Tuning and Optimizing an OSPFv3 Network 451
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■ The dead interval set on neighboring interfaces cannot be so short. Otherwise,
a neighbor is easily considered down.
■ The LSA retransmission interval cannot be so short; otherwise, unnecessary
retransmissions occur.
Configuring the DR
Priority for an Interface
Follow these steps to configure the DR priority for an interface:
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The DR priority of an interface determines the interface’s qualification in DR
election. Interfaces having the priority 0 cannot become a DR or BDR.
Ignoring MTU Check for
DD Packets
When LSAs are few in DD packets, it is unnecessary to check MTU in DD packets in
order to improve efficiency.
Follow these steps to ignore MTU check for DD packets:
Disable Interfaces from
Sending OSPFv3 Packets
Follow these steps to disable interfaces from sending OSPFv3 packets:
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After an OSPF interface is set to silent, direct routes of the interface can still be
advertised in Intra-Area-Prefix-LSAs via other interfaces, but other OSPFv3 packets
cannot be advertised. Therefore, no neighboring relationship can be established
on the interface. This feature can enhance the adaptability of OSPFv3 networking.
Enable the Logging on
Neighbor State Changes
Follow these steps to enable the logging on neighbor state changes:
To do… Use the command… Remarks
Enter system view system-view -
Enter interface view interface interface-type interface-number -
Configure the DR priority ospfv3 dr-priority priority [ instance
instance-id ]
Optional
Defaults to 1
To do… Use the command… Remarks
Enter system view system-view -
Enter interface view interface interface-type
interface-number
-
Ignore MTU check for DD
packets
ospfv3 mtu-ignore
[ instance instance-id ]
Required
Not ignored by default
To do… Use the command… Remarks
Enter system view system-view -
Enter OSPFv3 view ospfv3 [ process-id ] -
Disable interfaces from
sending OSPFv3 packets
silent-interface
{ interface-type
interface-number | all }
Required
Not disabled by default
To do… Use the command… Remarks
Enter system view system-view -
Enter OSPFv3 view ospfv3 [ process-id ] -
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