T3700G-28TQ
 
JetStream 28-Port Gigabit Stackable L3 Managed Switch CLI Guide 
 
82 
ip dhcp snooping global 
Description 
The ip dhcp snooping global command is configure DHCP Snooping globally. 
To restore to the default value, please use no dhcp snooping global 
command. 
Syntax 
ip dhcp snooping global { global-rate  global-rate | dec-threshold 
dec-threshold | dec-rate dec-rate } 
no ip dhcp snooping global { dec-threshhold | global-rate } 
Parameter 
global-rate —— The value to specify the maximum amount of DHCP messages 
that can be forwarded by the switch per second. The excessive messages will 
be discarded. The options are 10/20/30/40/50 (packet/second).By default, it is 0 
standing for “disable”. 
dec-threshold ——The value to specify the minimum transmission rate of the 
Decline packets to trigger the Decline protection for the specific port. The 
options are 5/10/15/20/25/30 (packet/second).By default, it is 0 standing for 
“disable”. 
dec-rate ——The value to specify the Decline Flow Control. The traffic flow of 
the corresponding port will be limited to be this value if the transmission rate of 
the Decline packets exceeds the Decline Threshold. The options are 
5/10/15/20/25/30 (packet/second). By default, it is 5. 
Command Mode 
Global Configuration Mode 
Example 
Configure the Global Flow Control as 30pps for DHCP Snooping: 
T3700G-28TQ(config)#ip dhcp snooping global global-rate 30