Netgear XSM4324FS User Manual - Page 220

M4300 Intelligent Edge Series Fully Managed Stackable Switches set to the next lowest priority that is a multiple of 4096. For example, if the priority is attempted to be set to any value between 0 and 4095, it is set to 0. The default priority is 32768. • Bridge Max Age (secs). 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 valid range is 6-40, and 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 default value is 20. • Bridge Hello Time (secs). The bridge 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. The value must be less than or equal to (Bridge Max Age / 2) - 1. The default hello time value is 2. • Bridge Forward Delay (secs). The bridge 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 time range is from 4 seconds to 30 seconds. The default value is 15 seconds. • Spanning Tree Maximum Hops. The maximum number of bridge hops the information for a particular CST instance can travel before being discarded. The valid range is 6-40. The default is 20 hops. • Spanning Tree Tx Hold Count. Configures the maximum number of bpdus the bridge is allowed to send within the hello time window. The valid range is 1-10. The default value is 6. 6. Click the Apply button. Your settings are saved. The following table describes the CST Status information that is displayed. Table 76. STP Advanced CST Configuration Field Bridge identifier Time since topology change Topology change count Topology change Designated root Root Path Cost Root Port Identifier Max Age(secs) Description The bridge identifier for the CST. It is made up using the bridge priority and the base MAC address of the bridge. The time in seconds since the topology of the CST last changed. Number of times topology changed for the CST. The value of the topology change parameter for the switch indicating if a topology change is in progress on any port assigned to the CST. It takes a value if True or False. The bridge identifier of the root bridge. It is made up from the bridge priority and the base MAC address of the bridge. Path Cost to the Designated Root for the CST. Port to access the Designated Root for the CST. Path Cost to the Designated Root for the CST. Configure Switching Information 220 User Manual