Chapter 5 Managing Cmm Directory Content; In This Chapter - Alcatel-Lucent OmniSwitch 6250 Management Manual

The CMM (Chassis Management Module) software runs the switches. The directory structure of the
software is designed to prevent corrupting or losing switch files. It also allows you to retrieve a previous
version of the switch software.
In addition to working as standalone switches, OmniSwitches can be linked together as a stack. A stack
can provide CMM redundancy; one switch is designated as the primary CMM, and one is designated as
the secondary CMM. One CMM or the other runs the switch, but never at the same time. All other
switches in a stack are designated "idle" for the purposes of CMM control.
Note. Mixing OmniSwitch 6250 and OmniSwitch 6450 models in the same stack is not supported.
Management of the stack is run by the stack configuration software. A detailed description of the stack
configuration software and how it works is provided in the "Managing Stacks" chapter found in the related
OmniSwitch 6250/6450 Hardware Users Guide.

In This Chapter

This chapter describes the basic functions of CMM software directory management and how to
implement them by using the Command Line Interface (CLI). CLI commands are used in the
configuration examples; for more details about the syntax of commands, see the OmniSwitch 6250/6450
CLI Reference Guide.
This chapter contains the following information:
•
The interaction between the running configuration, the working directory, and the certified directory is
described in "CMM Files" on page
•
A description of how to restore older versions of files and prevent switch downtime is described in
"Software Rollback Feature" on page
•
The CLI commands available for use and the correct way to implement them are listed in
the Directory Structure (Non-Redundant)" on page
•
The CLI commands and issues involved in managing the directory structure of a stack with redundant
CMM software is described in
OmniSwitch 6250/6450 Switch Management Guide
5 Managing CMM
Directory Content
5-3.
5-4.
5-13.
"Managing Redundancy in a Stack and CMM" on page
May 2012
CMM
"Managing
5-25.
page 5-1