The ospfv3 bfd block command blocks the bidirectional forwarding detection (BFD) dynamically created by an interface.
The undo ospfv3 bfd block command cancels the feature.
By default, BFD is not blocked.
Product |
Support |
|---|---|
S5720-EI, S5720-HI, S5720I-SI, S5720S-SI, S5720-SI, S5735-S, S5735S-S, S5735-S-I, S5730-HI, S5730S-EI, S5730-SI, S5731-H, S5731-S, S5731S-H, S5731S-S, S5732-H, S6720-EI, S6720-HI, S6720S-EI, S6720S-SI, S6720-SI, S6730-H, S6730S-H, S6730-S, and S6730S-S |
Supported |
S2720-EI, S5720-LI, S5735-L, S5735S-L, S5735S-L-M, S5720S-LI, S6720-LI, and S6720S-LI |
Not supported |
| Parameter | Description | Value |
|---|---|---|
| instance instance-id | Indicates the interface instance id. | The value is an integer ranges from 0 to 255. |
Usage Scenario
If the bfd all-interfaces enable command is run in the OSPFv3 process, all neighbors that enable OSPFv3 and the neighbor relationship is in Full state create BFD sessions. To prevent specific interfaces from being enabled with BFD, you can disable their interfaces from dynamically creating BFD sessions.
Prerequisites
BFD has been enabled on these interfaces.
Before configuring this command, you must run the ipv6 enable command in the interface view to enable IPv6.
Precautions
The ospfv3 bfd enable command and the ospfv3 bfd block command are mutually exclusive.