Configure Switching
137
Insight Managed 28-Port Gigabit Ethernet Smart Cloud Switch with 2 SFP 1G & 2 SFP+ 10G Fiber Ports
Configure CST Settings
You can configure a Common Spanning Tree (CST) and Internal Spanning Tree on the
switch.
To configure CST settings:
1.
Connect your computer to the same network as the switch.
You can use a WiFi or wired connection to connect your computer to the network, or
connect directly to a switch that is off-network using an Ethernet cable.
2.
Launch a web browser.
3.
In the address field of your web browser, enter the IP address of the switch.
If you do not know the IP address of the switch, see
The login window opens.
4.
Enter the switch’s password in the
password
field.
The default password is
password
. If you added the switch to a network on the Insight
app before and you did not yet change the password through the local browser interface,
enter your Insight network password.
The System Information page displays.
5.
Select
Switching > STP > Advanced > CST Configuration
.
The CST Configuration page displays.
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 valid range is 0–61440. 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
Forward Delay (secs)
The derived value of the Root Port Bridge Forward Delay parameter.
Hold Time (secs)
Minimum time in seconds between the transmission of configuration
BPDUs.
CST Regional Root
Priority and base MAC address of the CST regional root.
CST Path Cost
Path cost to the CST tree regional root.
Table 32. STP configuration status (continued)
Field
Description
