Alcatel-Lucent OmniSwitch AOS Release 6 Manual page 177

Managing CMM Directory Content
Scenario 4: Adding a New Switch to a Stack
Since the OmniSwitch Stackable Series switches are designed to be expandable, it is very likely that new
switches will be added to stacks. The stack automatically detects new switches added to the stack, and
new switches can pass traffic without a complete reboot of the stack.
However, a new switch added to the stack may not have the same software as the rest of the stack. In this
case, the new switch will need to be synchronized with the stack software.
The following diagram illustrates this idea. The diagram shows a stack of three switches to which a fourth
switch is added.
W C
1. Stack is pow-
ered up and boots
from the certified
directory,
or a copy flash-
synchro com-
mand is issued.
OmniSwitch AOS Release 6 Switch Management Guide
W C
2. The contents of
the certified direc-
tory of the primary
CMM
switch are
copied to the
working directory
of the secondary
CMM
switch.
The working
directory is then
copied to the certi-
fied directory.
Synchronizing a Stack with Three More Switches
W C
3. The contents of
the certified direc-
tory of the pri-
mary CMM switch
are copied to the
working directory
of additional
switches. The
working directory
is then copied to
the certified direc-
tory.
July 2010
CMM Files
W C
4. In a stack of
four or more
switches the sec-
ondary CMM
switch assists in
the synchroniza-
tion process, after
it has been syn-
chronized with the
primary CMM
switch.
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