[Adopted in Release No. 34-20784, March 22, 1984, effective March 30, 1984, 
   49 F.R. 12688.]

                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                     FORM 15

          Certification and Notice of Termination of Registration under
             Section 12(g) of the Securities Exchange Act of 1934 or
        Suspension    of Duty to File Reports Under Sections 13 and 15(d) of the
                      Securities Exchange Act of 1934.

                        Commission File Number: 000-24918

            INTEL NETWORK SYSTEMS, INC. (formerly Shiva Corporation)*
             (Exact name of registrant as specified in its charter)

          28  Crosby  Drive,   Bedford,   Massachusetts  01730,  (781)  687-1000
          (Address, including zip code, and telephone number, including
             area code, of registrant's principal executive offices)

                          COMMON STOCK, $.01 PAR VALUE
          SERIES A JUNIOR PARTICIPATING PREFERRED STOCK PURCHASE RIGHTS
            (Title of each class of securities covered by this Form)

                                      NONE
         (Titles of all other  classes  of  securities  for which a duty to file
               reports under Section 13(a) or 15(d) remains)

          Please place an X in the box(es) to  designate  the  appropriate  rule
        provision(s) relied upon to terminate or suspend the duty to
                                  file reports:

         Rule 12g-4(a)(1)(i)      [X]        Rule 12h-3(b)(1)(ii)     [   ]
         Rule 12g-4(a)(1)(ii)     [   ]      Rule 12h-3(b)(2)(i)      [   ]
         Rule 12g-4(a)(2)(i)      [   ]      Rule 12h-3(b)(2)(ii)     [   ]
         Rule 12g-4(a)(2)(ii)     [   ]      Rule 15d-6               [   ]
         Rule 12h-3(b)(1)(i)      [   ]

Approximate number of holders of record as of the certification or 
notice date: ONE

Pursuant to the  requirements  of the  Securities  Exchange  Act of 1934,  Shiva
Corporation has caused this  certification/notice  to be signed on its behalf by
the undersigned duly authorized person.


                               Date: March 3, 1999
                               By:  /s/ Cary I. Klafter
                                    Cary I. Klafter
                                    President
                                    Intel Network Systems, Inc.

* As of February 27, 1999, a wholly owned subsidiary of Intel Corporation merged
with and into Shiva  Corporation  and Shiva  Corporation  became a wholly  owned
subsidiary  of  Intel  Corporation.   In  connection  with  the  merger,   Shiva
Corporation changed its name to "Intel Shiva Corp.," which subsequently  changed
its name to Intel Network Systems, Inc.