H3C Technologies H3C WX5500E Series Access Controllers - Manual (Page 190)

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Item Description
tc-protection
Select whether to enable TC-BPDU guard.
When receiving topology change (TC) BPDUs, the device flushes its forwarding
address entries. If someone forges TC-BPDUs to attack the device, the device will
receive a large number of TC-BPDUs within a short time and frequently flushes its
forwarding address entries. This affects network stability.
With the TC-BPDU guard function, you can prevent frequent flushing of forwarding
address entries.
H3C does not recommend you to disable this function.
tc-protection threshold
Set the maximum number of immediate forwarding address entry flushes the device
can perform within a certain period of time after receiving the first TC-BPDU.
Configuring MSTP on a port
1. Select Network > MSTP from the navigation tree.
2. Click the Port Setup tab to enter the page for configuring MSTP on ports.
Figure 171 MSTP configuration on a port
3. Configure MSTP for ports as described in Table 63 .
4. Click Apply.
Table 63 Configuration items
Item Description
STP Select whether to enable STP on the port.