The SR OS supports RFC 5885, which specifies a method for carrying BFD in a pseudowire associated channel. For general information about VCCV BFD, limitations, and configuring, see the VLL Services chapter.
VCCV BFD is supported on the following VPLS services:
T-LDP spoke-SDP termination on VPLS (including I-VPLS, B-VPLS, and R-VPLS)
H-VPLS spoke-SDP
BGP VPLS
VPLS with BGP auto-discovery
To configure VCCV BFD for H-VPLS (where the pseudowire template does not apply), configure the BFD template using the configure service vpls spoke-sdp bfd-template name command, then enable it using the configure service vpls spoke-sdp bfd-enable command.
For BGP VPLS, a BFD template is referenced from the pseudowire template binding context. To configure VCCV BFD for BGP VPLS, use the configure service vpls bgp pw-template-binding bfd-template name command and enable it using the configure service vpls bgp pw-template-binding bfd-enable command.
For BGP-AD VPLS, a BFD template is referenced from the pseudowire template context. To configure VCCV BFD for BGP-AD, use the configure service vpls bgp-ad pw-template-binding bfd-template name command, and enable it using the configure service vpls bgp-ad pw-template-binding bfd-enable command.