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Configuration Guide - Ethernet Switching

CloudEngine 8800, 7800, 6800, and 5800 V200R003C00

This document describes the configuration of Ethernet services, including configuring MAC address table, link aggregation, VLANs, MUX VLAN, Voice VLAN, VLAN mapping, QinQ, GVRP, VCMP, STP/RSTP/MSTP, VBST, SEP, RRPP, ERPS, LBDT, and Layer 2 protocol transparent transmission.
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Configuring an MST Region

Configuring an MST Region

Context

An MST region contains multiple directly connected switching devices and network segments between these devices. These switching devices run MSTP and have the same MST region name, VLAN-to-MSTI mapping table, and MSTP revision level. One switching network can have multiple MST regions. Running MSTP commands allows you to group multiple switching devices into one MST region.

NOTE:
Two switching devices belong to the same MST region when they have the same:
  • MST region name

  • Mapping between VLANs and MSTIs

  • Revision level of the MST region

Perform the following steps on a switching device that needs to join an MST region.

Procedure

  • Configure the name of an MST region.
    1. Run system-view

      The system view is displayed.

    2. Run stp region-configuration

      The MST region view is displayed.

    3. Run region-name name

      The name of an MST region is configured.

      By default, the name of an MST region is the MAC address of the management network interface on the MPU of the switching device.

    4. (Optional) Run check region-configuration

      The device is configured to check the MST region name.

    5. Run commit

      The configuration is committed.

  • Configure the mapping between MSTIs and VLANs.

    You can configure the mapping between MSTIs and VLANs in the MST region view and VLAN instance view.

    Configure the mapping between an MSTI and VLANs in the MST region view.

    1. Run system-view

      The system view is displayed.

    2. Run stp region-configuration

      The MST region view is displayed.

    3. Run instance instance-id vlan { vlan-id1 [ to vlan-id2 ] }&<1-10>

      The mapping between the MSTI and VLANs is configured.

      By default, all VLANs in an MST region are mapped to MSTI 0.

      NOTE:

      A VLAN can be mapped to only one MSTI. If you map a VLAN that has already been mapped to an MSTI to another MSTI, the original mapping will be deleted.

    4. (Optional) Run check region-configuration

      The device is configured to check the mapping between the MSTI and VLANs.

    5. Run commit

      The configuration is committed.

    Configure the mapping between an MSTI and VLANs in the VLAN instance view.

    1. Run system-view

      The system view is displayed.

    2. Run vlan instance

      The VLAN instance view is displayed.

    3. Run instance instance-id vlan { vlan-id1 [ to vlan-id2 ] }&<1-10>

      The mapping between VLANs and an MSTI is configured.

      By default, all VLANs in the VLAN instance view are mapped to MSTI 0.

      NOTE:

      The vlan instance and stp region-configuration commands cannot be used together. If the mappings between VLANs and MSTIs have been configured by the stp region-configuration command, you must delete the configured mapping before using the vlan instance command.

    4. (Optional) Run check vlan instance mapping

      The configuration is checked.

    5. Run commit

      The configuration is committed.

  • (Optional) Configure the revision level of the MST region.
    1. Run system-view

      The system view is displayed.

    2. Run stp region-configuration

      The MST region view is displayed.

    3. Run revision-level level

      The MSTP revision level of the MST region is configured.

      By default, the revision level of an MST region is 0.

      If the MSTP revision level of the MST region where a switching device resides is not 0, perform this operation.

    4. (Optional) Run check region-configuration

      The device is configured to check the MSTP revision level of the MST region.

    5. Run commit

      The configuration is committed.

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Updated: 2019-05-08

Document ID: EDOC1100004351

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