[j-nsp] Bfd support for vrrp interface tracking query !

[vaibhava varma]

Hi All
I have a requirement in my typical LAN scenario whereby my LAN server
connects in a dual homed fashion to two different LAN switches from a third
party vendor. We are using vrrp for the server LAN. The two 3rd party vendor
switches are uplinked via L3 links to two ex-4500. We are tracking the
uplink interfaces under vrrp such that no traffic blackholing occurs if the
uplink connectivity from master is broken. Now customer has asked to use bfd
support in the vrrp uplink interface tracking which is supported by the
vendor switches. This topic is confusing to me as what configuration would
be required on ex-4500 to achieve this as the requirement is not to
configure bfd for routing protocol but for vrrp interface tracking. As per
my understanding we have no option in junos to configure vrrp independently
under interfaces other than using it under routing context. If anyone has
any prior experience with implementing such setup please guide me on what
needs to be done from ex-4500 side to achieve this. We are using static
routes on ex-4500 for server LAN reachability and default route on vendor
switches towards junos but no bfd for static routing.
Regards
Varma