A row in this table represents an ATM PW that needs to be
adapted and carried over PSN. This table is indexed by
pwIndex from pwTable and the ATM interface with VPL/ VCLs.
In atmTransparent(3), Vpi and VCi will be 0xFFFF
during set operation.
Unless otherwise specified, all read-create objects in this
table MUST NOT be changed after row activation
and SHOULD remain unchanged after reboot.