119
Command Mode
Global Configuration Mode
Example
Configure the bridge priority as 4096:
TL-SL2428(config)# spanning-tree priority
4096
spanning-tree tc-defend
Description
The
spanning-tree tc-defend
command is used to configure the TC Protect of
Spanning Tree globally. To return to the default configuration, please use
no
spanning-tree tc-defend
command. A switch removes MAC address entries
upon receiving TC-BPDUs. If a malicious user continuously sends TC-BPDUs to
a switch, the switch will be busy with removing MAC address entries, which may
decrease the performance and stability of the network.
Syntax
spanning-tree tc-defend
threshold
threshold
period
period
no spanning-tree tc-defend
Parameter
threshold
——
TC Threshold, ranging from 1 to 100 packets. By default, it is 20.
TC Threshold is the maximum number of the TC-BPDUs received by the switch
in a TC Protect Cycle.
period
——
TC Protect Cycle, ranging from 1 to 10 in seconds. By default, it is 5.
Command Mode
Global Configuration Mode
Example
Configure TC Threshold as 30 packets and TC Protect Cycle as 10 seconds:
TL-SL2428(config)# spanning-tree tc-defend threshold
30
period
10
spanning-tree timer
Description
The
spanning-tree timer
command is used to configure forward-time,
hello-time and max-age of Spanning Tree. To return to the default configurations,
please use
no spanning-tree timer
command.
