Cisco 2975 - Catalyst LAN Base Switch, Руководство по настройке программного обеспечения

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Catalyst 2975 Switch Software Configuration Guide
OL-19720-02
Chapter 6 Managing Switch Stacks
Configuring the Switch Stack
Configuring the Switch Stack
• Default Switch Stack Configuration, page 6-17
•
Enabling Persistent MAC Address, page 6-17
• Assigning Stack Member Information, page 6-19
•
Changing the Stack Membership, page 6-21
Default Switch Stack Configuration
Table 6-3 shows the default switch stack configuration.
Enabling Persistent MAC Address
The MAC address of the master determines the stack MAC address. When a master is removed from the
stack and a new master takes over, the MAC address of the new master to become the new stack MAC
address. However, you can set the persistent MAC address feature with a time delay before the stack
MAC address changes. During this time period, if the previous master rejoins the stack, the stack
continues to use that MAC address as the stack MAC address, even if the switch is now a member and
not a master. You can also configure stack MAC persistency so that the stack MAC address never
changes to the new master MAC address.
Caution When you configure this feature, a warning message displays the consequences of your configuration.
You should use this feature cautiously. Using the old master MAC address elsewhere in the domain could
result in lost traffic.
Table 6-3 Default Switch Stack Configuration
Feature Default Setting
Stack MAC address timer Disabled.
Member number 1
Member priority value 1
Offline configuration The switch stack is not provisioned.
Persistent MAC address Disabled.