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Chapter 6: Deploying the SG-9100
Physical Connections
L1 and L2
on each NIC card are used to pass actual traffic – these interfaces will be
used to connect the Service Gateway to the corresponding switches or routers.
L3 and L4
are
used to duplicate traffic and pass it to the second Service Gateway so
must be connected to L3 and L4 on the same number NIC card being used by the
second Service Gateway. Traffic that is passed between Service Gateways is only used
for monitoring and classification purposes.
All other links work in the same way, with L1 and L2 on a NIC card passing actual
traffic and L3 and L4 duplicating the traffic and so on.
NOTE
If the
Service Gateway
Active Redundancy mechanism is
implemented a bypass unit should not be used. This ensures that
the network is made aware of any failure and is able to smoothly
transfer traffic to the secondary link.
Figure 6-1 – Active Redundancy Links
On the SG-9100, the following port configuration is used for Active Configuration:
Figure 6-2 – SG-9100 Interfaces
L1
L2
L3
L4
To Network
Cloned to Second
SG-9100
L1-L2
Network
L3-L4
Cloned
L5-L6
Network
L7-L8
Cloned
L9-L10
Network
L11-L12
Cloned
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