Cisco Catalyst 3750-X Command Reference Manual page 709

Cisco ios release 15.2(1)e and later

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Table of Contents

Chapter 2 Catalyst 3750-X and 3560-X Switch Cisco IOS Commands

DHCP Snooping Statistic

Interface Down

Unknown output interface

Reply output port equal to input port

Packet denied by platform

Related Commands

clear ip dhcp snooping

DHCP Snooping Statistics (continued)

Clears the DHCP snooping binding database, the DHCP

snooping binding database agent statistics, or the DHCP

snooping statistics counters.

Number of times the packet is a reply to the DHCP relay

agent, but the SVI interface for the relay agent is down.

This is an unlikely error that occurs if the SVI goes down

between sending the client request to the DHCP server and

receiving the response.

Number of times the output interface for a DHCP reply

packet cannot be determined by either option-82 data or a

lookup in the MAC address table. The packet is dropped.

This can happen if option 82 is not used and the client

MAC address has aged out. If IPSG is enabled with the

port-security option and option 82 is not enabled, the MAC

address of the client is not learned, and the reply packets

will be dropped.

Number of times the output port for a DHCP reply packet

is the same as the input port, causing a possible loop.

Indicates a possible network misconfiguration or misuse of

trust settings on ports.

Number of times the packet has been denied by a

platform-specific registry.

Catalyst 3750-X and 3560-X Switch Command Reference

show ip dhcp snooping statistics

Catalyst 3560-x