3.Protection types

Protection type

Description

 

Set the port as an edge port.

 

Some ports of access layer devices are directly connected to PCs or file servers,

 

which cannot generate BPDUs. You can set these ports as edge ports to achieve

Edged Port

fast transition for these ports.

 

HP recommends you to enable the BPDU guard function in conjunction with the

 

edged port function to avoid network topology changes when the edge ports

 

receive configuration BPDUs.

 

 

 

Enable the root guard function.

Root Protection

Configuration errors or attacks may result in configuration BPDUs with their

priorities higher than that of a root bridge, which causes a new root bridge to be

 

elected and network topology change to occur. The root guard function is used to

 

address such a problem.

 

 

 

Enable the loop guard function.

 

By keeping receiving BPDUs from the upstream device, a device can maintain the

Loop Protection

state of the root port and other blocked ports. These BPDUs may get lost because of

network congestion or unidirectional link failures. In this case, the device will

 

 

re-elect a root port, and blocked ports may transit to the forwarding state, causing

 

loops in the network. The loop guard function is used to address such a problem.

 

 

Return to MSTP configuration task list.

Displaying MSTP information of a port

Select Network MSTP from the navigation tree, and click the Port Summary tab to enter the page shown in a.

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HP V1910 manual Displaying Mstp information of a port, Protection types, Protection type Description