Cisco WS-C4506 - Syst. Catalyst 4500 Switch Bedienungsanleitung PDF herunterladen (Seite 34)

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BRKARC-3445

34

Supervisor Packet Forwarding

Pipeline Architecture

 The Forwarding

engines utilize a

pipelined architecture

 Packet is processed

through ‘all’ stages

of the pipeline

 Deterministic latency

for ‘all’ traffic in

‘all’ cases

Packet Buffer SRAM

Payload Header

Payload

Header

Header

L2 Lookup

L3 Lookup

QoS Lookup

ACL Lookup

Header

Payload

Header

Payload

Forwarding

Engine

Packet Processor

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