Nortel 8300 User Manual page 101

Field
PathCost
DesignatedRoot
DesignatedCost
DesignatedBridge
DesignatedPort
ForwardTransitions
ChangeDetection
Enabling STP on a port
To enable STP for a port:
Step
1
2
3
4
5
Configuration — VLANs, Spanning Tree, and Static Link Aggregation using Device Manager
Copyright © 2005-2007, Nortel Networks
.
Description
The contribution of this port to the path cost of paths toward the
spanning tree root that includes this port. The 802.1D-1990 protocol
recommends that the default value of this parameter be in inverse
proportion to the speed of the attached LAN.
The unique Bridge Identifier of the bridge recorded as the root in the
configuration BPDUs. The configuration BPDUs are transmitted by the
Designated Bridge for the segment the port is attached to.
The path cost of the Designated Port of the segment connected to this
port. This value is compared to the Root Path Cost field in received
BPDUs.
The Bridge Identifier of the bridge that this port considers to be the
Designated Bridge for this segment.
The Port Identifier Designated Bridge port for this segment.
The number of times this port transitioned from the Learning state to
the Forwarding state.
The change detection setting (true or false) for this port. This value can
be configured on access ports only. If you enable change detection
on an MLT with access ports, the setting is automatically applied to
all ports in the MLT.See"Spanning Tree Protocol topology change
detection" (page 29).
Action
Select VLAN > STG from the Device Manager menu bar.
The STG dialog box appears, with the Globals tab selected. See
"STG dialog box - Globals tab" (page
Click the Ports tab.
The Ports tab appears.See
Double-click the EnableStp field for the port you want to enable (if
the port is not enabled, false appears in the field).
The drop-down list appears.
Select true from the drop-down list.
The EnableStp field setting changes.
Click Apply.
STP is enabled for the port.
Nortel Ethernet Routing Switch 8300
NN46200-510 03.01 Standard
4.0 27 August 2007
Spanning tree groups 101
92).
"STG dialog box - Ports tab" (page 99).