Chapter 7: Command-Line Management

MSTP Instance Setting

Bridge Instance VLAN:

1. Command Mode: MST Configuration mode

Logon to Configure Mode (Configure Terminal Mode).

Then logon to MST Configuration mode.

The switch_a(config-mst)# prompt will show on the screen.

switch_a(config)#spanning-tree mst configuration

switch_a(config-mst)#

2. Usage:

Use this command to simultaneously add multiple VLANs for the corresponding instance of a bridge. This command can be used only after the VLANs are defined. Use the no parameter with this command to simultaneously remove multiple VLANs for the cor- responding instance of a bridge.

3. Command Syntax:

bridge GROUP instance INSTANCE_ID vlan VLAN_ID

no bridge GROUP instance INSTANCE_ID vlan VLAN_ID

GROUP <1-1> Specify the bridge-group ID.

INSTANCE_ID <1-15> Specify the instance ID.

VLAN_ID <1-4094> Specify multiple VLAN IDs corresponding to the bridge instance

4. Example:

The following example associates multiple VLANs (10) and (20) to instance (1) of bridge GROUP (1):

switch_a(config)#bridge 1 protocol mstp

switch_a(config)#spanning-tree mst configuration

switch_a(config-mst)#bridge 1 instance 1 vlan 10, 20

switch_a(config-mst)#

Bridge Instance Priority:

1. Command Mode: Configure mode

Logon to Configure Mode (Configure Terminal Mode).

The switch_a(config)# prompt will show on the screen.

switch_a(config)#

2. Usage:

Use this command to set the bridge priority for an MST instance to the value specified. Use the no parameter with this command to restore the default value of the bridge priority. The lower the priority of the bridge, the better the chances are the bridge becoming a root bridge or a designated bridge for the LAN. The priority values can be set only in increments of 4096.

3. Command Syntax:

bridge GROUP instance INSTANCE_ID priority BRIDGE_PRIORITY

no bridge GROUP instance INSTANCE_ID priority

GROUP <1-1> Specify the bridge-group ID.

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Black Box LEH1008A-2GSFP, LEH906A-2SFP, LEH908A, LEH906A-2MMST, LEH906A-2GSFP, LEH906A-2MMSC manual Mstp Instance Setting

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