X0201 42003-12-0100000350621C COR NET CORP ccbl0001130339ZAVACKY JOSEPH EC/O C-COR.NET CORP.60 DECIBEL ROADSTATE COLLEGEPA168010100Controller & Assist SecretaryCommon Stock2003-12-014M012500.00006.1900A14773.0000DCommon Stock2003-12-014M08000.00007.3750A22773.0000DCommon Stock2003-12-014M03500.00007.5000A26273.0000DCommon Stock2003-12-014S024000.000012.0000D2273.0000DCommon Stock2348.9870IBy TrustOption6.19002003-12-014M012500.00006.1900D2002-06-162006-06-15Common Stock12500.0000100000.0000DOption7.37502003-12-014M08000.00007.3750D2003-04-182009-04-17Common Stock8000.000092000.0000DOption7.50002003-12-014M03500.00007.5000D2003-06-182010-06-17Common Stock3500.000088500.0000DPhantom StockCommon Stock986.9080986.9080IBy TrustAcquired, pursuant to a 10b5-1 Sales Plan,through exercise of options acquired under C-COR.net Corp.'s Incentive Plan. Sold pursuant to a 10b5-1 Sales Plan.Shares acquired on various dates and at various prices through C-COR.net Corp.'s qualified (401K) retirement plan.Options (right to buy) acquired through C-COR.net Corp.'s Incentive Plan. Phantom Stock Unit acquired through C-COR.net Corp.'s non-qualified retirement savings and profit sharing plan.Various, established on the date of each individual transaction under the retirement plan.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.Joseph E. Zavacky2003-12-02