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CSA-7210
5 LAN Bypass Function
The CSA-7210 is equipped with a LAN Bypass function to allow uninterrupted network traffic
in the case of power disruption, system failure, or if a single in-line appliance is shut down or
hangs. The default behavior of the LAN Bypass function is determined by BIOS setting.
5.1 LAN Bypass Support
The following table outlines the behaviour of the LAN Bypass function when when set
On/Off in the BIOS under different power conditions.
Power
Status
Bypass
Setting
Power On Mode
Power Off
Mode
(S5, Standby
Power only)
No AC/DC
power with
1
st
Gen NIM
No AC/DC
power with
2
nd
Gen NIM
All Bypass Off
Bypass
Off
Bypass
Off
Bypass
On
Bypass
Off
All Bypass On
On boot Bypass is
On
for all segments.
Control is handed to
the BMC as soon as it
is ready.
Bypass
On
Bypass
On
Bypass
On
Bypass On
On boot Bypass is
On.
Control is handed to
the BMC as soon as it
is ready.
Bypass
On
Bypass
On
Bypass
On
By Segment
Bypass Off
On boot Bypass is
Off.
Control is handed
to the BMC as soon
as it is ready.
Bypass
Off
Bypass
On
Bypass
Off
Table 1. LAN Bypass Support for 1
st
and 2
nd
generation of NIMs
Note:
Check the generation of the installed NIMs and make sure the
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are correct.
