H3C S3600 Series User Manual

Operation Manual – Routing Protocol
H3C S3600 Series Ethernet Switches-Release 1510 Chapter 4
OSPF Configuration
4-22
 Note:
z Default Hello and Dead timer values will be restored once the network type is
changed.
z Do not set an LSA retransmission interval that is too short. Otherwise,
unnecessary retransmission will occur. LSA retransmission interval must be
greater than the round trip time of a packet between two routers.
4.7.3 Configuring the LSA transmission delay
Table 4-15 Configure the LSA transmission delay
Operation Command Description
Enter system view
system-view
—
Enter interface view
interface interface-type
interface-number
Required
Configure the LSA
transmission delay
ospf trans-delay seconds
Optional
By default, the LSA
transmission delay is one
second.
 Note:
The transmission of OSPF packets on a link also takes time. Therefore, a
transmission delay should be added to the aging time of LSAs before the LSAs are
transmitted. For a low-speed link, pay close attention on this configuration.
4.7.4 Configuring the SPF Calculation Interval
Whenever the LSDB of OSPF is changed, the shortest paths need to be recalculated.
When the network changes frequently, calculating the shortest paths immediately
after LSDB changes will consume enormous resources and affect the operation
efficiency of the router. By adjusting the minimum SPF calculation interval, you can
lighten the negative affection caused by frequent network changes.
Table 4-16 Configure the SPF calculation interval
Operation Command Description
Enter system view
system-view
—
Enter OSPF view
ospf [ process-id [ router-id
router-id ] ]
Required

H3C S3600 Series Specifications

General

Brand	H3C
Model	S3600 Series
Category	Switch
Language	English