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page 4-12 OmniSwitch 6600 Family Switch Management Guide March 2005
Scenario 4: Adding a New Switch to a Stack
Since the OmniSwitch 6600 Family is designed to be expandable, it is very likely that new switches will
be added to stacks. The OmniSwitch 6600 Family 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.
Synchronizing a Stack with more three Switches
WC
WC
WC
WC
1. Stack is pow-
ered up and boots
from the certified
directory,
or a copy flash-
synchro com-
mand is issued.
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 certified direc-
tory.
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.
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 to the
primary CMM
switch.