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Specifying the LSA arrival interval
If OSPF receives an LSA that has the same LSA type, LS ID, and router ID as the previously received LSA
within the LSA arrival interval, OSPF discards the LSA to save bandwidth and route resources.
To configure the LSA arrival interval:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter OSPF view.
ospf
[
process-id
|
router-id
router-id
|
vpn-instance
vpn-instance-name
] *
N/A
3.
Configure the LSA arrival
interval.
lsa-arrival-interval
interval
The default setting is 1000
milliseconds.
Make sure this interval is smaller than
or equal to the interval set with the
lsa-generation-interva
l command.
Specifying the LSA generation interval
Adjust the LSA generation interval to protect network resources and routers from being overwhelmed by
LSAs at the time of frequent network changes.
When network changes are infrequent, LSAs are generated at the
minimum-interval
. If network changes
become frequent, the LSA generation interval is incremented by
incremental-interval
× 2
n-2
(n is the
number of generation times) for each generation until the
maximum-interval
is reached.
To configure the LSA generation interval:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter OSPF view.
ospf
[
process-id
|
router-id
router-id
|
vpn-instance
vpn-instance-name
] *
N/A
3.
Configure the LSA
generation interval.
lsa-generation-interval
maximum-interval
[
minimum-interval
[
incremental-interval
] ]
By default:
•
The maximum interval is 5
seconds.
•
The minimum interval is 50
milliseconds.
•
The incremental interval is 200
milliseconds.
Disabling interfaces from receiving and sending OSPF packets
To enhance OSPF adaptability and reduce resource consumption, you can set an OSPF interface to
"silent." A silent OSPF interface blocks OSPF packets and cannot establish any OSPF neighbor
relationship. However, other interfaces on the router can still advertise direct routes of the interface in
Router LSAs.
