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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