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   TWO FISCAL QUARTERS ENDED
                                                   ---------------------  ---------------------------
                                                    Nov 1,       Nov 2,        Nov 1,       Nov 2,
                                                     1998         1997          1998         1997
                                                   --------     --------      --------     --------
                                                                               
BASIC EARNINGS PER SHARE                                                                  
                                                                                          
 Net earnings                                      $ 53,314     $ 57,993      $ 88,834     $122,347
                                                   ========     ========      ========     ======== 
                                                                                          
 Common Shares outstanding                                                                
  at the beginning of the period                    176,558      174,245       175,686      171,859
                                                                                          
 Weighted average number of Common Shares                                                 
   issued during the period                             208          488           744        1,971
                                                   --------     --------      --------     --------
                                                                                          
 Weighted average number of Common Shares                                                 
   outstanding during the period                    176,766      174,733       176,430      173,830
                                                   ========     ========      ========     ======== 
                                                                                          
 Basic earnings per share                          $   0.30     $   0.33      $   0.50     $   0.70
                                                   ========     ========      ========     ======== 
                                                                                          
FULLY DILUTED EARNINGS PER SHARE                                                          
                                                                                          
 Earnings before imputed earnings                  $ 53,314     $ 57,993      $ 88,834     $122,347
                                                                                          
 After tax imputed earnings from the investment                                           
   of funds received through dilution                    --        4,363            --        8,342
                                                   --------     --------      --------     --------
                                                                                          
 Adjusted net earnings                             $ 53,314     $ 62,356      $ 88,834     $130,689
                                                   ========     ========      ========     ======== 
                                                                                          
 Weighted average number of Common Shares                                                 
   outstanding during the period                    176,766      174,733       176,430      173,830
                                                                                          
 Weighted average common share                                                            
   equivalents based on conversion of                                                     
   outstanding stock options                             --       15,783            --       15,953
                                                   --------     --------      --------     --------
                                                                                          
 Weighted average number of Common                                                        
   Shares and equivalents outstanding                                                     
   during the period                                176,766      190,516       176,430      189,783
                                                   ========     ========      ========     ======== 
                                                                                          
 Fully diluted earnings per share                  $   0.30     $   0.33      $   0.50     $   0.69
                                                   ========     ========      ========     ======== 
                                                                                          
EARNINGS 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                $ 0.6520     $ 0.7204      $ 0.6667     $ 0.7223
                                                                                          
 Basic earnings per share, in U.S. dollars         $   0.20     $   0.24      $   0.34     $   0.51
                                                   ========     ========      ========     ======== 
                                                                                          
 Fully diluted earnings per share, in U.S. dollars $   0.20     $   0.24      $   0.34     $   0.50
                                                   ========     ========      ========     ======== 


                                (Page 28 of 30)