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Packet Forwarding Engine
The Packet Forwarding Engine uses application-specific integrated
circuits (ASICs) to perform Layer 2 and Layer 3 packet switching,
route lookups, and packet forwarding. The Packet Forwarding Engine
forwards packets between input and output interfaces. The M-series
routers (except the M7i, M40, and M320 routers) have redundant Packet
Forwarding Engines. The J-series Services Routers have a software-based
Packet Forwarding Engine. For more information about the Packet Forwarding
Engine, see the hardware guide for your routing platform.
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