Netgear M5300-52G-POE+ (GSM7252PSv1h2) - ProSAFE 48+4 L2+ POE Stackable Managed Switch Administrator's Guide

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STP 
549
 Managed Switches
Web Interface: Configure Multiple STP (802.1s)
1. 
Enable 802.1s on the switch.
a. Select Switching > STP > STP Configuration
A screen similar to the following displays.
b.  Enter the following information:
For Spanning Tree Admin Mode, select the Enable radio button. 
For Force Protocol Version, select the IEEE 802.1s radio button.
In the Configuration Name field, enter mstp_1.
In the Configuration Revision Level field, enter 0.
c.  Click Apply.
2. 
Configure MST.
a. Select Switching > STP > MST Configuration
A screen similar to the following displays.
b.  Configure MST ID 1.
In the MST ID field, enter 1
In the Priority field, enter 4096.
In the VLAN Id field, enter 2.
Click Add.
In the VLAN Id field, enter 3.
Click Apply.