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Step 5. A Reverse Traffic Packet Arrives at the Egress Interface and the NPU Processes It.

This step mirrors Step 1 exactly in reverse. See Step 1 in this section for details.

Example: Packet (b->a) arrives at NPU2. NPU2 checks its session table for a tuple match. It finds a match and that a session exists for the packet on SPU1. NPU2 forwards the packet to SPU1 for processing.

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