify the interval for
sending hello packets.
isis timer hello
seconds
[
level-1
|
level-2
]
The default setting is 10 seconds.
The interval between hello
packets sent by the DIS is 1/3 the
hello interval set with the
isis
command.
Specifying the IS-IS hello multiplier
The hello multiplier is the number of hello packets a neighbor must miss before it declares that the
router is down.
If a neighbor receives no hello packets from the router within the advertised hold time, it considers
the router down and recalculates the routes. The hold time is the hello multiplier multiplied by the
hello interval.
On a broadcast link, Level-1 and Level-2 hello packets are advertised separately. You must set a
hello multiplier for each level.
On a P2P link, Level-1 and Level-2 hello packets are advertised in P2P hello packets. You do not
need to specify Level-1 or Level-2.
To specify the IS-IS hello multiplier:
1. Enter system view.
system-view
N/A
2. Enter interface view.
interface
interface-type
interface-number
N/A
3. Specify the hello multiplier.
isis timer holding-multiplier
value
[
level-1
|
level-2
]
The default setting is
3.
Specifying the interval for sending IS-IS CSNP packets
On a broadcast network, perform this task on the DIS that uses CSNP packets to synchronize
LSDBs.
To specify the interval for sending IS-IS CSNP packets:
1. Enter system view.
system-view
N/A
2. Enter interface view.
interface
interface-type
interface-number
N/A
3. Specify the interval for
sending CSNP packets on
the DIS of a broadcast
network.
isis timer csnp
seconds
[
level-1 | level-2
]
The default setting is 10 seconds.
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