Field Names and Descriptions
Issue 3 May 2002
4-73
Field Name Description
TCP/IP Connection
State
Read-only.
■ REACHABLE — The client is responding to ICMP
echo requests (host recognizes client but cannot
communicate).
■ UNREACHABLE — The client is not responding to
ICMP echo requests (host does not recognize
client).
■ CLOSED — The TCP connection has been closed.
■ LISTEN — TCP is listening for incoming
connections.
■ SYN SENT — TCP is actively trying to establish a
connection.
■ SYN RECEIVED — Initial synchronization of the
TCP connection is under way.
■ ESTABLISHED — The TCP connection has been
established. This is the steady state when the client
is connected.
■ CLOSE WAIT — The client has closed its TCP
connection. The MAPD’s TCP is waiting for a close.
■ FIN WAIT 1 — The MAPD’s TCP connection is
initiating a close.
■ CLOSING — The MAPD’s TCP has notified the
client’s TCP of its intent to close. It is now awaiting
acknowledgment.
■ LAST ACK — The client has closed its TCP
connection. The MAPD has closed its TCP
connection and is now awaiting acknowledgment.
■ FIN WAIT 2 — The MAPD’s TCP connection has
initiated a close and is now awaiting shutdown from
the client’s TCP.
■ TIME WAIT — The MAPD has closed its TCP
connection and is waiting for retransmission of the
shutdown from the client’s TCP.
■ UNKNOWN — Self-explanatory. Contact the TSC.
DLG Service State Either in service or busied out.
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