# no spanning-tree mst root

## **Command Name**

no spanning-tree mst

## **Synopsis**

This command removes the root bridge designation for a specified instance in a Multiple Spanning Tree (MST) configuration.

## **Description**

The **no spanning-tree mst** command is used in network configurations employing Multiple Spanning Tree Protocol (MSTP). MSTP allows for multiple spanning-tree instances within a network. Each instance can have a root bridge, which is the central point of reference for that spanning-tree. This command is used to remove the configuration that designates a specific switch as the root bridge for a given MST instance. Removing a switch from being the root bridge can be important for reconfiguring the network's topology or for load balancing purposes.

## **Syntax**

<mark style="color:blue;">**`no spanning-tree mst {instance-id <instance-id(1-16)>} root`**</mark>

## **Parameters**

* **`instance-id <instance-id(1-16)>`**: Specifies the MST instance ID for which the root bridge designation is being removed. The instance ID should be a short integer ranging from 1 to 16.

## Options

N/A

## **Example**

* **To remove the root bridge designation for MST instance 1, use:**

  ```markup
  no spanning-tree mst instance-id 1 root

  ```

## **Command Mode**

Global Configuration Mode

## **Summary**

The no spanning-tree mst command is vital for network administrators managing MST configurations. Removing a root bridge designation can significantly alter the spanning-tree topology and should be done with careful planning. This action can be used to balance network load, prevent network loops, and optimize the data path. It's important to understand the implications of this change on the overall network stability and performance before proceeding.