Alcatel-Lucent 6850-48 补充手册

下载
页码 312
Managing Redundancy in a Stack and CMM
Managing CMM Directory Content
page 5-28
OmniSwitch AOS Release 6 Switch Management Guide
September 2009
Swapping the Primary CMM for the Secondary CMM
If the primary CMM is having problems, or if it needs to be shut down, then the secondary CMM can be 
instructed to “take over” the switch operation as the primary CMM is shut down.
Note. It is important that the software for the secondary CMM has been synchronized with the primary 
CMM before you initiate a secondary CMM takeover. If the CMMs are not synchronized, the takeover 
could result in the switch running old or out-of-date software. Synchronizing the primary and secondary 
CMMs is described in 
To instruct the secondary CMM to takeover switch functions from the primary CMM, enter the following 
command at the prompt:
-> takeover
To instruct the secondary CMM to takeover switch functions from the primary CMM with a complete 
CMM reload, enter the following command at the prompt:
-> takeover with-fabric
 command is described in detail in the OmniSwitch CLI Reference Guide.
On OmniSwitch Stackable Series switches only, in a stack with three or more switches, the secondary 
CMM takes over as primary and the original primary becomes “idle.” The next available idle switch 
becomes the new secondary CMM. For more information on stacks, see the “Managing Stacks” chapter 
found in the appropriate Hardware Users Guide.
Note. The saved boot.cfg file will be overwritten if the 
 command is executed after the 
 command on a switch set up with redundant CMMs.