User`s manual

DT-6061 User's Manual - Platform (Build 16.0)
11/12/04 Datatek Applications Inc. 29
an "unreg" status. For some applications, there may occasionally appear a short temporary status
report generated by some instances of the application.
6.22.3 VERIFY MODULE
Syntax: vfy mod
The vfy mod (or vfymod) command shows the DT-6061 module parameters and properties:
Registration status, system label, IP address, subnet mask, gateway IP address, the redundancy
status and configuration, if any, host name,
MAC address, serial number, the manufactured "right
to use" value, the platform software revision number and date, and the elapsed time since the
system was booted. If platform installation is incomplete, an additional line of information shows
the next action required. If the platform software is not registered, an additional line says so. If
pending system reconfiguration requires a reboot, an additional line says so.
6.23 DISPLAY CONNECTIONS
Syntax: dc [ -a ]
dc app [ -f ] [ -a ]
The DT-6061 may have thousands of TCP connections to other elements. A complete list of
these connections is reported by the dc (or dconn) command. The optional -a causes the report
to include the listening ports awaiting connection requests. The following is a dc report example:
< DT-6061> dc
Active Internet connections
Proto Recv-Q Send-Q Local Address Foreign Address (state)
tcp 0 0 192.168.8.250.10002 135.17.59.198.34052 ESTABLISHED
tcp 0 0 192.168.8.250.10010 135.17.59.198.34054 ESTABLISHED
tcp 0 0 192.168.8.250.1340 192.168.8.15.31000 SYN_SENT
udp 0 0 192.168.8.20.1030 *.*
udp 0 0 192.168.8.20.9998 *.*
In the above report, “Recv-Q” and “Send-Q” indicate the number of bytes currently buffered for
receive processing, or queued for transmission, respectively. Note that no foreign address is
shown in the case of UDP protocol, because UDP is a connectionless protocol. The following are
the possible TCP connection states:
BOUND Bound to a local address, ready to connect or listen.
CLOSED Closed. The socket is not being used.
CLOSING Closed, then remote shutdown; awaiting acknowledgment.
CLOSE_WAIT Remote shutdown; waiting for the socket to close.
ESTABLISHED Connection has been established.
FIN_WAIT_1 Socket closed; shutting down connection.
FIN_WAIT_2 Socket closed; waiting for shutdown from remote.
IDLE Idle, opened but not bound.
LAST_ACK Remote shutdown, then closed; awaiting acknowledgment.