Netgear GS728TPP GS728TP/GS728TPP/GS752TP Software Administration Manual - Page 95
Bridge Priority, Bridge Max Age Sec, Bridge Hello Time Sec, Bridge Forward Delay Sec.
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GS752TP, GS728TP, and GS728TPP Gigabit Smart Switches 2. Specify values for CST in the following fields: • Bridge Priority. Specify the bridge priority value for the Common and Internal Spanning Tree (CST). When switches or bridges are running STP, each is assigned a priority. After exchanging BPDUs, the switch with the lowest priority value becomes the root bridge. The bridge priority is a multiple of 4096. If you specify a priority that is not a multiple of 4096, the priority is automatically set to the next lowest priority that is a multiple of 4096. For example, if you set the priority to any value from 0 through 4095, it is set to 0. The valid range is 0-61440. The default priority is 32768. • Bridge Max Age (Sec). Specify the bridge maximum age time for the Common and Internal Spanning Tree (CST), which indicates the amount of time in seconds a bridge waits before implementing a topological change. The value must be less than or equal to (2 * bridge forward delay) - 1 and greater than or equal to 2 * (bridge hello time +1). The valid range is 6-40, and the default value is 20. • Bridge Hello Time (Sec). Specifies the switch hello time for the Common and Internal Spanning Tree (CST), which indicates the amount of time in seconds a root bridge waits between configuration messages. The value is fixed at 2 seconds. • Bridge Forward Delay (Sec). Specify the switch forward delay time, which indicates the amount of time in seconds a bridge remains in a listening and learning state before forwarding packets. The value must be greater or equal to (bridge max age / 2) + 1. The valid range is 4-30 seconds. The default value is 15. • Spanning Tree Maximum Hops. Specify the maximum number of bridge hops the information for a particular CST instance can travel before being discarded. The valid range is 1-40. 3. Click APPLY to send the updated configuration to the switch. Configuration changes take place immediately. The following table describes the MSTP Status information displayed on the CST Configuration screen: Configuring Switching Information 95