The value of svcTlsBackboneLDPMacFlush specifies whether
'LDP MAC withdraw' message received in the 'iVpls' domain
should attempt to generate a new 'LDP MAC withdraw' message
in the 'bVpls' domain. Generation of the 'LDP MAC withdraw'
message is still constrained by the svcTlsMacFlushOnFail
value in the 'bVpls'.
An inconsistentValue error is returned if an attempt
is made to set this object when the value of
svcVplsType is not 'iVpls'.