Configure Cst Port Settings - NETGEAR M4300 User Manual

M4300 Series and M4300-96X Fully Managed Switches User Manual
Table 75. STP Advanced CST Configuration
Field
Forward Delay(secs)
Hold Time(secs)
CST Regional Root
CST Path Cost

Configure CST Port Settings

You can configure the Common Spanning Tree (CST) and Internal Spanning Tree on a
specific port on the switch.
A port can become Diagnostically Disabled (D-Disable) when DOT1S experiences a severe
error condition. The most common cause is when the DOT1S software experiences BPDU
flooding. The flooding criteria is such that DOT1S receives more than 15 BPDUs in a
3-second interval. The other causes for DOT1S D-Disable are extremely rare.

To configure CST port settings:
Launch a web browser.
1.
In the address field of your web browser, enter the IP address of the switch.
2.
The login window opens.
Enter the user name and password.
3.
The default admin user name is admin and the default admin password is blank, that is,
do not enter a password.
Click the Login button.
4.
The System Information page displays.
Select Switching > STP > Advanced > CST Port Configuration.
5.
Select an interface.
6.
You can select a physical or port channel interface associated with VLANs associated
with the CST.
Use Port Priority to specify the priority for a particular port within the CST.
7.
Description
Derived value of the Root Port Bridge Forward Delay parameter.
Minimum time between transmission of Configuration BPDUs.
Priority and base MAC address of the CST Regional Root.
Path Cost to the CST tree Regional Root.
Configure Switching Information
217