JetStream  52-Port Gigabit Stackable L3 Managed Switch  CLI Guide 
 
itself automatically as ERROR-PORT when it receives BPDU packets, and the 
port will disable the forwarding function for a while. To disable the BPDU 
protect function, please use no spanning-tree bpduguard command. 
Syntax 
spanning-tree bpduguard 
no spanning-tree bpduguard 
Command Mode 
Interface Configuration Mode (interface fastEthernet / interface range 
fastEthernet / interface gigabitEthernet / interface range gigabitEthernet/ 
interface ten-gigabitEthernet / interface range ten-gigabitEthernet / interface 
port-channel) 
Example 
Enable the BPDU protect function for Gigabit Ethernet port 1/0/2: 
T3700G-52TQ(config)#interface gigabitEthernet 1/0/2 
T3700G-52TQ(config-if)#spanning-tree bpduguard 
30.17  spanning-tree bpduflood 
Description   
The  spanning-tree bpduflood  command is used to enable the BPDU flood 
function for a port, it takes effect only when spanning tree function is globally 
disabled. With the function enabled, the port can forward BPDU packets to 
other  BPDU-flood-enabled ports. To disable the BPDU flood function, please 
use no spanning-tree bpduflood command.   
Syntax   
spanning-tree bpduflood 
no spanning-tree bpduflood   
Command Mode   
Interface  Configuration  Mode (interface gigabitEthernet / interface range 
gigabitEthernet/interface port-channel/interface range port-channel) 
Example 
Enable the BPDU flood function for Gigabit Ethernet port 1/0/2: 
T3700G-52TQ(config)#interface gigabitEthernet 1/0/2 
T3700G-52TQ(config-if)#spanning-tree bpduflood 
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