Cabletron Systems STS16-20R, STS16-20D manual Hello Time, PId Port ID

Models: STS16-20R STS16-20D

1 258
Download 258 pages 63.79 Kb
Page 203
Image 203

189

Hello Time

Time (in seconds) that the root waits between sending configuration messages. This time is advertised by the root and used by all devices and switches in the active topology of the spanning-tree network.

Max Message Age

Time at which the configuration message used by the spanning tree algorithm should be discarded. This time is advertised by the root and used by all devices and switches in the active topology of the spanning tree network.

Forward Delay

Time the root waits between transitions from listening to learning, and from learning to forwarding. This time is advertised by the root and used by all devices and switches in the active topology of the spanning tree network.

Port

Port number.

PId (Port ID)

Port ID that is used to determine the role of the port in the spanning tree. The port ID is expressed in the form port priority.port number.

PCst (Port Cost)

Cost associated with each port. Lower numbers are generally assigned to ports attached to faster media (such as FDX or CrossLink), and higher numbers are generally assigned to ports attached to slower media (such as 2400-baud modem links).

PSts (Port Status)

Current status of this port within the spanning tree. Possible values are:

DIS (Disabled)

BLK (Blocked)

LSN (Listening)

LRN (Learning)

FWD (Forwarding)

DWN (Down)

DCst (Designated Cost)

Cost for a packet to travel from this port to the root in the current spanning tree configuration. Found by adding all path cost to the root when using the designated port.

Monitoring the Network from the Console Statistics Menu SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide

Page 203
Image 203
Cabletron Systems STS16-20R, STS16-20D manual Hello Time, PId Port ID