Common Contracts

FIRST SUPPLEMENTAL INDENTURE

Supplemental Indenture • June 2nd, 2005 • McData Corp • Communications equipment, nec • New York

• Contract Type
  Supplemental Indenture
• Filed
  June 2nd, 2005
• Company
  McData Corp
• Industry
  Communications equipment, nec
• Jurisdiction
  New York

THIS FIRST SUPPLEMENTAL INDENTURE dated as of June 1, 2005 (this "Supplemental Indenture"), is entered into by and among McDATA Corporation, a Delaware corporation ("McDATA"), Computer Network Technology Corporation, a Minnesota corporation (the "Company"), and U.S. Bank National Association, a national banking association, as trustee (the "Trustee"). Capitalized terms used herein and not otherwise defined have the meanings set forth in the Indenture referred to below.

FIRST SUPPLEMENTAL INDENTURE

Supplemental Indenture • April 18th, 2005 • McData Corp • Communications equipment, nec • New York

• Contract Type
  Supplemental Indenture
• Filed
  April 18th, 2005
• Company
  McData Corp
• Industry
  Communications equipment, nec
• Jurisdiction
  New York

THIS FIRST SUPPLEMENTAL INDENTURE dated as of [ ], 2005 (this "Supplemental Indenture"), is entered into by and among McDATA Corporation, a Delaware corporation ("McDATA"), Computer Network Technology Corporation, a Minnesota corporation (the "Company"), and U.S. Bank National Association, a national banking association, as trustee (the "Trustee"). Capitalized terms used herein and not otherwise defined have the meanings set forth in the Indenture referred to below.