Cisco Catalyst 3750 Metro, Command Reference Manual

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Catalyst 3750 Metro Switch Command Reference
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Chapter 2 Catalyst 3750 Metro Switch Cisco IOS Commands
show ip dhcp snooping statistics
Related Commands
Interface Down 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.
Unknown output interface 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.
Reply output port equal to input port 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.
Packet denied by platform Number of times the packet has been denied by a
platform-specific registry.
Table 2-23 DHCP Snooping Statistics (continued)
DHCP Snooping Statistic Description
Command Description
clear ip dhcp snooping Clears the DHCP snooping binding database, the DHCP
snooping binding database agent statistics, or the DHCP
snooping statistics counters.