Switchover Implications - Dell PowerConnect B-RX Configuration Manual

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After the replacement module boots, the active module compares the standby module's flash code
and system-config file to its own. If differences exist, the active module synchronizes the standby
module's flash code and system-config file with its own.
Removal and replacement of a standby management module
You can remove a standby management module without causing a switchover to occur. The active
module continues to function as is. Communication between the active module and the removed
module stops until the new module is installed in the BigIron RX Series devices. After the new
module is installed, it assumes the role of standby module. The module boots from the source
specified for the active module. The active management modules can boot from the following
sources:
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After the module boots, the active module compares the standby module's flash code and
system-config file to its own. If differences exist, the active module synchronizes the standby
module's flash code and system-config file with its own.

Switchover implications

After the role of the active management module switches from one module to another, you must be
aware of implications that affect the following areas:
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The following sections explain the implications for these areas.
Management sessions
You can establish management sessions with the active management module's management port.
If a switchover occurs, the management port on the original active module shuts down and all open
CLI, Web management interface, and IronView Network Manager sessions with that port close. You
can open new sessions with the new active module, provided that the new active module has the
same management port connections. (For example, if you were accessing the Web management
interface through a PC connected to the original active module's management port, you can open a
new session if a PC is connected to the new active module's management port.)
In the scenario described above, you can open a new session using the same IP address you were
using before the switchover. (You configure an IP address for the active module only; if a switchover
occurs, the IP address is used by the new active module.)
BigIron RX Series Configuration Guide
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The active management module's flash memory.
A PCMCIA flash card inserted in one of the PCMCIA slots in the active management module's
front panel.
The active management module's flash memory.
A PCMCIA flash card inserted in one of the PCMCIA slots in the active management module's
front panel.
Management sessions
Syslog and SNMP traps
MAC addresses
How management module redundancy works
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