1 EXHIBIT 4.3 AMENDMENT NO. 1 TO INVESTORS' RIGHTS AGREEMENT This AMENDMENT NO. 1 TO THE INVESTORS' RIGHTS AGREEMENT (this "Amendment No. 1") is being entered into as of May 23, 2000 between McDATA Corporation, a Delaware corporation (the "Company"),...Investors' Rights Agreement • June 13th, 2000 • McData Corp • Communications equipment, nec
1 EXHIBIT 10.7 AMENDED AND RESTATED TAX SHARING AGREEMENTSharing Agreement • June 13th, 2000 • McData Corp • Communications equipment, nec • Delaware
40-00-109-00 OEM AGREEMENT NUMBEROem Purchase and License Agreement • June 13th, 2000 • McData Corp • Communications equipment, nec • Massachusetts
EXHIBIT 10.21 FORM OF STOCK OPTION AGREEMENT Pursuant to the Grant Notice and this Stock Option Agreement, the Company has granted you an option to purchase the number of shares of the Company's Class B Common Stock ("CLASS B COMMON STOCK") indicated...Stock Option Agreement • June 13th, 2000 • McData Corp • Communications equipment, nec
BETWEENDisclosure and License Agreement • June 13th, 2000 • McData Corp • Communications equipment, nec • New York
