On January 8, 2007, Redback Networks Inc. (the “Company”) entered into a Manufacturing Agreement with Jabil Circuit, Inc. (“Jabil”) under which Jabil will manufacture certain of the Company’s products (the “Manufacturing Agreement”). The Manufacturing Agreement, which has a term of one year, provides that production volumes and pricing will be determined by the parties on a quarterly basis.

The above description of the Manufacturing Agreement is qualified in its entirety by reference to the full text of the Manufacturing Agreement, a copy of which is expected to be filed as an exhibit to the Company’s annual report on Form 10-K for the period ended December 31, 2006.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.