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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 KysG0BKzn6Ssy5n4EyJi+8VON1TcTMNLPHT3dvkwZm3JENvMA0V/nA84S9bq2zPM
 FUGyAxo+gYvf4In1VLDGiA==

<SEC-DOCUMENT>0001209191-03-025696.txt : 20031015
<SEC-HEADER>0001209191-03-025696.hdr.sgml : 20031013
<ACCEPTANCE-DATETIME>20031015152354
ACCESSION NUMBER:		0001209191-03-025696
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20031014
FILED AS OF DATE:		20031015

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			C COR NET CORP
		CENTRAL INDEX KEY:			0000350621
		STANDARD INDUSTRIAL CLASSIFICATION:	RADIO & TV BROADCASTING & COMMUNICATIONS EQUIPMENT [3663]
		IRS NUMBER:				240811591
		STATE OF INCORPORATION:			PA
		FISCAL YEAR END:			0630

	BUSINESS ADDRESS:	
		STREET 1:		60 DECIBEL RD
		CITY:			STATE COLLEGE
		STATE:			PA
		ZIP:			16801
		BUSINESS PHONE:		8142382461

	MAIL ADDRESS:	
		STREET 1:		60 DECIBEL ROAD
		CITY:			STATE COLLEGE
		STATE:			PA
		ZIP:			16801

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	C COR ELECTRONICS INC
		DATE OF NAME CHANGE:	19920703

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			TIETJEN JAMES J
		CENTRAL INDEX KEY:			0001133898

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-10726
		FILM NUMBER:		03941796

	BUSINESS ADDRESS:	
		STREET 1:		STEVENS INST OF TECH
		STREET 2:		CASTLE POINT ON THE HUDSON
		CITY:			HOBOKEN
		STATE:			NJ
		ZIP:			08502
		BUSINESS PHONE:		2012168386

	MAIL ADDRESS:	
		STREET 1:		STEVENS INST OF TECH
		STREET 2:		CASTLE POINT ON THE HUDSON
		CITY:			HOBOKEN
		STATE:			NJ
		ZIP:			08502
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?><ownershipDocument><schemaVersion>X0201</schemaVersion>    <documentType>4</documentType><periodOfReport>2003-10-14</periodOfReport><notSubjectToSection16>0</notSubjectToSection16><issuer><issuerCik>0000350621</issuerCik><issuerName>C COR NET CORP</issuerName>        <issuerTradingSymbol>ccbl</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001133898</rptOwnerCik><rptOwnerName>TIETJEN JAMES J</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1>3 DEHART DRIVE</rptOwnerStreet1><rptOwnerStreet2></rptOwnerStreet2><rptOwnerCity>BELLE MEADE</rptOwnerCity><rptOwnerState>NJ</rptOwnerState><rptOwnerZipCode>08502</rptOwnerZipCode><rptOwnerStateDescription></rptOwnerStateDescription></reportingOwnerAddress><reportingOwnerRelationship><isDirector>1</isDirector><isOfficer>0</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther></reportingOwnerRelationship></reportingOwner><derivativeTable><derivativeTransaction><securityTitle><value>O
ption</value><footnoteId id="F1" /></securityTitle><conversionOrExercisePrice><value>7.78</value></conversionOrExercisePrice><transactionDate><value>2003-10-14</value></transactionDate><deemedExecutionDate></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>M</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>7500</value></transactionShares><transactionPricePerShare><value>7.78</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>2004-10-14</value></exerciseDate><expirationDate><value>2011-10-14</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>7500</value></underlyingSecurityShares></underlyingSecurity><postTransactio
nAmounts><sharesOwnedFollowingTransaction><value>67000</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeTransaction></derivativeTable><footnotes><footnote id="F1">Options (right to buy) acquired through C-COR.net Corp.'s Incentive Plan.  </footnote></footnotes><remarks></remarks><ownerSignature><signatureName>James E. Tietjen</signatureName><signatureDate>2003-10-15</signatureDate></ownerSignature></ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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