Procera Networks (PKT) 8-K Changes in Registrant.s Certifying Accountant

Exhibit 16.1

June 13, 2006

United States Securities and Exchange Commission

Division of Corporate Finance

450 Fifth Street, N.W.

Washington, D.C. 20549

To Whom it May Concern:

We have read Item 4.01 of Form 8-K dated June 13, 2006, of Procera Networks, Inc. and are in agreement with the statements contained therein.  

Very Truly Yours,

/s/ Burr, Pilger & Mayer LLP

Burr, Pilger & Mayer LLP