enable mpls bfd

enable mpls bfd [{vlan} vlan_name | vlan all]


Enables the Bidirectional Forwarding Detection (BFD) client for MPLS on the specified This command is available on the ExtremeSwitching X440-G2, X450-G2, X460-G2, X465, X590, X620, X670-G2, X690, X695, X870, 5320, 5420, 5520 series switches. or all VLANs.

Syntax Description

vlan_name Specifies the VLAN on which to enable the MPLS BFD client.
vlan all Enables the MPLS BFD client on all VLANs.



Usage Guidelines

This command causes MPLS to request a BFD session to each next-hop peer reachable through the named interface. BFD sessions are triggered by the establishment of an LSP over the interface. If this command is issued after LSPs are established, then the list of active LSPs is searched for next-hop peers associated with the named interface, and a BFD session is requested for each neighbor which does not already have a session. This command also instructs MPLS to begin to consider BFD neighbor session state updates as part of the effective interface link state reported to the MPLS upper layer protocols.



BFD must be enabled on the interface before sessions can be established. To enable BFD, use the command: [enable | disable] bfd vlan vlan_name .


The following command enables the MPLS BFD client on VLAN vlan1:

enable mpls bfd vlan1


This command was first available in ExtremeXOS 12.4.

Platform Availability

This command is available only on the platforms that support MPLS as described in the ExtremeXOS and Switch Engine 31.7 Feature License Requirements document.