Configuring Ospf Network Optimization; Prerequisites; Configuring Ospf Packet Timers - 3Com S7906E Configuration Manual

To do...
Enter OSPF view
Enter area view
Advertise a host route

Configuring OSPF Network Optimization

You can optimize your OSPF network in the following ways:
Change OSPF packet timers to adjust the OSPF network convergence speed and network load.
On low speed links, you need to consider the delay time for sending LSAs on interfaces.
Change the interval for SPF calculation to reduce resource consumption caused by frequent
network changes.
Configure OSPF authentication to meet high security requirements of some mission-critical
networks.
Configure OSPF network management functions, such as binding OSPF MIB with a process,
sending trap information and collecting log information.

Prerequisites

Before configuring OSPF network optimization, you have configured:
IP addresses for interfaces;
OSPF basic functions.

Configuring OSPF Packet Timers

You can configure the following timers on OSPF interfaces as needed:
Hello timer: Interval for sending hello packets. It must be identical on OSPF neighbors. The longer
the interval, the lower convergence speed and smaller network load.
Poll timer: Interval for sending hello packets to the neighbor that is down on the NBMA network.
Dead timer: Interval within which if the interface receives no hello packet from the neighbor, it
declares the neighbor is down.
LSA retransmission timer: Interval within which if the interface receives no acknowledgement
packets after sending a LSA to the neighbor, it will retransmit the LSA.
Follow these steps to configure timers for OSPF packets:
To do...
Enter system view
Enter interface view
Use the command...
ospf [ process-id | router-id
router-id | vpn-instance
instance-name ] *
area area-id
host-advertise ip-address
cost
Use the command...
system-view
interface interface-type
interface-number
1-36
Remarks
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Optional
Not advertised by default.
Remarks
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