Cst Configuration - NETGEAR GS748Tv4 Software Administration Manual

The following table describes the STP Status information displayed on the screen.
Field
Bridge Identifier
Time Since Topology Change The time in seconds since the topology of the CST last changed.
Topology Change Count
Topology Change
Designated Root
Root Path Cost
Root Port
Max Age (secs)
Forward Delay (secs)
Hold TIme (secs)
CST Regional Root
CST Path Cost
Click Refresh to update the information on the screen with the most current data.

CST Configuration

Use the Spanning Tree CST Configuration page to configure Common Spanning Tree (CST)
and Internal Spanning Tree on the switch.
To display the Spanning Tree CST Configuration page, click Switching > STP > Advanced >
CST Configuration.
96 | Chapter 3: Configuring Switching Information
GS748T Smart Switch Software Administration Manual
Description
The bridge identifier for the CST. It is made up using the bridge priority and
the base MAC address of the bridge.
The number of times the topology has changed for the CST.
The value of the topology change parameter for the switch indicating if a
topology change is in progress on any port assigned to the CST. The value is
either True or False.
The bridge identifier of the root bridge. It is made up from the bridge priority
and the base MAC address of the bridge.
Path cost to the Designated Root for the CST.
Port to access the Designated Root for the CST.
Specifies the bridge maximum age for CST. The value must be less than or
equal to (2 X Bridge Forward Delay) – 1 and greater than or equal to 2 X
(Bridge Hello Time +1).
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.