POEGEM12T2SFP User Manual
3-14-3. STP Port Configuration
Fig.
Function name:
STP Port Configuration Function description:
The STP Port setting is used to configure the “path cost”, “priority”, “admin edge port” and the “admin point to point” settings. Each port can be configured individually by highlighting the port and clicking in the Edit button.
Parameters description:
Port Status:
Displays the current state of the port, there are three possible states according to the 802.1w standard.
Discarding: Indicates that this port can neither forward packets nor contribute in learning.
Note: Three other states Disable, Blocking and Listening defined in the 802.1d standard are now all represented as the Discarding state.
Learning: Indicates that this port can now contribute its learning knowledge but can not forward packets.
Forwarding: Indicates this port can both contribute its learning knowledge as well as forward packets normally.
Path Cost Status:
Determines the shortest path to the root bridge, the smaller the path cost value the more possible the port will become the root port.
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