Intellinet 560559 User Manual page 40

As shown in the figure, configure Switch-A as the root bridge and S-switch-B as the
designated Bridge.
The links connected by S-switch-B and S-switch-C are backup links. When the links
connected by S-switch-B, S-switch-A and S-switch-C fail, the backup link will come
into effect.
S-switch-A Configuration：
Configure Ethernet0/0/1 and Ethernet0/0/2 as a trunk port.
1.
Configure spanning-tree priority as 0.
2.
Enable RSTP globally.
3.
S-switch-B Configuration：
Configure Ethernet0/0/1 and Ethernet0/0/2 as a trunk port.
1.
Configure spanning-tree priority as 4096, and configure the Ethernet0/0/1
2.
port path cost and the Ethernet0/0/2 port path cost as 10.
Enable RSTP globally.
3.
S-switch-C Configuration：
Configure Ethernet0/0/1 and Ethernet0/0/2 as a trunk port.
1.
Configure the Ethernet0/0/1 port path cost and Ethernet0/0/2 port path cost
2.
as 10 to ensure that the link between Switch-B and Switch-C is the main link.
Enable RSTP globally.
3.
Web Smart Managed PoE Switches User Manual
【Configuration example】
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