This table allows an operator to manually configure an association between a PW Set and a VPLS. A PW Set is a redundant group of PWs that contains at most one active PW and an arbitrary number of standby PWs. It is identified by a PW Set index. When the user manually configures a PW in the pwTable, they may place the PW into a PW Set by configuring the PW with the appropriate PW Set Index. The user then places the whole PW Set into the VPLS by creating a row in this table. The system will automatically select which PW in the set actually carries the VPLS customer frames, and will automatically manage a transition between PWs in the PW Set in the event that the active PW changes. If PW redundancy is not required, then the user should configure PWs in the pwTable as normal, and set the PW Set index equal to the pwIndex. This will create a PW Set containing exactly one PW, which can then be placed into the VPLS using this table. Note that PW Sets containing auto-discovered pseudowires do not appear in this table. This table is indexed on vplsPwSetBindIndex to ensure a PW Set is only ever configured in a single VPLS. The read-only pwBindTable displays all PWs bound to each VPLS. Note that a change to any read-create field in this table will cause any active PWs in the corresponding PW Set to go operationally down and be re-programmed.