Alcatel Carrier Internetworking Solutions omniswitch User Manual

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OmniSwitch 6600 Family Switch Management Guide
March 2005
page 4-1
4   Managing CMM
Directory Content
The CMM (Chassis Management Module) software runs the OmniSwitch 6600 Family. The directory 
structure of the CMM 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, the OmniSwitch 6600 Family can also be linked together as 
a stack. For example, you could have a stack of four 6624 models, a stack of three 6648 models, or a 
combination of the two modules. An OmniSwitch 6600 Family stack can provide CMM redundancy; one 
switch is designated as the primary CMM, and one is designated as the secondary CMM. One 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.
Management of the stack is run by the stack configuration software. A detailed description of the stack 
configuration software and how it works is given in “Managing Stacks” in the OmniSwitch 6600 Family 
Hardware Users Guide
.
In This Chapter
This chapter describes the basic functions of CMM software directory management and how to implement 
them 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 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 
.
• A description of how to restore older versions of files and prevent switch downtime is described in 
.
• The CLI commands available for use and the correct way to implement them are listed in 
• The CLI commands and issues involved in managing the directory structure of a stack with redundant 
CMM software is described in