4-11
Cisco PIX Security Appliance Hardware Installation Guide
78-15170-03
Chapter 4 PIX 515/515E
Installing Failover
Figure 4-11 shows an example of a minimally configured PIX 515/515E with only the two interfaces on
the motherboard used for network traffic.
Figure 4-11 Failover Connections
Note All enabled interfaces must be connected between the active and standby units. Only configure the active
unit. On the PIX 515/515E, the active unit is indicated by the ACT LED on the front panel. (See
Figure 4-3.)
Caution Do not turn the power on until the units are connected and the primary unit is configured completely.
Step 7 Use the power switch at the back of the units to power on the primary unit and then power on the standby
unit.
Within a few seconds, the active unit automatically downloads its configuration to the standby unit.
If the primary unit fails, the secondary unit automatically becomes active.
Inside
network
Internet
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PIX-515
27883
PIX 515
Primary unit
Stateful Failover
dedicated interface
cable
Failover
serial cable
PIX 515
Standby unit
UPS
(not supplied)
Power
Inside switch
Outside switch