COMNET III

Chapter 9. Transport and Answer Commands
9.8 Packet Size Report
TRANSPORT + ANSWER COMMANDS: PKT SIZE
REPLICATION 1 FROM 0.0 TO 300.0 SECONDS
ORIGIN / COMMAND NAME: MAX MAX PACKET SIZE
DESTINATION LIST PKT WINDOW MIN AVG MAX
______________________ _______ _______ _______ _______ _______
Application Workstation / cmd DataDB Request:
Application Server 1460 3 100 100 100
Application Server / cmd Request Response:
ECHO 1460 3 0 0 0
Application Workstat 1460 3 20 1280 1460
The Packet Size Report provides two functions:
• The first function is to report on the maximum packet and window size resulting
from the socket constraints at either end for transport and answer commands. This
is important because the sockets' packet or window size constraint can reduce the
maximum protocol window or packet size.
• The second function is to report on the packet sizes that were actually created for
transport and answer commands. This function is most useful for monitoring the
sizes of messages that are smaller than the packet sizes or for monitoring the sizes
of messages from external traffic sources.
The packet size is set by the transport protocol.
Packet Maximum
Window Maximum
The maximum size of a packet transmitted to the destination.
The maximum window size, in packets, defined by the
transport protocol.
Packet Size—Minimum, Average, Max
The average, minimum and maximum size of a packet that was
transmitted to the destination.
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