GE MULTILINK ML1200 User Manual

Page 201

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CHAPTER 12: SPANNING TREE PROTOCOL (STP)

SPANNING TREE PROTOCOL (STP)

MULTILINK ML1200 MANAGED FIELD SWITCH – INSTRUCTION MANUAL

12–5

Priority

: STP uses this to determine which ports are used for forwarding. Lower the

number means higher priority. Value ranges from 0 to 255. Default is 128

Path Cost

: This is the assigned port cost value used for the switch to determine the

forwarding points. Values range from 1 to 65535

State

: indicates the STP state of individual ports. Values can be Listening, Learning,

Forwarding, Blocking and Disabled.

Des. Bridge

: This is the port's designated root bridge

Des. Port

: This is the port's designated root port

To enable or disable STP, enter the STP configuration mode via the

stp

command and use

the

stp enable

or

stp disable

command.

To

stp

command enters STP configuration mode:

stp

The

enable

and

disable

parameters start (enable) or stop (disable) STP.

stp <enable|disable>

The

stp

and

rstp

parameters set the spanning tree protocol to be IEEE 802.1d or 802.1w

(Rapid Spanning Tree Protocol).

set stp type=<stp|rstp>

The

show active-stp

command display which version of STP is currently active.

show active-stp

Note

Incorrect STP settings can adversely affect network performance. GE recommends starting
with the default STP settings. Changing the settings requires a detailed understanding of
STP. For more information on STP, please refer to the IEEE 802.1d standard.

Note

It is always a good idea to check which mode of STP is active. If the proper mode is not
active, the configuration command

stp

will not be understood. To set the proper mode,

use the

set stp

command.

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