Traffic on a PXC sub-port can be mirrored or lawfully intercepted (LI). For example, subscriber ‟Annex1” traffic arriving on a PXC sub-port is mirrored if ‟Annex1” is configured as a mirror or LI source. A PXC sub-port can also be used to transmit mirror and LI traffic out from a mirror-destination service (such as a mirror-dest SAP or SDP can egress out a PXC sub-port, or a routable LI encapsulated packet can be forwarded and transmitted out a PXC sub-port).
A mirror destination can be configured to transmit mirrored and LI traffic out of a SAP on a PXC sub-port that is then cross connected into a VPLS service where a VXLAN encapsulation is added to the mirrored packets before transmission out of the node.
The internal q-tag that represents the PXC sub-port within the system is included in the lawfully intercepted copy of the packet for traffic intercepted (mirrored) on the ingress side of a PXC sub-port ,when the associate mirror-dest service is of type ether (the default) with routable lawful interception encapsulation (config>mirror-dest>encap).
See the 7450 ESS, 7750 SR, 7950 XRS, and VSR OAM and Diagnostics Guide for information about LI.