Netgear FS526Tv2 - 24-Port Smart Switch with Gigabit Ports ユーザーガイド

Configure the settings as described in the following table.

Bridge Priority

The bridge priority value for the CST. Enter a number that is a multiple of 4096 
and that is in the range from 0 to 61440. The default priority is 32768.

When switches or bridges are running STP, each is assigned a priority. After the 
devices exchange BPDUs, the device with the lowest priority value becomes the 
root bridge. 

Bridge Max Age (secs)

The maximum age time for the CST in seconds. This is the period that an STP 
bridge or switch waits before implementing a topological change. Enter a 
number in the range from 6 to 40 seconds, considering that the period needs to 
be less than or equal to (2 * Bridge Forward Delay) – 1 and greater than or 
equal to 2 * (Bridge Hello Time +1). The default period is 20

 

seconds.

Bridge Hello Time (secs)

This is a nonconfigurable field that shows the hello time on the smart switch for 
the CST. This time is the period in seconds that a root bridge waits between 
configuration messages. The value is fixed at 2 seconds.

Bridge Forward Delay 
(secs)

The forward delay time for the smart switch, which is the period in seconds that 
a bridge remains in a listening and learning state before forwarding packets. 
Enter a number in the range from 4 to 30 seconds, considering that the period 
needs to be greater or equal to (Bridge Max Age / 2) + 1. The default period is 
15 seconds.

Click the Apply button.

The settings are saved. 

The CST Port Configuration screen lets you configure the settings for the Common Spanning 
Tree (CST) for individual ports and LAGs.



Select Switching > STP > Advanced > CST Port Configuration.

If you specify a priority that is not a multiple of 4096, the priority is 

automatically adjusted to the next lowest priority that is a multiple of 4096. For 
example, if you configure the priority to any value between 0 and 4095, the 
smart switch sets it to 0.