Exhibit 99.1

JOINT FILING AGREEMENT

In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13D originally filed on July 21, 2011 (including amendments thereto) with respect to the shares of Common Stock, par value $0.0017 per share, of MRV Communications, Inc.  This Joint Filing Agreement shall be filed as an Exhibit to such Statement.

Dated:  July 21, 2011

Raging Capital Fund, LP
By:	Raging Capital Management, LLC General Partner
By:	/s/ William C. Martin
	Name:	William C. Martin
	Title:	Managing Member

Raging Capital Fund (QP), LP
By:	Raging Capital Management, LLC General Partner
By:	/s/ William C. Martin
	Name:	William C. Martin
	Title:	Managing Member

Raging Capital Management, LLC
By:	/s/ William C. Martin
	Name:	William C. Martin
	Title:	Managing Member

/s/ William C. Martin

William C. Martin