TCP/IP Management Programming Manual

Commands and Responses
HP NonStop TCP/IP Management Programming Manual—529636-001
6-91
STATISTICS Command
This field is reserved for future use.
ZSTATS-ICMP-BADCODE
is the number of packets received by the ICMP Layer of the TCP/IP subsystem
during the sample period that contain an invalid ICMP packet type code in the
header. For a description of the packet type codes currently implemented, see
the description of the ZSTATS-ICMP-IN-HIST field.
ZSTATS-ICMP-TOO-SHORT
is the number of packets, received by the ICMP Layer of the TCP/IP
subsystem during the sample period, that were shorter than the minimum
length allowed for an ICMP packet. Short packets are usually caused by a
noisy link.
ZSTATS-ICMP-BAD-XSUM
is the number of packets with an invalid checksum received by the ICMP Layer
of the TCP/IP subsystem during the sample period. An invalid checksum is
usually caused by a noisy link.
ZSTATS-ICMP-BAD-LEN
is the number of packets received by the ICMP Layer of the TCP/IP subsystem
during the sample period with a length that is shorter than the length field
The TCP/IP subsystem (functioning as a host or gateway) sends
this message in reply to a Timestamp message. This message
indicates the time in the original Timestamp message and the time
at which the message was received by the destination. The
Timestamp facility is used to obtain the network time. Special
applications can be written to use this facility.
Type 15 is the Information Request message.
The TCP/IP subsystem (functioning as a host or gateway) can
send this message with the network portion of the source address
and destination address set to zero, to determine the number of
the network on which it is running. Any host on the local network
can respond to this request with an Information Reply message.
Type 16 is the Information Reply message.
The TCP/IP subsystem (functioning as a host or gateway) sends
this message with the source and destination addresses fully
specified in reply to an Information Request message. This
message is returned by the IP module of the TCP/IP subsystem.
Note that the Information Request/Reply facility, although
supported, is rarely used.