Cisco Catalyst 3750-E Series, Software Configuration Manual

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Catalyst 3750-E and 3560-E Switch Software Configuration Guide
OL-9775-08
Chapter 5 Managing Switch Stacks
Configuring the Switch Stack
Use the no stack-mac persistent timer global configuration command to disable the persistent MAC
address feature.
This example shows how to configure the persistent MAC address feature for a 7-minute time delay and
to verify the configuration:
Switch(config)# stack-mac persistent timer 7
WARNING: The stack continues to use the base MAC of the old Master
WARNING: as the stack MAC after a master switchover until the MAC
WARNING: persistency timer expires. During this time the Network
WARNING: Administrators must make sure that the old stack-mac does
WARNING: not appear elsewhere in this network domain. If it does,
WARNING: user traffic may be blackholed.
Switch(config) # end
Switch# show switch
Switch/Stack Mac Address : 0016.4727.a900
Mac persistency wait time: 7 mins
H/W Current
Switch# Role Mac Address Priority Version State
----------------------------------------------------------
*1 Master 0016.4727.a900 1 0 Ready
Assigning Stack Member Information
These sections describe how to assign stack member information:
•
Assigning a Stack Member Number, page 5-22 (optional)
• Setting the Stack Member Priority Value, page 5-23 (optional)
•
Provisioning a New Member for a Switch Stack, page 5-23 (optional)
Assigning a Stack Member Number
Note
This task is available only from the stack master.
Step 4 show running-config
or
Verify that the stack MAC address timer is enabled. If enabled, the
output shows
stack-mac persistent timer
and the time in minutes.
Step 5 show switch If enabled, the display includes:
Mac persistency wait time
, the number of minutes configured, and
the current stack MAC address.
Step 6 copy running-config startup-config (Optional) Save your entries in the configuration file.
Command Purpose