F3215-HP Load Balancing Module Network Management Configuration Guide-6PW101

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• LSA retransmission timer—Interval within which if the interface receives no acknowledgement
packets after sending a LSA to the neighbor, it retransmits the LSA. An interval setting that is too
small can cause unnecessary LSA retransmissions. This interval is typically set bigger than the
round-trip time of a packet between two neighbors.
To configure timers for OSPF packets:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter interface
view.
interface interface-type
interface-number
N/A
3. Specify the hello
interval.
ospf timer hello seconds
Optional.
The hello interval defaults to 10 seconds on P2P
and broadcast interfaces, and defaults to 30
seconds on P2MP and NBMA interfaces.
The default hello interval is restored when the
network type for an interface is changed.
4. Specify the poll
interval.
ospf timer poll seconds
Optional.
The poll interval defaults to 120 seconds.
5. Specify the dead
interval.
ospf timer dead seconds
Optional.
By default:
• The dead interval on P2P and broadcast
interfaces is 40 seconds.
• The dead interval on P2MP and NBMA
interfaces is 120 seconds.
The default dead interval is restored when the
network type for an interface is changed.
6. Specify the
retransmission
interval.
ospf timer retransmit interval
Optional.
The retransmission interval defaults to 5
seconds.
Specifying LSA transmission delay
Because OSPF packets need time for transmission on links, extending the LSA age time by adding a
transmission delay is necessary, especially for low-speed links.
To specify the LSA transmission delay on an interface:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter interface view.
interface interface-type
interface-number
N/A
3. Specify the LSA transmission
delay.
ospf trans-delay seconds
Optional.
The default setting is 1 second.