Managing Cmm Modules; Reloading A Cmm Module; Switching The Primary And Secondary Roles - Alcatel-Lucent OmniSwitch 9800E Hardware User's Manual

Managing CMM Modules

Managing CMM Modules
Refer to the "Managing CMM Directory Content" chapter in the Switch Management Guide for detailed
information on managing CMM modules.

Reloading a CMM Module

You can reload either the primary or secondary CMM module using the CLI's
information on using this command, refer to the "Managing CMM Directory Content" chapter in the
Switch Management Guide. A CMM reload is essentially a soft boot of the module. Note that you can
reload only one CMM module at a time; the primary and secondary CMMs cannot be reloaded simulta-
neously.
Reloading the Primary CMM
If the primary CMM is reloaded, the secondary CMM automatically takes over primary management func-
tions. In other words, the secondary CMM becomes the primary CMM as soon as the reload is initiated.
The reloaded CMM then assumes the secondary—or redundant—role when the reload sequence is
complete.
Reloading the Secondary CMM
If the secondary CMM is reloaded, only the secondary CMM is affected. The primary CMM continues all
operations without interruption.

Switching the Primary and Secondary Roles

The primary and secondary CMM modules can trade roles. In other words, the CMM that is currently
functioning as the secondary CMM can be assigned to "take over" the role of the primary CMM. The
primary CMM then assumes the secondary role. Because this action is coordinated between the two CMM
modules, switch management functions are maintained during the takeover.
To manually designate the secondary CMM to assume the primary role, enter the
the CLI prompt. For example:
-> takeover
You can also use the
logged in to is primary or secondary. For
example:
Current running CMM
Current running configuration : WORKING,
Certify/Restore Status
Synchronization Status
In this example, the user is currently logged in to the primary CMM.
Note. Before using the takeover command, verify that the primary and secondary CMM modules are
synchronized. Otherwise, data flow and switch management functions may be interrupted due to incorrect
or outdated software when the secondary CMM takes over. For more information, refer to
the Primary and Secondary CMMs" on page
page 3-14
show running-directory
: PRIMARY,
: CERTIFIED,
: SYNCHRONIZED
3-11.
OmniSwitch 9000E Series Hardware Users Guide
Chassis Management Module (CMM)
command to display whether the CMM you are currently
reload command. For
takeover command at
"Synchronizing
December 2008