A port under a PXC (for example, port 1/1/1 or port 1/x1/1/m1/1), the PXC itself (PXC ID represented by the cross-connect port configuration port-xc pxc 1), and PXC sub-ports (for example, port pxc-1.a and pxc-1.b) all have administrative and operational states.
For a port-based PXC, when all layers of a PXC (PXC port, PXC ID, and PXC sub-ports) are operationally up, the faceplate port status LED on the faceplate blinks amber. The port activity LED lights green in the presence of traffic on PXC ports and turns off in the absence of traffic on PXC ports. The presence of the optical transceiver on the PXC has no effect on its operational state. Traffic cannot be sent out through the transceiver or be received through the transceiver from the outside. However, the existing traps related to insertion or removal of a transceiver (SFF Inserted/Removed) are supported. The "Signal-Fail" alarm on the PXC is suppressed.
The operational state of the PXC ID is derived from its administrative state and the operational state of the sub-ports.
The operational state of the PXC sub-ports is dependent on the operational state of the underlying port (faceplate port or MAC loopback) and the administrative state of the corresponding PXC ID.