Notice of Results

Spirent PLC
3 August 2001

                                                               3 August, 2001


                                 Spirent plc
                      Notification of Interim Results


Spirent plc, the international network technology company, will announce its
interim results for the half year ended 30 June 2001, on Wednesday 5
September, 2001.

A recording of the results presentation will be available for viewing on the
Spirent plc website (www.spirent.com/investors) from 15.00 London time (10.00
EST) until 12 September.

Nicholas Brookes and Eric Hutchinson will host a results conference call at
16.00 London time (11.00 EST) on the day.  This may be accessed by dialling
[phone] and quoting 'Spirent'. A recording of the call will be
available until 12 September by dialling [phone], access code
620982.

                             

Background note:

Spirent plc is an international network technology company providing state-of-
the-art solutions with a focus on high growth, high margin activities. Our
Communications group unites leading edge performance analysis technology with
network operations expertise, enabling customers to accelerate the
development, deployment and assurance of next generation network equipment and
services worldwide.  Further information about Spirent plc can be found at
www.spirent.com

Spirent plc is listed on the London Stock Exchange (ticker: SPT) and on the
New York Stock Exchange (ticker: SPM; CUSIP number: 84856M209).

Spirent and the Spirent logo are trademarks of Spirent plc. All rights
reserved.