TP-Link TL-SL5428E Switch User Manual


 
With BPDU filter function
enabled, a port does not receive or forward BPDUs, but it sends out its
own BPDUs. Such a mechanism prevents the switch from being attacked by BPDUs so as to
guarantee generation the spanning trees correct.
Choose the menu Spanning TreeSTP SecurityPort Protect to load the following page.
Figure 7-10 Port Protect
The following entries are displayed on this screen:
Port Protect
Port Select: Click the Select button to quick-select the corresponding port based
on the port number you entered.
Select: Select the desired port for port protect configuration. It is
multi-optional.
Port: Displays the port number of the switch.
Loop Protect: Loop Protect is to prevent the loops in the network brought by
recalculating STP because of link failures and network congestions.
Root Protect: Root Protect is to prevent wrong network topology change caused by
the role change of the current legal root bridge.
TC Protect: TC Protect is to prevent the decrease of the performance and stability
of the switch brought by continuously removing MAC address entries
upon receiving TC-BPDUs in the STP network.
BPDU Protect: BPDU Protect is to prevent the edge port from being attacked by
maliciously created BPDUs
BPDU Filter: BPDU Filter is to prevent BPDUs flood in the STP network.
LAG: Displays the LAG number which the port belongs to.
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