NETGEAR AV Line M4250 GSM4210PX 8-Port Gigabit PoE+ Compliant Managed AV Switch with SFP (220W) - Manual (Page 231)

Table 57. CST status information (Continued)
Description Field
The bridge identifier of the root bridge, which consist of he bridge priority
and the base MAC address of the bridge. Designated Root
The path cost to the designated root for the CST. Root Path Cost
The port through which the designated root for the CST is accessed. Root Port
The period in seconds that passes before a bridge port saves its
configuration BPDU information. Max Age (secs)
The period in seconds that the root port bridge delays the forwarding
process. This period is a derived value. Forward Delay (secs)
The minimum period between the transmission of configuration BPDUs. Hold Time (secs)
The priority and base MAC address of the CST regional root. CST Regional Root
The path cost to the CST regional root. CST Path Cost
The port on which the topology change (TC) is triggered, Port Triggered TC
Configure the CST interface settings
You can configure a common spanning tree (CST) and internal spanning tree on a
specific interface on the switch.
An interface can become diagnostically disabled (D-Disable) when a severe error
condition occurs for DOT1S. The most common cause is when BPDU flooding occurs.
The flooding criteria are such that DOT1S receives more than 15 BPDUs in a 3-second
interval. (Other causes for a DOT1S D-Disable condition are very rare.)
To configure the CST interface settings:
1. Launch a web browser.
2. In the address field of your web browser, enter the IP address of the switch.
The login page displays.
3. Click the Main UI Login button.
The main UI login page displays in a new tab.
4. Enter admin as the user name, enter your local device password, and click the Login
button.
The first time that you log in, no password is required. However, you then must
specify a local device password to use each subsequent time that you log in.
The System Information page displays.
Main User Manual 231 Configure Switching Information
AV Line of Fully Managed Switches M4250 Series Main User Manual