Dell PowerConnect 3548 Command Line Interface Guide - Page 360
spanning-tree max-age, spanning-tree priority
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spanning-tree max-age The spanning-tree max-age Global Configuration mode command configures the Spanning Tree bridge maximum age. Use the no form of this command to return to the default configuration. Syntax • spanning-tree max-age seconds • no spanning-tree max-age • seconds - Time in seconds. (Range: 6 - 40) Default Configuration The default maximum age for IEEE Spanning Tree Protocol (STP) is 20 seconds. Command Mode Global Configuration mode. User Guidelines When configuring the maximum age, the following relationships should be kept: - 2*(Forward-Time - 1) >= Max-Age - Max-Age >= 2*(Hello-Time + 1) Example The following example configures the Spanning Tree bridge maximum-age to 10 seconds. Console(config)# spanning-tree max-age 10 spanning-tree priority The spanning-tree priority Global Configuration mode command configures the Spanning Tree priority of the device. The priority value is used to determine which bridge is elected as the root bridge. Use the no form of this command to return to the default configuration. Syntax • spanning-tree priority priority • no spanning-tree priority • priority - Priority of the bridge. (Range: 0 - 61440 in steps of 4096) Default Configuration The default bridge priority for IEEE Spanning Tree Protocol (STP) is 32768. 360 Spanning-Tree Commands