Configuring The Switch Stack; Default Switch Stack Configuration; Enabling Persistent Mac Address - Cisco Catalyst 3750-X Software Configuration Manual

Configuring the Switch Stack

Table 5-2 Switch Stack Configuration Scenarios (continued)
Scenario
Stack master failure
Add more than nine stack
members
Configuring the Switch Stack
These sections contain this configuration information:
•
•
•

Default Switch Stack Configuration

Table 5-3
Table 5-3
Feature
Stack MAC address timer
Stack member number
Stack member priority value
Offline configuration

Enabling Persistent MAC Address

The switch stack MAC address is determined by the MAC address of the stack master. When a stack
master is removed from the stack and a new stack master takes over, the default is for the MAC address
of the new stack master to immediately become the new stack MAC router address. However, you can
enable the persistent MAC address feature to allow a time delay before the stack MAC address changes.
During this time period, if the previous stack master rejoins the stack, the stackcontinues to use its MAC
address as the stack MAC address, even if the switch is now a stack member and not a stack master. If
Catalyst 3750-X and 3560-X Switch Software Configuration Guide
5-20
Remove (or power off) the stack master.
Through their StackWise Plus ports,
1.
connect ten switches.
Power on all switches.
2.
Default Switch Stack Configuration, page 5-20
Enabling Persistent MAC Address, page 5-20
Assigning Stack Member Information, page 5-22
shows the default switch stack configuration.
Default Switch Stack Configuration
Chapter 5
Result
Based on the factors described in the
Election and Re-Election" section on page
of the remaining stack members becomes the new
stack master. All other stack members in the stack
remain as stack members and do not reboot.
Two switches become stack masters. One stack
master has nine stack members. The other stack
master remains as a standalone switch.
Use the Mode button and port LEDs on the switches
to identify which switches are stack masters and
which switches belong to each stack master. For
information about using the Mode button and the
LEDs, see the hardware installation guide.
Default Setting
Disabled.
1
1
The switch stack is not provisioned.
Managing Switch Stacks
"Stack Master
5-5, one
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