Mstp Example Configuration - NETGEAR GS748T Software Administration Manual

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.
Switch 1
Root Bridge
Connected to Switch 1 and 2
Perform the following procedures on each switch to configure MSTP:
1. Use the VLAN Configuration screen to create VLANs 300 and 500 (see
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
3. From the STP Configuration screen, enable the Spanning Tree State option (see
Switch Configuration
4. In the Configuration 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 Configuration screen, set the Bridge Priority value for each of the three
switches to force Switch 1 to be the root bridge:
• Switch 1: 4096
• Switch 2: 12288
• Switch 3: 20480
Note: Bridge priority values are multiples of 4096.
GS748T Smart Switch
Ports g1-g5
Connected to Hosts
Connected to Hosts
Ports g6-g8
Connected to Switch 2 and 3
Ports g6-g8
Switch 3
Ports g1-g5
Connected to Hosts
on page 97).
291
Ports g1-g5
Switch 2
VLAN Membership Configuration
VLAN
on page 87).
STP