CISCO 3750 Dual Switch stack operation, cisco3750 dual

CISCO 3750 Dual Switch stack operation, cisco3750 dual

Double switch stack operation

I. Basic Requirements:

The ios version must be consistent with the dedicated stack module and stack cable, and the maximum number of stacks is 9.

Ii. Stack advantages:

High-density ports, easy to manage, and stacked switches can be regarded as a unified configuration of a switch

Iii. Stack instances:

1: Clear the configurations of the two vswitches respectively.

2: The stacked cables (two cables) are physically connected. The connection method is master stack1, which is connected to slave stack2. The master stack2 is connected to the slave stack1.

3: enable the master without any configuration. .

4: Server Load balancer is enabled.

5: No configuration is required. (The master light is on the switch front panel)

6: after the two vswitches are started:

Showswitch displays the summary of stack Switches

7. Configuration switch: import the configuration files backed up by the same device in TFTP mode. Or manually configure.

Common commands:

Restart a vswitch: reload slot <1-9>

If you want to modify the numbers of the two vswitches, run the following command to make them effective after restart:

Switch (config) # switch 1 renumber 3 change switch 1 to 3

Switch (config) # switch 2 renumber 1 change switch 2 number to 1

Switch (config) # switch 3 renumber 2 Change switch 3 number to 2

Delete A vswitch. For example, delete vswitch 1.

Switch (config) # no switch 1 provision

Modify switch priority: the default value is 1, the maximum value is 15, and the highest priority is master. After the modification, restart the switch. The high priority is worth becoming the master.

Switch (config) # switch 1 priority 15 change switch 1 priority to 15

Switch troubleshooting:

Slave Switch Failure:

1. Power off the faulty slave switch and unplug the stacked line.

2. Find a switch with the same model and IOS.

3. Plug in the stacked line and turn on the power.

4. After the startup is complete, the slave switch automatically synchronizes the configuration file from the master switch.

5. Run the show switch/showrunning-config command to view the switch information.

Master Switch Failure:

1. Backup Switch configuration

2. Redo the stack of the new master switch and the original slave switch.

3. Import the configuration file

4. Check the running status