Before you remove an SRP module, you must issue
the halt command, which stops operation
on that module. If the router contains both primary and redundant
SRP modules, you can specify which modules the command should affect.You
can also configure the router to prompt you when the modules are in
a state that might lead to loss of configuration data or NVS corruption.
If you do not use the halt command before removing or powering down an SRP module, the router’s
NVS may become corrupted.
For information about physically removing an SRP
module, see ERX Hardware Guide, Chapter 4,
Use to stop the router’s operation before you
remove or power down an SRP module
The following guidelines apply when you issue the halt command in Privileged Exec mode:
Specify neither the primary-srp nor the standby-srp keyword to stop operation
on both SRP modules.
Specify the keyword primary-srp to stop operation on the primary SRP module only. This action causes
the redundant SRP module to assume the primary role.
Specify the keyword standby-srp to stop operation on the redundant SRP module only.
If you do not specify the force keyword,
the procedure fails if:
The SRP modules are in certain states, such as during
a synchronization. In these cases, the router will display a message
that indicates that the procedure cannot currently be performed and
the reason why. However, if the SRP modules are in other states that
could lead to a loss of configuration data or NVS corruption, the
router displays a message that explains the state of the SRP modules
and asks you to confirm (enter yes or no) whether you want to proceed.
The SRP modules are in any state that could lead to loss
of configuration data or NVS corruption, and the router will display
a message that explains why the command failed.
In Boot mode, you cannot issue any keywords with this
When the high availability state is active or pending,
this command ensures that the router configuration, up to when you
issued the halt command, is mirrored to
the standby SRP.
When you issue this command, the router prompts you for
a confirmation before the procedure starts.
Remove or power down the SRP module within 2 minutes of
executing the halt command. Otherwise,
the SRP module will automatically reboot.