Cisco SF500-24, Administration Manual

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Configuring the Spanning Tree Protocol
Defining MSTP Instance Settings
Cisco 500 Series Stackable Managed Switch Administration Guide 246
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• VLANs —Define the VLANs being mapped to this MST instance.
• Action —Define whether to add (map) the VLAN to the MST instance or
remove it.
STEP 4
Click Apply . The MSTP VLAN mappings are defined, and the Running
Configuration file is updated.
Defining MSTP Instance Settings
The MSTP Instance Settings page enables you to configure and view parameters
per MST instance. This is the per-instance equivalent to the Configuring STP
Status and Global Settings .
To enter MSTP instance settings:
STEP 1
Click Spanning Tree > MSTP Instance Settings . The MSTP Instance Settings
page is displayed.
STEP 2
Enter the parameters.
• Instance ID —Select an MST instance to be displayed and defined.
• Included VLAN —Displays the VLANs mapped to the selected instance. The
default mapping is that all VLANs are mapped to the common and internal
spanning tree (CIST) instance 0).
• Bridge Priority —Set the priority of this bridge for the selected MST
instance.
• Designated Root Bridge ID —Displays the priority and MAC address of the
Root Bridge for the MST instance.
• Root Port —Displays the root port of the selected instance.
• Root Path Cost —Displays the root path cost of the selected instance.
• Bridge ID —Displays the bridge priority and the MAC address of this switch
for the selected instance.
• Remaining Hops —Displays the number of hops remaining to the next
destination.