This read-write value specifies the Peak Cell Rate expected at the remote end of this connection, and if not explicitly set within MGX it is derived from the connection's own endpoint parameters rather than independently configured. An administrator would set this explicitly only when the remote end's PCR genuinely differs from what would otherwise be inferred locally, such as in an asymmetric connection setup. Leaving it unset lets the system assume symmetric PCR behavior derived from the local endpoint configuration.