Configuring MSTI ports for MSTP

Perform the following procedure to configure MSTI ports for MSTP.

Procedure

  1. In the navigation tree, expand the following folders: Configuration > VLAN > Spanning Tree.
  2. Click MSTP.
  3. Click the MSTI Port tab.
    Note

    Note

    Port members you select on the VLAN, Basic tab appear in the MSTI Port tab.

  4. Use the fields in the MSTI Port box to configure the MSTP.
  5. Click Apply.

MSTI Port field descriptions

Use the data in the following procedure to use the MSTI Port tab.

Name

Description

Port

Specifies the port number of the port for which this entry contains spanning tree information.

Instance

Specifies the spanning tree instance to which the information belongs.

PathCost

Specifies the contribution of this port to the path cost of paths towards the MSTI root that includes this port.

Priority

Specifies the four most significant bits of the port identifier for a given spanning tree instance can be modified independently for each spanning tree instance supported by the bridge. The values configured for port priority must be in steps of 16. The default is 128.

DesignatedRoot

Specifies the unique bridge identifier of the bridge recorded as the MSTI regional root in the configuration BPDUs transmitted.

DesignatedBridge

Specifies the unique bridge identifier of the bridge that this port considers to be the designated bridge for the port segment.

DesignatedPort

Specifies the port identifier of the port on the designated bridge for this port segment.

State

Specifies the current state of the port, as defined by the MSTP. A port which is in forwarding state in one instance can be in discarding (blocking) state in another instance.

ForcePortState

Specifies the current state of the port, that is changed to either disabled or enabled for the specific spanning tree instance.

DesignatedCost

Specifies the path cost of the designated port of the segment connected to this port.

CurrentPortRole

Specifies the current port role of the port for this spanning tree instance.

EffectivePortState

Specifies the effective operational state of the port for a specific instance. This is configured to true if the port is operationally up at the interface and protocol levels for the specific instance. This is configured to false at all other times.
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