display dhcp statistics

Function

The display dhcp statistics command displays DHCP message statistics.

Format

display dhcp statistics

Parameters

None

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

The display dhcp statistics command displays statistics about sent and received DHCP messages.

Example

# Display DHCP message statistics.

<HUAWEI> display dhcp statistics
Input: total 172 packets, discarded 0 packets                                   
  Bootp request           :          0,  Bootp reply             :          0   
  Discover                :          0,  Offer                   :        172   
  Request                 :          0,  Ack                     :          0   
  Release                 :          0,  Nak                     :          0   
  Decline                 :          0,  Inform                  :          0   
                                                                                
  Rx buffers full         :       2978,  L2fdb lookup failed     :         38 
                                                                                
Output: total 172 packets, discarded 0 packets

**Table 1** Description of the **display dhcp statistics** command output
Item	Description
Bootp request	Number of BOOTP requests sent by the device that functions as the client.
Bootp reply	Number of BOOTP replies received by the client from the server.
Discover	Number of Discover messages received by the server from the client.
Offer	Number of Offer messages received by the client from the server.
Request	Number of BOOTP requests received by the server from the client.
Ack	Number of ACK messages received by the client from the server.
Release	Number of Release messages received by the server from the client.
Nak	Number of NAK messages received by the client from the server.
Decline	Number of Decline messages sent by the client.
Inform	Number of Inform messages sent by the client.
Rx buffers full or L2fdb lookup failed	Information displayed when the DHCP service is abnormal. The displayed information includes: Rx buffers full: Total number of DHCP packets discarded because the remaining queue length is shorter than the reserved threshold. L2fdb lookup failed: Total number of DHCP packets discarded because entries fail to be queried. High cpu occupancy: Total number of DHCP packets discarded because the CPU usage is excessively high. Port blocked: Total number of DHCP packets discarded because the inbound interface is blocked. Bad vlan id: Total number of DHCP packets discarded because the VLAN ID is incorrect. Memory exhausted: Total number of DHCP packets discarded because the memory is exhausted. L3if protocol down: Total number of DHCP packets discarded because the Layer 3 protocol of the source interface goes Down. Rate limit: Total number of DHCP packets discarded because rates of the packets exceed the limit. Bad packet length: Total number of DHCP packets discarded because the packet length is incorrect. Bad ip header length: Total number of DHCP packets discarded because the IP header length is incorrect. Bad ip header checksum: Total number of DHCP packets discarded because the checksum of the IP header is incorrect. Bad udp checksum: Total number of DHCP packets discarded because the checksum of the UDP header is incorrect. Hops exceeded: Total number of DHCP packets discarded because the number of next hops is incorrect. Bad magic cookie: Total number of DHCP packets discarded because the magic-cookie field is incorrect. Duplicate option: Total number of DHCP packets discarded because the option fields are duplicate. Bad option length: Total number of DHCP packets discarded because the option field length is incorrect. End option absent: Total number of DHCP packets discarded because of the incorrect end option. Dest-port equals source: Total number of DHCP packets discarded because the source interface is also the outbound interface. Bad chaddr: Total number of DHCP packets discarded because the MAC address of the client is incorrect. Bad giaddr: Total number of DHCP packets discarded because the relay gateway is incorrect. Bad request: Total number of DHCP packets discarded because the request packets are incorrect. Bad reply: Total number of DHCP packets discarded because the response packets are incorrect. Bad dest udp-port: Total number of DHCP packets discarded because the destination interface is incorrect. Bad message type: Total number of DHCP packets discarded because of incorrect destination interfaces. L2fdb lookup failed: Total number of incoming DHCP packets discarded because entries fail to be queried. Max-user limit: Total number of DHCP packets discarded because the maximum number of users is exceeded. Add bindtable failed: Total number of DHCP packets discarded because dynamic binding entries are added. Client transfered: Total number of DHCP packets discarded due to interface flapping. Bad original interface: Total number of DHCP packets discarded because dynamic binding entries are added. Bad client-id: Total number of DHCP packets discarded because the client ID is incorrect. Bad server-id: Total number of DHCP packets discarded because the server ID is incorrect. Bad dest-ip: Total number of DHCP packets discarded because the destination IP address is incorrect. Other error: Total number of DHCP packets discarded due to other reasons.