Displaying Mstp Information Of A Port - 3Com Baseline 2928 PWR Plus User Manual

Table 1-11 Protection types
Protection type
Edged Port
Root Protection
Loop Protection
Return to MSTP configuration task

Displaying MSTP Information of a Port

Select Network > MSTP from the navigation tree, and then click Port Summary to enter the page
shown in Figure
Figure 1-10 The Port Summary tab
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.
You are recommended 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.
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 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.
list.
1-10.
Description
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