EXHIBIT 11.1
                                                                                
                         NEWBRIDGE NETWORKS CORPORATION

                       COMPUTATION OF EARNINGS PER SHARE

              (Accounting principles generally accepted in Canada)
         (Canadian dollars, amounts in thousands except per share data)
                                  (Unaudited)


 
 
                                                            Fiscal quarters ended      Three fiscal quarters ended
                                                            ---------------------      ---------------------------
                                                              Jan 31,     Feb 1,          Jan 31,        Feb 1,
                                                               1999        1998            1999           1998
                                                             --------   ----------       ---------     ----------
                                                                                           
BASIC EARNINGS (LOSS) PER SHARE                                                                  
                                                                                                 
 Net earnings (loss)                                         $120,119   $(144,283)        $208,953      $(21,936)
                                                             ========   =========         ========      ========
                                                                                                 
 Common Shares outstanding                                                                       
  at the beginning of the period                              176,877     175,305          175,686       171,859
                                                                                                 
 Weighted average number of Common Shares                                                        
   issued during the period                                       719          71            1,128         2,479
                                                             --------   ---------         --------      --------
                                                                                                 
 Weighted average number of Common Shares                                                        
   outstanding during the period                              177,596     175,376          176,814       174,338
                                                             ========   =========         ========      ========
                                                                                                 
 Basic earnings (loss) per share                             $   0.68   $   (0.82)        $   1.18      $  (0.13)
                                                             ========   =========         ========      ========
                                                                                                 
FULLY DILUTED (LOSS) EARNINGS PER SHARE                                                          
                                                                                                 
 Earnings (loss) before imputed earnings                     $120,119   $(144,283)        $208,953      $(21,936)
                                                                                                 
 After tax imputed earnings from the investment                                                  
   of funds received through dilution                           7,353          --           21,006            --
                                                             --------   ---------         --------      --------
                                                                                                 
 Adjusted net earnings (loss)                                $127,472   $(144,283)        $229,959      $(21,936)
                                                             ========   =========         ========      ========
                                                                                                 
 Weighted average number of Common Shares                                                        
   outstanding during the period                              177,596     175,376          176,814       174,338
                                                                                                 
 Weighted average common share                                                                   
   equivalents based on conversion of                                                            
   outstanding stock options                                   22,355          --           21,214            --
                                                             --------   ---------         --------      --------
                                                                                                 
 Weighted average number of Common                                                               
   Shares and equivalents outstanding                                                            
   during the period                                          199,951     175,376          198,028       174,338
                                                             ========   =========         ========      ========
                                                                                                 
 Fully diluted earnings (loss) per share                     $   0.64   $   (0.82)        $   1.16      $  (0.13)
                                                             ========   =========         ========      ========
                                                                                                 
EARNINGS (LOSS) PER SHARE EXPRESSED IN U.S. DOLLARs                                              
                                                                                                 
 Daily average exchange rate of a Canadian                                                       
   dollar for U.S. dollars as reported by the                                                    
   Federal Reserve Bank of New York                          $ 0.6515   $  0.7006         $ 0.6618      $ 0.7071
                                                                                                 
 Basic earnings (loss) per share, in U.S. dollars            $   0.44   $   (0.58)        $   0.78      $  (0.09)
                                                             ========   =========         ========      ========
                                                                                                 
 Fully diluted earnings (loss) per share, in U.S. dollars    $   0.42   $   (0.58)        $   0.77      $  (0.09)
                                                             ========   =========         ========      ========

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