HP 5500 EI series User Manual

347
Configuring OSPFv3 timers
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter interface view.
interface interface-type
interface-number
N/A
3. Configure the hello interval.
ospfv3 timer hello seconds
[ instance instance-id ]
By default, the hello interval on P2P and
broadcast interfaces is 10 seconds.
4. Configure the dead interval.
ospfv3 timer dead seconds
[ instance instance-id ]
By default, the dead interval on P2P and
broadcast interfaces is 40 seconds.
The dead interval set on neighboring
interfaces cannot be too short.
Otherwise, a neighbor is easily
considered down.
5. Configure the poll interval.
ospfv3 timer poll seconds
[ instance instance-id ]
By default, the poll interval is 120
seconds.
6. Configure the LSA
retransmission interval.
ospfv3 timer retransmit
interval [ instance instance-id ]
The default setting is 5 seconds.
The LSA retransmission interval cannot
be too short. Otherwise, unnecessary
retransmissions will occur.
Specifying LSA transmission delay
Each LSA in the LSDB has an age that is incremented by 1 every second, but the age does not change
during transmission. Therefore, it is necessary to add a transmission delay into the age time, 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.
ospfv3 trans-delay seconds
[ instance instance-id ]
By default, the LSA transmission
delay is 1 second.
Specifying SPF calculation interval
LSDB changes result in SPF calculations. When the topology changes frequently, a large amount of
network and router resources are occupied by SPF calculation. You can adjust the SPF calculation
interval to reduce the impact.
When network changes are not frequent, the minimum-interval is adopted. If network changes become
frequent, the SPF calculation interval is incremented by incremental-interval × 2
n-2
(n is the number of
generation times) each time an SPF calculation occurs until the maximum-interval is reached.

HP 5500 EI series Specifications

General

Brand	HP
Model	5500 EI series
Category	Switch
Language	English