NETGEAR M4350-24F4V 24-Port 10G SFP+ Managed AV Network Switch - Manual (Page 927)

If you do not specify a root bridge and all switches are assigned the same bridge
priority value, the switch with the lowest MAC address is elected as the root bridge
(see Configure the CST settings and display the CST status on page 282).
5. On the CST Port Configuration page, select ports 1 through 8 and select Enable
from the STP Status menu (see Configure the CST interface settings on page 284).
6. Click the Apply button.
7. Select ports 1 through 5 (edge ports), and select Enable from the Fast Link menu.
Because the edge ports are not at risk for network loops, ports with Fast Link enabled
transition directly to the forwarding state.
8. Click the Apply button.
You can use the CST Port Status page to view spanning tree information about each
port.
9. On the MST Configuration page (Manage MST instances on page 289), create an MST
instance with the following settings:
• MST ID: 1
• Priority: Use the default (32768)
• VLAN ID: 300
10. Click the Add button.
11. Create a second MST instance with the following settings:
• MST ID: 2
• Priority: 49152
• VLAN ID: 500
12. Click the Add button.
In this example, assume that Switch 1 became the root bridge for the MST instance 1,
and Switch 2 became the root bridge for MST instance 2. Switch 3 supports hosts in the
sales department (ports 1, 2, and 3) and in the HR department (ports 4 and 5). Switches
1 and 2 also include hosts in the sales and HR departments. The hosts connected from
Switch 2 use VLAN 500, MST instance 2 to communicate with the hosts on Switch 3
directly. Likewise, hosts of Switch 1 use VLAN 300, MST instance 1 to communicate with
the hosts on Switch 3 directly.
The hosts use different instances of MSTP to effectively use the links across the switch.
The same concept can be extended to other switches and more instances of MSTP.
Main User Manual 927 Configuration Examples
Fully Managed Switches M4350 Series Main User Manual