Cisco 4500M Command Reference

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Catalyst4500 Series SwitchCiscoIOS Command Reference—Release 12.2(18)EW
78-16201-01
Chapter2Cisco IOS Commands for the Catalyst 4500 Series Switches
ip dhcp snooping limit rate
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.
ip dhcp snooping limit rate rate
no ip dhcp snooping limit rate
Syntax Description
Defaults DHCP snooping rate limiting is disabled.
Command Modes Interface configuration
Command History
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
rate Number of DHCP messages a switch can receive per second.
Release Modification
12.1(12c)EW Support for this command was introduced on the Catalyst 4500 series switch.

Cisco 4500M Specifications

General

Brand	Cisco
Model	4500M
Category	Network Router
Language	English