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Ospf areas, Configuring stub routers – H3C Technologies H3C S12500-X Series Switches User Manual

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Step Command

Remarks

3.

Configure the LSA
generation interval.

lsa-generation-interval
maximum-interval [ minimum-interval

[ incremental-interval ] ]

By default:

The maximum interval is 5

seconds.

The minimum interval is 50

milliseconds.

The incremental interval is 200

milliseconds.

213B

Disabling interfaces from receiving and sending OSPF packets

To enhance OSPF adaptability and reduce resource consumption, you can set an OSPF interface to

"silent." A silent OSPF interface blocks OSPF packets and cannot establish any OSPF neighbor

relationship. However, other interfaces on the router can still advertise direct routes of the interface in
Router LSAs.
To disable interfaces from receiving and sending routing information:

Step Command

Remarks

1.

Enter system view.

system-view

N/A

2.

Enter OSPF view.

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

3.

Disable interfaces from
receiving and sending

OSPF packets.

silent-interface { interface-type
interface-number | all }

By default, an OSPF interface can
receive and send OSPF packets.
The silent-interface command

disables only the interfaces

associated with the current process
rather than other processes.

Multiple OSPF processes can

disable the same interface from
receiving and sending OSPF

packets.

214B

Configuring stub routers

A stub router is used for traffic control. It reports its status as a stub router to neighboring OSPF routers.

The neighboring routers do not use the stub router to forward data although they have a route to it.
Router LSAs from the stub router might contain different link type values. A value of 3 means a link to a
stub network, and the cost of the link will not be changed by default. To set the cost of the link to 65535,

specify the include-stub keyword in the stub-router command. A value of 1, 2 or 4 means a point-to-point

link, a link to a transit network, or a virtual link. On such links, a maximum cost value of 65535 is used.

Neighbors do not send packets to the stub router as long as they have a route with a smaller cost.
To configure a router as a stub router:

Step Command

Remarks

1.

Enter system view.

system-view

N/A

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