ZyXEL Communications GS1900 CIST, State, Apply, Cancel, P2P MAC, Migrate, STP Port, Port List, Edge Port, BPDU Filter, External Path, Cost (0=Auto), Click Apply to save the changes

Chapter 25 Configuration: Spanning Tree

Figure 127 Configuration > Spanning Tree > STP Port > Edit

The following table describes the labels in this screen.

Table 109 Configuration > Spanning Tree > STP Port > Edit

LABEL	DESCRIPTION
STP Port
Port List	Enter the index number of the STP port(s).
External Path	Enter the external path cost. Enter 0 for Auto.
Cost (0=Auto)
State	Select the state of the STP port as enabled or disabled.
Edge Port	Select this check box to configure a port as an edge port when it is directly attached to a
	computer. An edge port changes its initial STP port state from blocking state to forwarding
	state immediately without going through listening and learning states right after the port is
	configured as an edge port or when its link status changes.

	Note: An edge port becomes a non-edge port as soon as it receives a
	Bridge Protocol Data Unit (BPDU).
BPDU Filter	Select Yes to activate BPDU filter or No to deactivate it.
P2P MAC	Select Yes to activate P2P MAC or No to deactivate it.
Migrate	Select Yes to activate Migrate or No to deactivate it.
Apply	Click Apply to save the changes.
Cancel	Click Cancel to discard the changes.

25.2.4 The CIST Screen

Use this screen to view the CIST settings. Click Configuration > Spanning Tree > CIST to open this screen.

146
	GS1900 Series User’s Guide