sdpBindPwLocalStatusBits indicates the bits set locally
when there is a fault.
LAC failures occur on the SAP that has been configured on
the PIPE service, PSN bits are set by SDP-binding failures
on the PIPE service. The pwNotForwarding bit is set when
none of the above failures apply, such as an MTU mismatch
failure. This value is sent to the peer via pseudowire
status signalling method to indicate faults only if
sdpBindPwStatusSignaling is set to true.