Merging Two Stacks - Cisco SGE2000 Administration Manual

• If each part of the stack has a Stack Master (for example, one contains the original
Stack Master, and one contains the Backup Master), and are operating as two
separate stacks, both Stack Masters contain the same configuration and use the
same IP address.
NOTE: If both Stack Masters use the same IP Address,
problems can occur on the network, because users
cannot connect to one of the stacks through its IP address.
Neither the Stack Master Unit or the Backup Master Unit Remains in the Group
This scenario is the same as that of a failed Stack Master where no Backup Master is
available. The following concepts apply:
• Units whose ID numbers are 3 through 8 in this part of the original stack will not
renumber themselves, and will remain shut down until a master-enabled unit is
connected and begins to operate as the Stack Master. The Master Discovery process
discovers that the Stack Master has failed.
• In this group, the units lose connection with the Stack Master. Since they began as a
running stack and none of them are in factory default mode, renumbering does not
occur, and even a reset of the units will not affect unit ID assignment, because units
can be renumbered only by a Stack Master.
• No unit ID changes are performed in each one of the two groups.
NOTE: None of the units in either group will renumber
themselves.

Merging Two Stacks

To merge two working stacks and create one stack, first decide if you will merge the stacks
while the incoming units are powered off during insertion, or if both stacks will be running
when merged.
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Linksys One Ready Communications Solution
Chapter 3: Connecting the Switch
Stack Troubleshooting and Maintenance
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