Allied Telesis FS750/24 Technical Information download pdf (Page 33)

AT-FS750/24-41 Web User Interface Manual

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Parameter

Description

System Control

To activate or shutdown the MSTP function. Select Start to activate the MSTP

function, Shutdown to shutdown MSTP function.

MSTP Status

To enable or disable the MSTP. Select Enabled to enable the MSTP function,

Disabled to disable the MSTP function.

Maximum MSTP

Instances

Specify the maximum number of MSTP instance allowed. The possible

number is 1-64. Default is 64.

Bridge Priority

Specify the bridge priority of spanning tree. Default is 32768.

Protocol Version

Select the spanning tree compatibility version. The possible options are STP,

RSTP and MSTP. Default is RSTP.

Region Name

Specify the region name of MST.

Region Version

Specify the MST reigon revision. The possible numbers are 0~65535, default

is 0.

Dynamic Path Cost

Calculation

Select the path cost calculation mode of spanning tree. Select True to enable

dynamic pathcost according to the port speed, False to disable it. Default if

False.

Click Apply to submit the changes.

Note

1. RSTP function must be shutdown before activate MSTP.

2. MSTP status must be enabled before configure other MSTP details.

MSTP Timers Configuration

This page is to configure the MSTP timers of the Switch.

Figure 39 – Layer2 Management > MSTP > Timers Configuration

Parameter

Description

Maximum Hop Count

Specify the maximum hops permitted in MST. Possible value is 6-40. Defalut

is 20.

Max Age

Specify the maximum age in second for STP information learned from the

network on any port before it is discarded. The possible value is 6-40. Default

is 20.

Forward Delay

Specify the time period in second that a port changes the STP state from

blocking to forwarding. The possible value is 4-30. Default is 15.

Transmit Hold Count

Specify the hold counter to limit maximum transmission rate of the Switch.

Default is 3.

Hello Time

Specify the time interval in second for a root bridge broadcasts the hello

packets to other switches. Possible value is 1-2. Default is 2.

CIST Settings

This page is to configure the port related MSTP settings.

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