User Manual

S350 Series 8-Port Gigabit Ethernet Smart Switch Models GS308T and GS310TP
Configure Switching User Manual136
If you do not know the IP address of the switch, see Discover or Change the Switch IP
Address on page 12.
Your web browser might display a security message, which you can ignore. For more
information, see Access the Local Browser Interface on page 18.
The login window opens.
4. Enter the switch’s password in the Password
field.
The default password is password.
The System Information page displays.
5. Select Switching > STP >
Advanced > CST Configuration.
6. Specify the CST options:
• Bridge Priority. 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. Specify the bridge priority value for the Common and Internal
Spanning Tree (CST). The range is from 0 to 61440. 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 between 0 and 4095, the switch automatically sets the
value to 0. The default value is 32768.
• Bridge Max Age (secs).
The bridge maximum age time for the Common and Internal
Spanning
Tree (CST), which indicates the time in seconds a bridge must wait before
implementing a topological change. The range is from 6 to 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 time in seconds a root bridge must wait
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
time in seconds a bridge must remains in a listening and learning state before