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Supported Platforms
Subscriber Secure Policy and L2TP LNS Subscribers
Dynamic Tasking Control Protocol (DTCP)-initiated and RADIUS-initiated per-subscriber traffic mirroring can be applied to Point-to-Point Protocol (PPP) subscribers whose traffic is tunneled with Layer 2 Tunneling Protocol (L2TP). At the L2TP network server (LNS), both subscriber ingress traffic (from the L2TP access concentrator, or LAC, to the LNS) and subscriber egress traffic (from the LNS to the LAC) are mirrored at the inline services (si) interface corresponding to the subscriber. Ingress traffic is mirrored after decapsulation of L2TP, HDLC, and PPP headers. The egress traffic is mirrored before the IP datagram is encapsulated. The mirrored traffic contains only the IP datagram belonging to the subscriber.
