SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* ZAVACKY JOSEPH E (Last) (First) (Middle) C/O C-COR.NET CORP. 60 DECIBEL ROAD (Street) STATE COLLEGE PA 16801 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol C COR NET CORP [ ccbl ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner X Officer (give title below) Other (specify below) Controller & Assist Secretary
	3. Date of Earliest Transaction (Month/Day/Year) 12/01/2003
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	12/01/2003		M(1)		12,500	A	$6.19	14,773	D
Common Stock	12/01/2003		M(1)		8,000	A	$7.375	22,773	D
Common Stock	12/01/2003		M(1)		3,500	A	$7.5	26,273	D
Common Stock	12/01/2003		S(2)		24,000	D	$12	2,273	D
Common Stock								2,348.987	I(3)	By Trust

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Option(4)	$6.19	12/01/2003		M			12,500	06/16/2002	06/15/2006	Common Stock	12,500	$6.19	100,000	D
Option(4)	$7.375	12/01/2003		M			8,000	04/18/2003	04/17/2009	Common Stock	8,000	$7.375	92,000	D
Option(4)	$7.5	12/01/2003		M			3,500	06/18/2003	06/17/2010	Common Stock	3,500	$7.5	88,500	D
Phantom Stock(5)	(6)							(7)	(7)	Common Stock	986.908		986.908	I	By Trust

Explanation of Responses:

1. Acquired, pursuant to a 10b5-1 Sales Plan,through exercise of options acquired under C-COR.net Corp.'s Incentive Plan.

2. Sold pursuant to a 10b5-1 Sales Plan.

3. Shares acquired on various dates and at various prices through C-COR.net Corp.'s qualified (401K) retirement plan.

4. Options (right to buy) acquired through C-COR.net Corp.'s Incentive Plan.

5. Phantom Stock Unit acquired through C-COR.net Corp.'s non-qualified retirement savings and profit sharing plan.

6. Various, established on the date of each individual transaction under the retirement plan.

7. Date not yet known. These derivatives are exercisable upon the participant's retirement and may be taken in the form of stock or in cash.

Remarks:

	Joseph E. Zavacky	12/02/2003
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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