HP V1910, Руководство пользователя

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3.
Protection types
Protection type Description
Edged Port
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
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.
Root Protection
Enable the root guard function.
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.
Loop Protection
Enable the loop guard function.
By keeping receiving BPDUs from the upstream device, a device can maintain the
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 .