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GS748T Smart Switch
MSTP Example Configuration
This example shows how to create an MSTP instance from the GS748T switch. The example
network has three different GS748T switches that serve different locations in the network. In
this example, ports g1–g5 are connected to host stations, so those links are not subject to
network loops. Ports g6–g8 are connected across switches 1, 2, and 3.
Ports g1-g5
Switch 1
Connected to Hosts
Root Bridge
Switch 2
Switch 3
Ports g1-g5
Connected to Hosts
Ports g1-g5
Connected to Hosts
Ports g6-g8
Connected to Switch 2 and 3
Ports g6-g8
Connected to Switch 1 and 2
Perform the following procedures on each switch to configure MSTP:
1. Use the VLAN Config
uration screen to create VLANs 300 and 500 (see VLAN
Configuration on
page 86).
2. Use the VLAN
Membership screen to include ports g1–g8 as tagged (T) or untagged (U)
members of VLAN 300 and VLAN 500 (see VLAN Membership Configuration on p
age 87).
3. From the ST
P Configuration screen, enable the Spanning Tree State option (see STP
Switch Configuration on p
age 97).
4. In the Co
nfiguration Name field on the STP Configuration page, configure the name so that
it is the same on each switch, for example netgear-stp. By default, the Configuration Name
is the switch MAC address which means that it is unique for each switch.
5. From the CST Co
nfiguration screen, set the Bridge Priority value for each of the three
switches to force Switch 1 to be the root bridge:
• Swit
ch 1: 4096
• Swit
ch 2: 12288
• Swit
ch 3: 20480
Note: Bridge priority values are multiples of 4096.
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