Ip Dhcp Snooping Limit Rate - Cisco 4500M Command Reference Manual
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Chapter2
Cisco IOS Commands for the Catalyst 4500 Series Switches
ip dhcp snooping limit rate
To configure the number of DHCP messages an interface can receive per second, use the ip dhcp
snooping limit rate command. To disable DHCP snooping rate limiting, use the no form of this
command.
Syntax Description
rate
Defaults
DHCP snooping rate limiting is disabled.
Command Modes
Interface configuration
Command History
Release
12.1(12c)EW
Usage Guidelines
Normally, the rate limit applies to untrusted interfaces. If you want to set up rate limiting for trusted
interfaces, keep in mind that trusted interfaces aggregate all DHCP traffic in the switch, and you will
need to adjust the interfaces rate limit to a higher value.
Examples
This example shows how to enable DHCP message rate limiting:
Switch(config-if)# ip dhcp snooping limit rate 150
Switch(config)#
This example shows how to disable DHCP message rate limiting:
Switch(config-if)# no ip dhcp snooping limit rate
Switch(config)#
Related Commands
ip dhcp snooping
ip dhcp snooping information option
ip dhcp snooping trust
ip dhcp snooping vlan
show ip dhcp snooping
show ip dhcp snooping binding
78-16201-01
ip dhcp snooping limit rate rate
no ip dhcp snooping limit rate
Number of DHCP messages a switch can receive per second.
Modification
Support for this command was introduced on the Catalyst 4500 series switch.
Catalyst4500 Series SwitchCiscoIOS Command Reference—Release 12.2(18)EW
ip dhcp snooping limit rate
2-129
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