TCP/IP Management Programming Manual

Commands and Responses
HP NonStop TCP/IP Management Programming Manual—529636-001
6-86
STATISTICS Command
ZTCI-MAP-IP-STATS
is the extensible structured token that lists the statistics counters, which have been
maintained for the IP Layer during the sample period. These statistics are returned
only for the PROC object. This token has the token number ZTCI-TNM-IP-STATS
and the DDL definition ZTCI-DDL-IP-STATS.
Each counter is defined in a separate field. The fields in the ZTCI-MAP-IP-STATS
token are:
ZSTATS-IP-TOTAL
is the number of incoming packets received by the IP Layer of the TCP/IP
subsystem during the sample period.
ZSTATS-IP-BAD-XSUM
is the number of packets with an invalid checksum value received by the IP
Layer of the TCP/IP subsystem during the sample period. An invalid checksum
is usually caused by a noisy link.
ZSTATS-IP-TOO-SHORT
is the number of packets, received by the IP Layer of the TCP/IP subsystem
during the sample period, that contained less data than was specified in the
header. This can be caused by noisy links, a protocol error by the sender of the
packet, or a byte-swapping problem on the receiver.
ZSTATS-IP-TOO-SMALL
is the number of packets, received by the IP Layer of the TCP/IP subsystem
during the sample period, that contained less data than expected when read
into the local buffers. This error is rare; it usually indicates a problem with the
local machine’s buffering scheme.
ZSTATS-IP-BAD-HDR-LEN
is the number of packets received by the IP Layer of the TCP/IP subsystem
during the sample period with a header size that is larger than the header
length provided in the packet. This error is rare; it indicates either a problem
with the sender of the packet or a problem in reading the data from the link
controller to the IP Layer.
ZSTATS-IP-BAD-LEN
is the number of packets received by the IP Layer of the TCP/IP subsystem
during the sample period with a packet length that was shorter than expected.
This error is very similar to ZSTATS-IP-BAD-HDR-LEN and is usually caused
by similar conditions.