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Embedded Services Processor (ESP):
ESP-5G, ESP-10G, ESP-20G
Centralized, programmable forwarding engine
(i.e. QFP subsystem (PPEs) and crypto engine)
providing full-packet processing
Packet buffering and queuing/scheduling (BQS)
–For output traffic to carrier cards/SPA’s
–For special features such as input shaping, reassembly,
replication, punt to RP, etc.
Interconnect providing data path links (ESI) to/from
other cards over mid-plane
–Transports traffic into and out of QFP
–Input scheduler for allocating QFP BW among ESI’s
FECP CPU managing QFP, crypto device,
mid-plane links, etc
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