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Centillion Common Application

Bridges

Application Views Bay Networks Centillion 100

4-20 Management Module Guide

Bridge Forward Delay

The value that all bridges use for ForwardDelay when this bridge is acting

as the root. Note that 802.1D-1990 speciﬁes that the range for this parameter

is related to the value of cndot1dStpBridgeMaxAge. The granularity of this

timer is speciﬁed by 802.1D-1990 to be 1 second. An agent may return a

badValue error if a set is attempted to a value which is not a whole number of

seconds.

This view also contains the Spanning Tree Port Table view which provides the

following information:

Port

The number of the port for which this entry contains Spanning Tree Protocol

management information.

Priority

The value of the priority ﬁeld which is contained in the ﬁrst (in network byte

order) octet of the (2 octet long) Port ID. The other octet of the Port ID is given

by the value of cndot1dStpPort.

State

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(6) state. For ports which are disabled (see

cndot1dStpPortEnable), this object will have a value of disabled(1).

Possible values are: disabled, blocking, listening. learning, forwarding, and

broken.

Status

The enabled/disabled status of the port.

Path Cost

The contribution of this port to the path cost of paths towards the spanning

tree root which include this port. 802.1D-1990 recommends that the default

value of this parameter be in inverse proportion to the speed of the attached

LAN.

Designated Root

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.

Designated Cost

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.

Designated Bridge

The Bridge Identiﬁer of the bridge which this port considers to be the

Designated Bridge for this port's segment.

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