TCP/IP Management Programming Manual

Commands and Responses
HP NonStop TCP/IP Management Programming Manual—529636-001
6-87
STATISTICS Command
ZSTATS-IP-FRAG
is the number of packet fragments received by the IP Layer of the TCP/IP
subsystem during the sample period. Usually, a packet is fragmented when the
size of the packet is too large for a particular gateway or network. This statistic
might indicate that the sender’s maximum segment size is too large for the
connection.
ZSTATS-IP-FRAG-DROP
is the number of packet fragments dropped by the IP Layer of the TCP/IP
subsystem during the sample period. A fragment is dropped when memory
cannot be allocated for the fragment or the fragment is a duplicate of a
fragment already received.
ZSTATS-IP-FRAG-TIMEOUT
is the number of packet fragments, received by the IP Layer of the TCP/IP
subsystem during the sample period, that timed out before the whole packet
was received. This is usually caused by congestion, noisy links, or some event
that prevents one of the fragments from being received with the rest of the
fragments.
ZSTATS-IP-FWD
is the number of packets destined for another host that have been forwarded
by the IP Layer of the TCP/IP subsystem during the sample period.
ZSTATS-IP-CANT-FWD
is the number of packets destined for another host that were received but not
forwarded by the IP Layer of the TCP/IP subsystem during the sample period.
The packets could not be forwarded because either the local host is not
configured as a gateway or there is no route available to the specified
destination.
ZSTATS-IP-REDIR-SENT
is the number of ICMP Redirect messages sent by the IP Layer of the TCP/IP
subsystem during the sample period. Redirect messages are sent to the
source host to indicate that there is a shorter path to the destination. The
source host should either send the packet directly to the destination host or
send the packet to another gateway.
ZSTATS-IP-OUT-PKTS
is the number of outgoing packets sent by the IP Layer of the TCP/IP
subsystem during the sample period.