Configuring an Interval at Which Hello Packets are Sent
Context
Hello packets are sent periodically to the neighbor switch to establish and maintain a neighbor relationship and to elect a designated router (DR) and a backup DR (BDR). RFC 2328 requires that the Hello timer values of neighbors be consistent. The value of the Hello timer is inversely proportional to the route convergence speed and network load.
Perform the following operations on the switch that runs OSPFv3.
Procedure
- Run system-view
The system view is displayed.
- Run interface interface-type interface-number
The interface view is displayed.
- (Optional) On an Ethernet interface, run undo portswitch
The interface is switched to Layer 3 mode.
By default, an Ethernet interface works in Layer 2 mode.
Only the S5720-EI, S5720-HI, S5730-HI, S5731-H, S5731-S, S5731S-H, S5731S-S, S5732-H, S6720-EI, S6720-HI, S6720S-EI, S6730-H, S6730S-H, S6730-S, and S6730S-S support switching between Layer 2 and Layer 3 modes.
- Run ospfv3 timer hello interval [ conservative ] [ instance instance-id ]
The interval at which Hello packets are sent is set on the interface.