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34 | Advanced Deployment Scenarios
Scenario B: Stateful HA Pair
For network installations with two Dell SonicWALL NSA 6600
appliances configured as a stateful synchronized pair for
redundant High Availability (HA) networking.
In this scenario, one NSA 6600 operates as the Primary
gateway device and the other NSA 6600 is in Idle mode. All
network connection information is synchronized between the
two devices so that the Secondary appliance can seamlessly
switch to Active mode without dropping connections if the
Primary device loses connectivity.
To set up this scenario, follow the steps covered in:
• Configuring a Stateful HA Pair, page 37
B
SonicWALL NSA 6600
CONSOLE
SDHC
MGMT
X19 X17
X16
X14 X12 X10 X8 X6 X4
1GE1GE
10GE
BYPASS
STATUS
X2 X0
X1X3X5X7
X9X11X13X15
X18
M0
ALARM
TEST
PWR
SonicWALL NSA 6600
CONSOLE
SDHC
MGMT
X19 X17
X16
X14 X12 X10 X8 X6 X4
1GE1GE
10GE
BYPASS
STATUS
X2 X0
X1X3X5X7
X9X11X13X15
X18
M0
ALARM
TEST
PWR
Dell SonicWALL
HA/Failover Pair
Dell SonicWALL NSA Appliance 1
Dell SonicWALL NSA Appliance 2
HA Control Link
Local Network
Internet
HA Data Link