Hot adding or removing a Cisco 3750 from a stack
When using a Cisco 3750 stack connected through stackwise technology you can add or remove a Cisco switch while the stack stays on. If you are adding or removing a switch from the stack, it is very important that the switch is turned OFF. The rest of the stack can keep doing its business.
For adding a switch to the stack follow these steps:
Type is the type of switch you are adding to the stack.
When adding for example a third Cisco switch to the Cisco stack, use the following command:
switch 3 provision ws3750g-24t
Step 2) Power off the new stack member
Step 3) Connect the new member to the Cisco stack using the stacking cables, 1 loop at a time.
Step 4) Power on the new stack member. The switch will come alive and will receive the Cisco IOS version from the master, when that is completed it will be ready to service network requests.
For removing a member switch from the stack use the following steps:
Step 1) Power off the stack member to be removed.
Step 2) Remove the stackwise cable from the switch.
Step 3) Issue the following command on the stack master: no switch stack-member-number provision type
Cisco StackWise technology is a stacking architecture optimized for Gigabit Ethernet with 32-Gbps interconnect throughput. Cisco StackWise technology unites up to nine individual Cisco Catalyst 3750 switches into a single logical unit, using special stack interconnect cables and stacking software. The stack behaves as a single switching unit that is managed by a master switch elected from one of the member switches. The master switch automatically creates and updates all the switching and optional routing tables. A working stack can accept new members or delete old ones without service interruption.
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