display ntp-service statistics packet

Function

The display ntp-service statistics packet command displays statistics on NTP packets.

Format

display ntp-service statistics packet [ ipv6 | peer [ ip-address [ vpn-instance vpn-instance-name ] | ipv6 [ ipv6-address [ vpn-instance vpn-instance-name ] ] ] ]

Parameters

Parameter	Description	Value
ipv6	Displays statistics about global IPv6 NTP packets.	-
peer	Displays statistics on an NTP symmetric peer.	-
ip-address	Specifies the IP address of an NTP symmetric peer.	-
vpn-instance vpn-instance-name	Specifies a VPN instance related to an NTP symmetric peer.	The value must be an existing VPN instance name.
ipv6	Displays the packet statistics on IPv6 peers.	-
ipv6-address	Displays the NTP packet statistics on the specified IPv6 peer.	-

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

The display ntp-service statistics packet command output includes the following information, and can help you to debug NTP packets.

Number of packets sent and received by an interface
Number of packets failing authentication
Number of dropped packets
Reason for dropping an NTP packet last time

Example

# Display the statistics on NTP packets.

<HUAWEI> display ntp-service statistics packet
 NTP IPv4 Packet Statistical Information     
 ---------------------------------------     
 Sent                                  : 100   
    Send failures                      : 10   
 Received                              : 1000   
    Processed                          : 800   
    Dropped                            : 200   
       Validity test failures          : 50   
          Authentication failures      : 20   
       Invalid packets                 : 50   
       Access denied                   : 50   
       Rate-limited                    : 0   
       Processing delay                : 50   
       Interface disabled              : 0   
       Max dynamic association reached : 0   
       Server disabled                 : 0   
       Others                          : 0   
Last 2 packets drop reasons:
  [2011-11-24 12:19:26-08:00] Global drop: NTP service disabled for interface.
  [2011-11-24 12:20:30-08:00] Global drop: NTP service disabled for interface.

**Table 1** Description of the **display ntp-service statistics packet** command output
Item	Description
NTP IPv4 Packet Statistical Information	Statistics on IPv4 NTP packets.
Sent	Number of packets sent.
Send failures	Number of failures in sending packets.
Received	Number of received packets.
Processed	Number of processed packets.
Dropped	Number of dropped packets.
Validity test failures	Number of packets dropped because the packets fail to pass the validity test.
Authentication failures	Number of packets dropped because the packets fail to pass the authentication.
Invalid packets	Number of packets dropped because the packets are invalid.
Access denied	Number of packets dropped for lack of access control authority.
Rate-limited	Number of packets dropped due to rate limit.
Processing delay	Number of packets dropped because processing of the packets is delayed.
Interface disabled	Number of packets dropped because the interface is disabled.
Max dynamic association reached	Number of packets dropped because the maximum number of dynamic sessions is reached.
Server disabled	Indicates the number of packets dropped as server disabled.
Others	Number of packets dropped for other reasons.
Last 2 packets drop reasons	Reason for dropping the last n packets, where the maximum value of n can be 10.