LG-Ericsson iPECS ES-4526G, Installation Manual

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C
HAPTER
3
| Installing the Switch
Connecting Switches in a Stack
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ES-4550G / ES-4526G
When using line topology and a stack link failure occurs, the stack reboots and a
Master unit is selected within each of the two stack segments. The Master unit
will be either the unit with the Master button depressed or the unit with the
lowest MAC address if the Master button is not depressed on any unit. When the
stack reboots and resumes operations, note that the IP address will be the same
for both of the stack segments. To resolve the conflicting IP addresses, you
should manually replace the failed link or unit as soon as possible. If you are
using a wrap-around stack topology, a single point of failure in the stack will not
cause the stack to fail. It would take two or more points of failure to break the
stack apart.
If the Master unit fails or is powered off, the backup unit will take control of the
stack without any loss of configuration settings. The Slave unit with the lowest
MAC address is selected as the backup unit.