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
ENIB
ENIB
ENIB
ENIB
ENIB
ENIB
ENIB
ENIB
ENIB