NETGEAR M7100 Series User Manual page 759

M6100, M5300, and M7100 Series Managed Switches
From the CST Configuration screen, set the Bridge Priority value for each of the three
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switches to force Switch 1 to be the root bridge:
Switch 1: 4096
•
Switch 2: 12288
•
Switch 3: 20480
•
Bridge priority values are multiples of 4096.
Note:
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 CST Settings
From the CST Port Configuration screen, select ports 1/0/1–1/0/8 and select Enable from
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the STP Status menu (see
Click the Apply button.
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Select ports 1/0/1–1/0/5 (edge ports), and select Enable from the Fast Link menu.
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Since the edge ports are not at risk for network loops, ports with Fast Link enabled
transition directly to the Forwarding state.
Click the Apply button.
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You can use the CST Port Status screen to view spanning tree information about each
port.
From the MST Configuration screen, create a MST instances with the following settings:
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MST ID: 1
•
Priority: Use the default (32768)
•
VLAN ID: 300
•
For more information, see
Click the Add button.
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Create a second MST instance with the following settings
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MST ID: 2
•
Priority: 49152
•
VLAN ID: 500
•
Click the Add button.
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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 1/0/1, 1/0/2, and 1/0/3) and in the HR department (ports 1/0/4 and
1/0/5). Switches 1 and 2 also include hosts in the Sales and Human Resources 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.
on page 234).
Configure CST Port Settings
Configure MST Settings
Configuration Examples
759
on page 236).
on page 240.