User Manual

8-Port Gigabit (PoE+) Ethernet Smart Managed Pro Switch with (2 SFP or 2 Copper Ports and)
Cloud Management
Configure Switching User Manual183
The following table describes the MSTP Status information that is displayed.
Table 34. STP advanced CST configuration, MSTP status
Field Description
MST ID The MST instances (including the CST) and the corresponding VLAN IDs associated with each
of them.
VID ID The VLAN IDs (VIDs) and the corresponding filtering IDs (FIDs) associated with each of them.
FID ID The FIDs and the corresponding VLAN IDs associated with each of them.
Configure the CST port settings
You can configure a common spanning tree (CST) and internal spanning tree on a specific
port on the switch.
A port can become diagnostically disabled (D-Disable) if a severe DOT1S error condition
occurs. The most common cause is that BPDU flooding occurs for DOT1S, for example, if
DOT1S receives more than 15 BPDUs during 3 seconds. Other causes for DOT1S D-Disable
are rare.
To configure the CST port 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
Access the switch on-network and
connected to the Internet on page 20 or Access the switch off-network and not
connected to the Internet on page 28.
The Device UI login page displays.
If you did not yet activate your warranty, the Register to activate your warranty page
displays. For more information, see
Register the switch on page 31.
4. Enter one of the following passwords:
• Enter your device admin password.
• If you previously managed the switch through the Insight app or Cloud portal, enter
the Insight network password for the last Insight network locat
ion.
For information about the credentials, see
Credentials for the device UI on page 29.
5. Click the Go
button.
The System Information page displays.
6. Select Switching > STP
> Advanced > CST Port Configuration.