Avaya BSG8/12 1.0 Configuration Guide download pdf (Page 118)

118 VLAN advanced configuration

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MSTP configuration

MSTP isolates link fluctuations on a particular VLAN segment and provides load balancing.

Spanning tree to VLAN mapping can be configured on a per VLAN basis or multiple VLANs can

be mapped to the same spanning tree.

Prerequisites to MSTP configuration

• You must disable RSTP and enable MSTP before configuring MSTP. See “STP basic settings

configuration parameters” on page 117.

MSTP configuration navigation

• MSTP basic settings configuration parameters (page 118)

• CIST configuration parameters (page 119)

• MSTP VLAN mapping configuration parameters (page 120)

• MSTP port settings configuration parameters (page 121)

• CIST port status display parameters (page 122)

MSTP basic settings configuration parameters

The following section describes the parameters for configuration of MSTP basic settings located at

Configuration,

Spanning Tree, MSTP, Basic Settings tab.

Variable definitions

The following table describes the variables and values for configuring the MSTP basic settings.

Variable Value

MSTP Status Displays the MSTP status. The status displayed is based on the MSTP

setting (Enable or Disable) selected in STP Basic Settings.

Compatibility Set the compatibility version for MSTP. Select one of the following options:

• STP Compatible – indicates that the port is in STP Compatible mode.

• RSTP – indicates that the port is in RSTP mode.

• MSTP – indicates that the port is in MSTP mode.

The default value is MSTP.

Bridge Priority Type the bridge priority value that is used to select the root bridge.

The value ranges from 0 to 61440.

The values for bridge priority must be in steps of 4096.

The default value is 32768.

Transmit Hold Count Type the maximum number of packets that can be sent in an interval.

The value ranges from 1 to 10.

The default value is 3.

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Avaya BSG8/12 1.0 Configuration Guide Page 118