Management and Configuration Guide K/KA/KB.15.15

A Chassis Redundancy (8200zl Switches)
Viewing management module redundancy status
You can display the status of both the management and fabric redundant modules using this
command:
Syntax
show redundancy
Displays the status of the management and fabric modules.
Example
The output for the show redundancy command is seen in Figure 246 (page 462).
Figure 246 show redundancy command for management and fabric modules
Enabling or disabling redundant management
There are two modes for management module redundancy—warm standby mode (the default) and
Nonstop switching mode. In warm-standby mode, the active management module does not sync
continuously with the standby management module. The standby management module boots to a
certain point, syncs basic files, and only finishes booting if the active management module fails
or you choose to change which module is the active management module. The transition is not
seamless or immediate.
In Nonstop switching mode, the standby management module is synced continuously with the
active management module so that all features and config files are the same on both management
modules. The standby management module is ready to become the active management module.
The transition is quick and seamless; switching continues without interruption.
Syntax
[no] redundancy management-module [nonstop-switching]
Allows enabling or disabling of redundant management. The current active module continues to
be the active module on boot unless you use the redundancy active-management command
to enable redundant behavior.
(Default: Warm-standby redundancy mode)
The nonstop-switching parameter sets the redundancy mode to Nonstop switching.
You are prompted with "All configuration files and software images on the off-line management
module will be overwritten with the data from the current active management module. During initial
syncing from active to standby management module configuration changes are disallowed. Do
you want to continue [y/n]?"
462 Chassis Redundancy (8200zl Switches)