3com S7906E Manuel De Montage

 

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Enter OSPF view 

ospf [ process-id | router-id 
router-id | vpn-instance 
instance-name ] * 

— 

Enter area view 

area area-id

 

— 

Advertise a host route 

host-advertise ip-address 
cost 

Optional 

Not advertised by default. 

 

You can optimize your OSPF network in the following ways: 

z 

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. 

z 

Change the interval for SPF calculation to reduce resource consumption caused by frequent 

network changes. 

z 

Configure OSPF authentication to meet high security requirements of some mission-critical 

networks. 

z 

Configure OSPF network management functions, such as binding OSPF MIB with a process, 

sending trap information and collecting log information. 

Before configuring OSPF network optimization, you have configured: 

z 

IP addresses for interfaces; 

z 

OSPF basic functions. 

You can configure the following timers on OSPF interfaces as needed: 

z 

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. 

z 

Poll timer: Interval for sending hello packets to the neighbor that is down on the NBMA network. 

z 

Dead timer: Interval within which if the interface receives no hello packet from the neighbor, it 

declares the neighbor is down.  

z 

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: 

Enter system view 

— 

Enter interface view 

interface interface-type 
interface-number 

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