peer bfd block(BGP multi-instance VPN instance view)

Format

peer peerIpv4Addr bfd block

undo peer peerIpv4Addr bfd block

Parameters

Parameter	Description	Value
peerIpv4Addr	Specifies the IPv4 address of a peer.	The value is in dotted decimal notation

Parameter

Description

Value

peerIpv4Addr

Specifies the IPv4 address of a peer.

The value is in dotted decimal notation

Views

BGP multi-instance VPN instance view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
bgp	write

Usage Guidelines

Usage Scenario

BFD provides millisecond-level fault detection. It helps BGP to detect faults in neighboring devices or links more quickly, and instructs BGP to recalculate routes for correct packet forwarding. If a peer group is configured with BFD, all members of the peer group will establish BFD sessions. The peer bfd block command can be used to prevent a peer from inheriting the BFD function from its peer group.

Example

# Prevent the peer from inheriting the BFD function of its peer group.

<HUAWEI> system-view
[~HUAWEI] ip vpn-instance vpna
[*HUAWEI-vpn-instance-vpna] ipv4-family
[*HUAWEI-vpn-instance-vpna-af-ipv4] route-distinguisher 100:1
[*HUAWEI-vpn-instance-vpna-af-ipv4] vpn-target 111:1 both
[*HUAWEI-vpn-instance-vpna-af-ipv4] quit
[*HUAWEI-instance-vpna] quit
[*HUAWEI] bgp 100 instance a
[*HUAWEI-bgp-instance-a] vpn-instance vpna
[*HUAWEI-bgp-instance-a-instance-vpna] peer 10.1.1.1 as-number 100
[*HUAWEI-bgp-instance-a-instance-vpna] peer 10.1.1.1 bfd block