Function
The revision-level command is used to configure the multiple
spanning tree protocol (MSTP) revision level of the device. The revision level,
region name and configuration digest are three decision factors to check whether
the devices are in the same multiple spanning tree (MST) region. After the
revision level is set, only the devices with the same revision level are in the
same MST region.
The undo revision-level command is used to restore the default MSTP revision level of the device. By default, the revision level of the device is 0.
The undo revision-level command is used to restore the default MSTP revision level of the device. By default, the revision level of the device is 0.
Parameters
| Parameter | Description | Value |
|---|---|---|
| level | Indicates the MSTP revision level. |
Numeral type. Range: 0-65535. Default: 0. |
Usage Guidelines
- Run the config command to enter global config mode, and then run the stp region-configuration command to enter MST region mode.
- The MSTP revision level, region name and VLAN mapping table are used to check the MST which the device belongs to.
- The user configure the related parameters of the MST region on the device to divide the device into a specified MST region.
- Two devices that belong to a same MST region meet the following
requirements:
- The region names are the same.
- The revision levels are the same.
- The configuration digest are the same. The configuration digest is calculated by VLAN mapping table of all the spanning trees and MD5-KEY through MD5 encryption algorithm.
- The modified device revision level takes effect only after the configuration is activated.
Example
To set the MSTP revision level of the device to 32768, do as follow:
huawei(stp-region-configuration)#revision-level
{ integer<U><0,65535> }:32768
Command:
revision-level 32768
To restore the default MSTP level of the device, do as follows:huawei(stp-region-configuration)#undo revision-level
how can i emigrate from PVST+ configuration to MSTP?
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