TCP/IP (Parallel Library) Configuration and Management Manual

SCF Reference for Parallel Library TCP/IP
HP NonStop TCP/IP (Parallel Library) Configuration and Management Manual—522271-006
5-105
STATS PROCESS Command for TCPSAM
Description of Statistics for the IP Layer (in Alphabetical Order)
Bad Checksum
is the number of packets received with invalid checksum values. An invalid
checksum is usually caused by a noisy link.
Bad Packet Size
is the number of packets received with a packet length shorter than expected. This
error is very similar to the Invalid Header Size and is usually caused by similar
conditions.
Fragments Dropped
is the number of packet fragments dropped. A fragment is dropped either when
memory cannot be allocated for the fragment or when the fragment is a duplicate
of a fragment that has already been received.
Fragments Input
is the number of packet fragments received. Usually, a packet is fragmented when
it 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.
Fragments Timed Out
is the number of packet fragments received 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.
ICMP Redirects Sent
is the number of ICMP Redirect messages sent. Redirect messages are sent to the
source host to indicate that there is a shorter path to the destination. The source
host should send the packet directly to the destination host or to another gateway.
Invalid Header Size
is the number of packets received with a header size that is larger than the header
length provided in the packet. This error indicates a problem with the sender of the
packet or a problem in reading the data from the link controller to IP.
Packets Cant Forward
is the number of packets destined for another host that were received but could not
be forwarded. The packets could not be forwarded because either the local host is
not configured as a gateway or no route is available to the specified destination.
Packets Forwarded
is the number of packets destined for another host that were forwarded.