Raisecom ISCOM2600G-HI (A) Series Configuration Manual page 272

Raisecom
ISCOM2600G-HI (A) Series Configuration Guide
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Therefore, we recommend configuring these 3 values in the following order: hello-
interval, dead-interval, and poll-interval.
Configuring SPF calculation interval
When the OSPF Link State Database (LSDB) changes, it needs to re-calculate the shortest
path. If the network changes frequently and it needs to calculate the shortest path immediately,
it will occupy a great amount of system resources and affect efficiency of the router. By
adjusting the SPF calculation interval, you can prevent some effects brought by frequent
network changes.
Configure the SPF calculation interval for the ISCOM2600G-HI series switch as below.
Command
Raisecom(config)#interface
interface-type interface-
number
Raisecom(config-
gigaethernet1/1/port)#ip
ospf dead-interval
Raisecom(config-
gigaethernet1/1/port)#ip
ospf hello-interval
seconds
Raisecom(config-
gigaethernet1/1/port)#ip
ospf poll-interval
Raisecom(config-
gigaethernet1/1/port)#ip
ospf retransmit-interval
seconds
Raisecom(config-
gigaethernet1/1/port)#ip
ospf transmit-delay
seconds
When the dead-interval is not manually configured, the dead-interval and poll-
interval are changed to 4 times of the hello-interval after the hello-interval is
configured.
When the dead-interval is manually configured, no effect is brought to the dead-
interval and poll-interval after hello-interval is configured. No matter whether you
configure the poll interval or not, the poll-interval changes with the dead-interval.
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Enter interface configuration mode.
Configure the OSPF neighbor dead interval.
By default, it is 4 times of Hello packet
seconds
delivery interval. If no Hello packet
delivery interval is configured, it is 40s for
P2P and Broadcast interfaces and 120s for
P2MP and NBMA interfaces by default.
Configure the ODPF Hello packet delivery
interval.
By default, it is 10s for P2P and Broadcast
interfaces and 30s for P2MP and NBMA
interfaces
Configure the OSPF Poll timer interval.
By default, it is 120s.
seconds
Configure the LAS retransmission interval
on the IP interface.
By default, it is 5s.
Configure the LSA retransmission delay on
the IP interface.
By default, it is 1s.
5 IP services
Description
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