Tcp/Ip Link Failure - NEC Univerge SV8500 Programming Manual

4.2.1

TCP/IP Link Failure

For details of System Message "4-R" and "26-V," see Section 3.2.1 and 3.2.3 in this Chapter.
START
According to each fault situation, perform the repairing procedure referring to the table below.
(1) When Message "4-R" is displayed:
ERRK
TCP/IP connection is down for the TCP connection
01
disconnection from Host.
Incorrect text format is received.
02
TCP/IP connection establishment is not completed for
0A
the TCP connection disconnection ordered from Host.
TCP/IP connection establishment is not completed for
the TCP connection disconnection ordered from Host.
0B
According to Heart Beat function of Host, abnormal
0C
status of the Host system operation is detected.
0D Not used
TCP port is released due to the detection of abnormal
0E state in the TCP/IP port (such as B-level Infinite Loop,
etc.).
0F-FF Not used
A
Table 8-3 Repairing Procedure for TCP/IP Link Failure (Message "4-R")
Detail information of ERRK
CHAPTER 8
– 379 –
SYSTEM MAINTENANCE
Check Item
Re-start the Host.
[1] Check the software operation
on the Host side.
[2] Check the LAN cable
connection.
Re-start the Host.
[1] Check the TCP/IP
transmission capacity on the
UAP side is proper or not.
[2] Check the system operation on
the UAP side.
Check system operation of the
Host.
Re-check the operation status of
Host.