3Com Switch 8800 Advanced Software V5 Configuration Guide

Configuring OSPF Network Optimization 333
Configuring the
Minimum LSA Repeating
Arrival Interval
When an interface receives an LSA that is the same with the previously received
LSA within a specified interval, the minimum LSA repeating arrival interval, the
interface will discard the LSA. To configure the minimum LSA repeating arrival
interval, use the following commands:
n
The interval set by the lsa-arrival-interval command should be smaller or equal
to the interval set by the lsa-generation-interval command.
Configuring the LSA
Generation Interval
With this feature configured, you can protect network resources and routers from
being over consumed due to frequent network changes.
To configure LSA generation interval, use the following commands:
n
With this command configured, when network changes are not frequent, LSAs
are generated at the minimum-interval. If network changes become frequent, LSA
generation interval is incremented by incremental-interval¬²2
n-2
(n is the number
of generation times) each time a generation occurs, up to the maximum-interval.
Disabling Interfaces
from Sending OSPF
Packets
To disable an interface from sending routing information to other routers, use the
following commands:
To do... Use the command... Remarks
Enter system view system-view -
Enter OSPF view ospf [ process-id | router-id
router-id | vpn-instance
instance-name ] *
-
Configure the LSA minimum
repeat arrival interval
lsa-arrival-interval interval Optional
Defaults to 1000 milliseconds
To do... Use the command... Remarks
Enter system view system-view -
Enter OSPF view ospf [ process-id | router-id
router-id | vpn-instance
instance-name ] *
Required
Configure the LSA
generation interval
lsa-generation-interval
maximum-interval [
initial-interval [
incremental-interval ] ]
Optional
By default, the maximum
interval is 5 seconds, the
minimum interval is 0
millisecond and the incremental
interval is 5000 milliseconds.
To do... Use the command... Remarks
Enter system view system-view -
Enter OSPF view ospf [ process-id | router-id
router-id | vpn-instance
instance-name ] *
-
Disable interfaces from
sending OSPF packets
silent-interface { all |
interface-type
interface-number }
Optional
Not disabled by default