ct_send(): network packet layer: internal net library error: Net-Lib protocol driver call to write data failed

The below message log is a series of events happened in a
Sybase client. More detail is given below. Please provide
your suggestions if you have encountered this before

The OS is Red Hat Enterprise Linux AS release 3 (Taroon
Update 5) and Sybase 12.5.1. we also applied latest patches
from sybase


09262005 212550 ErrorMsg: (TID3155296384) <Calling
eaDatabase client callback function eaSybCtCb>
09262005 212550 ErrorMsg: (TID3155296384) <Client callback
is called.  Error number is <84083975> Message is
<ct_send(): network packet layer: internal net library
error: Net-Lib protocol driver call to write data failed>.
Severity is <5>. Osstring is <>>
09262005 212550 ErrorMsg: (TID3155296384) <ct_send failed
for statement select 1>
09262005 212550 ErrorMsg: (TID3155296384) <executeStmt()
threw an eaException: > :Extra Args:
<eaException(../code/eaDBSybStatementImp.cpp:634) ct_send():
network packet layer: internal net library error: Net-Lib
protocol driver call to write data failed errno=0 addl error
cd=7 error cd2=0 MsgId=WHATEVER>
09262005 212550 ErrorMsg: (TID3155296384) <Calling
eaDatabase client callback function eaSybCtCb>
09262005 212550 ErrorMsg: (TID3155296384) <Client callback
is called.  Error number is <84083973> Message is
<ct_cancel(): network packet layer: internal net library
error: Net-Lib protocol driver call to write data failed>.
Severity is <5>. Osstring is <>>
09262005 212550 ErrorMsg: (TID3155296384) <Calling
eaDatabase client callback function eaSybCtCb>
09262005 212550 ErrorMsg: (TID3155296384) <Client callback
is called.  Error number is <16843058> Message is
<ct_cmd_drop(): user api layer: external error: The
connection has been marked dead.>. Severity is <1>. Osstring
is <>>
09262005 212550 ErrorMsg: (TID3155296384) <Caught
eaException: > :Extra Args:
<eaException(../code/eaDBSybConnectionImp.cpp:663)
eaDBSybDynamicSQLStmtImp::execute() failed during ping to
database errno=0 addl error cd=7 error cd2=0
MsgId=WHATEVER><while checking DB connection. The connection
DEAD.>
09262005 212550 ErrorMsg: (TID3155296384) <Primary
connection # > :Extra Args: <0>< for database type
><Sybase>< is not connected. >
09262005 212550 ErrorMsg: (TID3155296384) <Setting old msg
syb conn ptr to zero before refresh>
09262005 212550 ErrorMsg: (TID3155296384) <Connection # >
:Extra Args: <0>< for database type ><Sybase>< is not
connected. It will be refreshed.> ErrorId: 51950
0
raees
9/29/2005 4:06:37 PM
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