Director Shareholding

Spirent PLC
8 May 2001

          London Stock Exchange

             NOTIFICATION OF INTERESTS OF DIRECTORS AND CONNECTED

                                   PERSONS
AVS No

All relevant boxes should be completed in typed block capital letters.

1     Name of company                             2     Name of director

      SPIRENT plc                                       ERIC GEORGE HUTCHINSON


3     Please state whether notification indicates 4     Name of the registered
      that it is in                                     holder(s) and, if more
                                                        than one holder, the
      respect of holding of the director named in       number of shares held
      2 above or                                        by each of them. (If
                                                        notified)
      holding of that person's spouse or children
      under the age of 18 or in respect of a
      non-beneficial interest
                                                        NOT NOTIFIED
      DIRECTOR NAMED IN 2 ABOVE

5     Please state whether notification relates   6     Please state the nature
      to a person(s) connected with the director        of the transaction. For
      named in 2 above and identify
                                                        PEP transactions please
      The connected person(s)                           indicate whether

      N/A                                               general/single co PEP
                                                        and if discretionary/
                                                        non

                                                        discretionary.



7     Number   8     Percentage 9     Number of   10    Percentage of
      of             of issued        shares/           Issued
      shares/                         amount of
      amount         Class            stock             Class
      of stock                        disposed
      acquired                                                   -
                                           -
      -              -

11    Class of 12    Price per  13    Date of     14    Date company
      security       share            transaction       informed

      -              -                -                 4 May 2001

15    Total holding following this notification   16    Total percentage
                                                        holding of issued class
                                                        following this
                                                        notification


If a director has been granted options by the company please complete the
following boxes.

17    Date of grant                    18    Period during which or date on
                                             which exercisable
      4 May 2001
                                             1 June 2008 - 31 December 2008

19    Total amount paid (if any) for   20    Description of shares or
      grant of the option                    debentures involved: class,

      NONE                                   Number

                                             OPTIONS OVER 2,468 ORDINARY
                                             SHARES OF 3 1/3p EACH

21    Exercise price (if fixed at time 22    Total number of shares or
      of grant) or indication that           debentures over which options

      Price is to be fixed at time of        held following this notification
      exercise
                                             382,125 options, 90,849
      268p                                   performance units under the Long
                                             Term Share Purchase Plan

23    Any additional information       24    Name of contact and telephone
                                             number for queries
      OPTIONS GRANTED UNDER THE
      SAVINGS RELATED SHARE OPTION           Luke Thomas - 01293 767658
      SCHEME

25    Name and signature of authorised
      company official

      Responsible for making this
      notification                           LUKE THOMAS - DEPUTY COMPANY
                                             SECRETARY
      Date of notification 8 May 2001

London Stock Exchange, Company Announcements Office, Old Broad Street, London
EC2N 1HP

Facsimile: 020 7588 6057, 020 7334 8964/8965/8966 (PLEASE DO NOT POST)

Enquiries: Continuing obligations: Telephone: [phone]