A row in this table represents parameters specific to MPLS PSN for a pseudo-wire (PW). The row is created automatically by the local agent if the pwPsnType is MPLS. It is indexed by pwIndex, which uniquely identifying a singular PW. Manual entries in this table SHOULD be preserved after a re-boot, the agent MUST ensure the integrity of those entries. If the set of entries of a specific row were found to be non consistent after reboot, the PW pwOperStatus MUST be declared as down(2). Any read-write object in this table MAY be changed at any time, however change of some objects (for example pwMplsMplsType) during PW forwarding state MAY cause traffic disruption.