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Operation
3-2
Figure 3-1. Packet Flow for the 9E428-36 and 9E429-36
ENIB
The Ethernet Network Interface Block (ENIB) converts Ethernet data packets
received through front panel ports into a common canonical format that allows
the SmartSwitch ASIC Engine to determine the proper destination port. The ENIB
also converts data packets from the common canonical format back to Ethernet
data packets for transmission out front panel ports.
Fast
Packet
Switch
i960
Processor
I
N
B
1
2
INB
NIB
SMB 1
SMB 10
DC/DC
Convertor
Diagnostic
Controller
ENI B
ENI B
ENI B
ENI B
ENI B
ENI B
ENI B
ENI B
ENI B