A row in this table represents parameters specific to MPLS PSN for a pseudowire (PW). The row is created automatically by the local agent if the pwPsnType is mpls(1). It is indexed by pwIndex, which uniquely identifies a singular PW. Manual entries in this table SHOULD be preserved after a reboot, and the agent MUST ensure the integrity of those entries. If the set of entries of a specific row were found to be nonconsistent 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.