Cisco N7K-C7009 Manual de usuario Pagina 61

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© 2012 Cisco and/or its affiliates. All rights reserved.
Presentation_ID
Cisco Public
© 2013 Cisco and/or its affiliates. All rights reserved.
BRKARC-3470 Cisco Public
65
SoC
VOQ
SoC
DE
F2 / F2E L2 Packet Flow
Module 2
Fabric ASIC
e2/1
Module 1
Fabric ASIC
e1/1
Fabric Module 1
Fabric ASIC
Fabric Module 2
Fabric ASIC
Fabric Module 3
Fabric ASIC
Supervisor Engine
Central Arbiter
HDR
= Packet Headers
DATA
= Packet Data = Internal Signalling
CTRL
VOQ arbitration
Credit grant for
fabric access
Receive from fabric
Return buffer credit
Return
credit
to pool
Transmit
packet
on wire
Fabric Module 4
Fabric ASIC
Fabric Module 5
Fabric ASIC
Transmit
to fabric
VOQ
Receive
packet
from wire
Ingress
port QoS
(VOQ)
Ingress L2 SMAC/ DMAC
lookups, ACL/QoS lookups
Return result
Submit packet headers for lookup
Egress port QoS
(Scheduling)
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