Planet GS-4210-8P2S User Manual download pdf (Page 152)

User’s Manual of GS-4210 Series

4.6.3 STP Port Setting

This page allows you to configure per port STP settings. The STP Port Setting screens in Figure 4-6-6 & Figure 4-6-7 appear.

Figure 4-6-6 STP Port Configuration Page Screenshot

The page includes the following fields:

Object Description

 Port Select

Select port number for this drop down list.

 External Cost (0 =

Auto)

Controls the path cost incurred by the port.

The Auto setting will set the path cost as appropriate by the physical link speed,

using the 802.1D recommended values. Using the Specific setting, a

user-defined value can be entered.

The path cost is used when establishing the active topology of the network.

Lower path cost ports are chosen as forwarding ports in favor of higher path cost

ports. Valid values are in the range 1 to 200000000.

 Edge Port

Controls whether the operEdge flag should start as beeing set or cleared. (The

initial operEdge state when a port is initialized).

 BPDU Filter

Control whether a port explicitly configured as Edge will transmit and receive

BPDUs.

 BPDU Guard

Control whether a port explicitly configured as Edge will disable itself upon

reception of a BPDU.

The port will enter the error-disabled state, and will be removed from the active

topology.

 P2P MAC

Controls whether the port connects to a point-to-point LAN rather than a shared

medium.

This can be automatically determined, or forced either true or false. Transition to

the forwarding state is faster for point-to-point LANs than for shared media.

(This applies to physical ports only. Aggregations are always forced Point2Point).

 Migrate

If at any time the switch detects STP BPDUs, including Configuration or

Topology Change Notification BPDUs, it will automatically set the selected

interface to forced STP-compatible mode.

However, you can also use the Protocol Migration button to manually re-check

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Planet GS-4210-8P2S User Manual Page 152