The value of vRtrLdpServFecRemoteIpv6Capblty indicates whether or not
the remote ipv6 stack capability is supported for this LDP peer.
The value of vRtrLdpServFecRemoteIpv6Capblty is 'true' when the remote
ipv6 stack capability is supported and the value is 'false' when the
remote ipv6 stack capability is not supported.