Displaying Mstp Information Of A Port - HP 1910 User Manual

Table 62 Protection types
Protection type
Edged Port
Root Protection
Loop Protection

Displaying MSTP information of a port

1. From the navigation tree, select Network > MSTP.
2. Click the Port Summary tab.
3. Select a port (GigabitEthernet 1/0/16 for example) on the chassis front panel.
If aggregate interfaces are configured on the device, the page displays a list of aggregate
interfaces below the chassis front panel. You can select aggregate interfaces from this list. The
lower part of the page displays the MSTP information of the port in MSTI 0 (when STP is enabled
globally) or the STP status and statistics (when STP is not enabled globally), the MSTI to which the
port belongs, and the path cost and priority of the port in the MSTI.
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
fast transition for these ports.
HP recommends that you 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.
Configuration errors or attacks might 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 state of the root port and other blocked ports. These BPDUs might get lost
because of network congestion or unidirectional link failures. The device will
re-elect a root port, and blocked ports might transit to the forwarding state,
causing loops in the network. The loop guard function is used to address such
a problem.
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