EXHIBIT 3.4




                                    AMENDMENT

                                     TO THE

                          CERTIFICATE OF INCORPORATION

                                       OF

                               NETRIX CORPORATION

                                   PURSUANT TO

                 Section 242 OF THE DELAWARE GENERAL CORPORATION LAW

                                   ----------

                  The undersigned,  Jay R. Schifferli,  being the Vice President
and Secretary of Netrix Corporation (the "Corporation"), hereby certifies that:

                  1.    The name of the Corporation is Netrix Corporation.

                  2.    The Certificate  of  Incorporation  of  the  Corporation
was filed with the Secretary of State of the State of Delaware on March 9, 1987.

                  3.    Article   First   of  the  Corporation's  Certificate of
Incorporation shall be deleted and the following substituted therefor:

                        "FIRST:  The name of  the  Corporation  is Nx  Networks,
        Inc. (the "Corporation")."

                  4.    This  Certificate  shall become effective at 12:01 a. m.
on September 19, 2000.

                  5.    This  Amendment  to  the Certificate of Incorporation of
the  Corporation  was duly  authorized  in  accordance  with  Section 242 of the
Delaware General  Corporation Code by the unanimous written consent of the Board
of Directors of the Corporation and the consent of a majority of the outstanding
shares  of the  Corporation  entitled  to vote on the  proposal  to  adopt  this
Amendment at a duly noticed and conducted annual meeting of stockholders held on
June 23, 2000.

                  IN  WITNESS  WHEREOF,  the  undersigned  has  subscribed  this
document on the 13th day of September,  2000, and does hereby affirm,  under the
penalty of perjury, that the statements contained herein are true and correct.




                                                     /S/ Jay R. Schifferli
                                                     ------------------------
                                                         Jay R. Schifferli
                                                   Vice President and Secretary