Configuring stub routers – H3C Technologies H3C SR8800 User Manual
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Step Command
Remarks
3.
Configure the LSA
generation interval.
lsa-generation-interval
maximum-interval [ initial-interval
[ incremental-interval ] ]
Optional.
By default, the maximum interval is 5
seconds, the minimum interval is 0
milliseconds and the incremental
interval is 5000 milliseconds.
NOTE:
When network changes are not frequent, LSAs are generated at the
minimum-interval. If network changes
become frequent, the LSA generation interval is incremented by
incremental-interval × 2n-2 (n is the
number of generation times) each time a LSA generation occurs until the
maximum-interval is reached.
Disabling interfaces from receiving and sending OSPF packets
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 }
Optional
Not disabled by default
NOTE:
•
Different OSPF processes can disable the same interface from receiving and sending OSPF packets. The
silent-interface command disables only the interfaces associated with the current process rather than
interfaces associated with other processes.
•
After an OSPF interface is set to silent, other interfaces on the router can still advertise direct routes of the
interface in Router LSAs, but the interface cannot send any packet. This configuration can enhance
OSPF adaptability and reduce resource consumption.
Configuring stub routers
A stub router is used for traffic control. It tells other OSPF routers to not use it to forward data.
The Router LSAs from the stub router may 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. 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.
Thus, neighbors find that the links to the stub router have such big costs that they will not send packets to
the stub router for forwarding as long as another route with a smaller cost exists.
To configure a router as a stub router:
Step Command
Remarks
1.
Enter system view.
system-view
N/A