
GS716Tv2 and GS724Tv3 Software Administration Manual
Configuration Examples
B-15
v1.0, July 2009
If you do not specify a root bridge and all switches have the same Bridge Priority value, the
switch with the lowest MAC address is elected as the root bridge (see
“CST Configuration” on
page
3-19
).
5.
From the CST Port Configuration screen, select ports g1–g10 and g15–g24 and select Enable
from the STP Status menu (see
“CST Port Configuration” on page
3-21
).
6.
Click
Apply
.
7.
Select ports g1–g5 (edge ports), and select Enable from the Fast Link menu.
Since the edge ports are not at risk for network loops, ports with Fast Link enabled transition
directly to the Forwarding state.
8.
Click
Apply
.
You can use the CST Port Status screen to view spanning tree information about each port.
9.
From the MST Configuration screen, create a MST instances with the following settings:
•
MST ID: 1
•
Priority: Use the default (32768)
•
VLAN ID: 300
For more information, see
“MST Configuration” on page
3-26
.
10.
Click
Add
.
11.
Create a second MST instance with the following settings
•
MST ID: 2
•
Priority: 49152
•
VLAN ID: 500
12.
Click
Add
.
In this example, assume that Switch 1 has become the Root bridge for the MST instance 1, and
Switch 2 has become the Root bridge for MST instance 2. Switch 3 has hosts in the Sales
department (ports g1, g2 and g3) and in the HR department (ports g4 and g5). Switches 1 and 2
Note:
Bridge priority values are multiples of 4096.