Configuring Mac Learning Parameters - Nortel Passport 8600 Configuring

Table 13 STG tab fields (continued)
Field
State
EnableStp
FastStart
PathCost
DesignatedRoot
DesignatedCost
DesignatedBridge
DesignatedPort
ForwardTransitions
ChangeDetection

Configuring MAC learning parameters

You can configure the MAC learning parameters to control high-security
environments that restrict access to the network. This feature is based on the layer
2 media access control (MAC) address of the network devices connected to the
Passport 8000 Series switch.
Chapter 4 Configuring and graphing ports
Description
The port's current state as defined by application of the Spanning
Tree Protocol. This state controls what action a port takes on
reception of a frame. If the bridge has detected a port that is
malfunctioning, it will place that port into the broken state.
For ports that are disabled (see EnableStp), this object will have
a value of disabled.
The enabled/disabled spanning tree status of the port, which will
affect only the operation of the Spanning Tree Protocol on the
port. Disabling STP at the spanning tree group will take
precedence over what is configured here.
When FastStart is true, the port is enabled in the Forwarding
state upon being enabled. If the port receives a spanning tree
BPDU, the port will start normal STP negotiations.
The contribution of this port to the cost of paths toward the
spanning tree root, which include this port. The IEEE
802.1D-1990 standard 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 transmitted by the Designated Bridge
for the segment to which the port is attached.
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 bridge PDUs.
The Bridge Identifier of the bridge that this port considers to be
the Designated Bridge for this port's segment.
The Port Identifier of the port on the Designated Bridge for this
port's segment.
The number of times this port has transitioned from the Learning
state to the Forwarding state.
If this field is disabled, topology change notifications are not sent
for the port.
Configuring Network Management
95