batch-shutdown

Function

The batch-shutdown command shuts down BFD sessions in batches so that the sessions enter the AdminDown state.

The undo batch-shutdown command starts BFD sessions in batches.

By default, all BFD sessions are started.

Format

batch-shutdown { all | ip | lsp | pw | tunnel }

undo batch-shutdown { all | ip | lsp | pw | tunnel }

Parameters

Parameter	Description	Value
all	Shuts down all BFD sessions in batches.	-
ip	Shuts down BFD sessions of the IP link type in batches.	-
lsp	Shuts down BFD sessions of the LSP link type in batches.	-
pw	Shuts down BFD sessions of the PW link type in batches.	-
tunnel	Shuts down BFD sessions of the tunnel link type in batches.	-

Views

BFD view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
bfd	write

Usage Guidelines

Usage Scenario

When a large number of BFD sessions flap, frequent link switchovers are performed. As a result, service forwarding is affected. If the undo bfd command is run to disable BFD to restore services, a large number of BFD configurations are lost. As a result, flapping fault locating becomes difficult. To resolve this issue, run the batch-shutdown command to shut down BFD sessions in batches.

The batch-shutdown command takes effect on static BFD sessions and static self-negotiated BFD sessions. This command issues the shutdown commands in a batch for these types of BFD sessions. A shutdown command instance is generated in the view of each BFD session.

Configuration Impact

After the batch-shutdown command is run, all static BFD sessions and static auto BFD sessions or static BFD sessions and static auto BFD sessions of a specified link type enter the AdminDown state.

Precautions

The batch-shutdown and shutdown commands have the same result for a BFD session. For example, after running the batch-shutdown all command to shut down all BFD sessions, you can run the undo shutdown command to start a specified BFD session.

Example

# Shut down all BFD sessions in batches.

<HUAWEI> system-view
[~HUAWEI] bfd
[*HUAWEI-bfd] batch-shutdown all