5. Detecting a Member Link Failure When a micro-BFD session goes down, this member link MUST be taken out of the LAG load-balancing table(s). In case an implementation has separate load-balancing tables for IPv4 and IPv6, then if both an IPv4 and IPv6 micro-BFD session exist for a member link, an implementation MAY remove the member link only from the load-balancing table that matches the address family of the failing BFD session. For example, the IPv4 micro-BFD session fails but the IPv6 micro-BFD session stays Up, then the member link MAY be removed from only the IPv4 load balance table; the link MAY remain in