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Configuring Spanning Tree
Defining Multiple Spanning Tree
Page 199
Properties Page contains information for defining global MSTP settings, including region names, MSTP revisions,
and maximum hops. To define MSTP:
1. Click Advanced Setup > Spanning Tree > MSTP > Properties. The MSTP Properties Page opens:
Figure 127:MSTP Properties Page
The MSTP Properties Page contains the following fields:
• Region Name — User-defined STP region name.
• Revision — An unsigned 16-bit number that identifies the revision of the current MSTP configuration. The
revision number is required as part of the MSTP configuration. The possible field range is 0-65535.
•
Max Hops
— Specifies the total number of hops that occur in a specific region before the BPDU is discarded.
Once the BPDU is discarded, the port information is aged out. The possible field range is 1-40. The field default
is 20 hops.
• IST Master —
Identifies the Spanning Tree Master instance. The IST Master is the specified instance root.
2. Define the Region Name, Revision, and Max Hops fields.
3. Click . The MSTP properties are defined, and the device is updated.