User`s manual

DT-6061 User's Manual - Platform (Build 16.0)
11/12/04 Datatek Applications Inc. 30
LISTEN Listening for incoming connections.
SYN_RECEIVED Initial synchronization of the connection underway.
SYN_SENT Actively trying to establish connection.
TIME_WAIT Wait after close for remote shutdown retransmission.
A variation of the dc command:
dc app [ -f ] [ -a ]
reports only connections that are associated with instances, and shows the instance ownership of
each connection. The list is sorted by local port number. The optional -f flag sorts the list by
foreign IP address and port number. The following is a dc app report example:
< DT-6061> dc app
Active Internet Connections by Applications (sorted by local address):
Type Inst FD Local Addr Foreign Addr
b2aprt 10 .5 192.168.8.250.1340 192.168.8.15.31000
tn3270 2 .5 192.168.8.250.10002 135.17.59.198.34052
b2aprt 10 .4 192.168.8.250.10010 135.17.59.198.34054
Note that in the above report, “FD” (file descriptor) is only for use during software development or
troubleshooting.
The connections may also be viewed from an SNMP manager.
6.24 DISPLAY MEASUREMENTS
Syntax: dm [ -d ] ip | tcp | udp | icmp | con
The DT-6061 platform maintains measurements of network activity as an aggregate of all the
application instances. The measurements are grouped into five categories. The measurements
for any one of the categories may be reported by the dm command, giving one of the categories
as a parameter. The categories IP, TCP, UDP, and ICMP report measurements for that protocol.
The CON report shows the current number of connections. The optional -d reports the differences
between the current measurements and the previous results from dm. There is no way to clear
the measurements.
These measurements may also be viewed from an SNMP manager. Appendix D, section 14
shows sample reports along with information about the individual measurements for the four
protocol categories.