D-Link DWS-3250 Product Manual - Page 200

Configuring Spanning Tree Defining Multiple Spanning Tree 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. Page 199