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

                           




                             Les réseaux optiques



       
                              




     
              
                                                                             
Plan

 
 
 
 
 
 
 




                             
Plan

 
 
 
 
 
 
 




                             
Une évolution attendue

 

 

  

      

    

   


                                           
Une évolution nécessaire

 

     
    

 

 
       

 
     

 


                                                      
La magie de WDM
 
  
        
      

 
     
     

  
  

  
     

 
    

  
        



                                                                         
Détail WDM

  
  
  

 

 
  

 
    
        


                                                      
Plan

 
 
 
 
 
 
 




                             
Réseau optique: les composants

 

 
     

 
     

 
     

 
     

 

       

                                                                
3-db Coupleur

                 λ1
                                         λ1+λ2




                 λ2
                                         λ1+λ2

   
   
   




                                        
OXC

                          λ1
        FO : WDM                 OXC
                          λ2



                                          Logique de contrôle


 
 
    
    
 
     
      

                                                            
OXC (suite)

 
    
    
    
          
         
           


 
      
      
      
      
      
      

                                                            
Plan

 
 
 
 
 
 
 




                             
Un réseau optique maillé


                                    OXC
                        OXC          F
                         E


                                                 OXC
          OXC   Lightpath                         D
           A       !1

                      OXC           OXC
                       B             C




Lightpath = canal de bout en bout (généralement avec le même lambda)
(remarque: nous sommes ici en mode commutation de circuit)
                                                             
Routage et affectation de lambda

   

   
     
         
     
            
           


 
      
        
      
        

                                                                  
RWA: un autre regard

 

 
     
     
    


 
    
    
    
     


                                                          
Trafic Grooming
 

 
     
     

 
     
      

 
       
     
    


                                                      
Plan

 
 
 
 
 
 
 




                             
Nécessité de protection

    
  

  

     

       

         

     

 
                                                         
Disponibilité
 
       


  
    

                                 PREMIUM   GOLD     SILVER   BRONZE
                  Availability   99.999%   99.99%   99.9%     99%



  




                                                            
Protection

  
       



   

         
       

        

         
     

                                                      
Un exemple 2:1




                     X




             S           D
                     C




                     B




                   
Plan

 
 
 
 
 
 
 




                             
ITU G.709: Digital Wrapper: interface pour
       le OTN (optical Transport Network)

   
    
    
  
       
       
      
      
    
    
    
    
 
  


                                                   
G.709: Format
     
    
       
      
       
      

 
       
       
       
      

 
    
       


                                                      
Plan

 
 
 
 
 
 
 




                             
Superposition (Overlay) des
    infrastructures
 
 
   




                           L1=optique
             L3=IP                        L2=ATM/Ethernet

                                                    
Vers les réseaux optiques
       intelligents
    
    
       


   
            Wavelength
                                  Router
                                         OXC
      
                                     WDM link



      

                                                             GMPLS
                                                             Plane


                                                                 UNI


                                  Access
                                  Station       Tx        IP router                 Rx

                                                                               
                                                     Local Add         Local Drop
ASON

        

      
       
              

      
       

      

        


                                                            
Architecture sur 3 plans


      
              
      
              
      
              
               




                                                         
ASON/GMPLS : Architecture en 3
            plans


                                                Plan de Contrôle
                                                Control Plane




                                                                

         UNI                                 Plan Plane
                                             Data des données                                    UNI
                                                                                        



                                                                           
                                                 




                                            Plan de gestion
                                            Management Plane


Interaction plan de gestion/ Plan de contrôle                            ONE=Optical Network Element


                                                                                        
GMPLS

       

      
       

      
         

      
       
              
               
              
              
               




                                                               
Les liaisons physique

      
       
              
              
              
      
              
               
              
               
       
              
              

                                                         
La hiérarchie

      
      
       
      
        
      
       
              




                                                 
La hiérarchie
     Gaine
    physique                      MPLS
                Fibre   Lambdas
               (FSC)
                         (LSC)


                         TDM




                               
GMPLS: composants

      
               
                  
               
      
               
                 
      
              
                
                 
               


                                                           
RSVP-TE

      
      
      
                
               
               
                 
               




                                                         
OSPF-TE

      
        
       
                
                
                     
      
               
               
               
                 




                                                             
Plan

 
 
 
 
 
 
 




                             
OPS
 

    
             
       
         
            


                                 Extraction/Analyse
                                 de l’en-tête

                                                      FDL


                    FDL
                                                            Paquet émis



                                                                  
paquet reçu
Résolution de conflit à la sortie

  

   
        
          

  
       
           
       

   
         
        
       
                                                       
OBS
  
     
    
 
      
            
       
      
      
   




         setup                          burst

                  offset

                                                                
OBS (suite)
 

      
      

 

 

 
        

      

  

   
  

                                                                         
Merci


                




                   
GMPLS: Functional Blocks
                                                
                                               
        
                                                 
                                
                               
                                           
                                        
                         
                                                              
                                                          


                   
                 
                                    B
                                    A           C




                                                                   

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Thd Ct3 19juin2009 Kc

  • 1.   Les réseaux optiques           
  • 2. Plan                
  • 3. Plan                
  • 4. Une évolution attendue                         
  • 5. Une évolution nécessaire                         
  • 6. La magie de WDM                                       
  • 7. Détail WDM                    
  • 8. Plan                
  • 9. Réseau optique: les composants                              
  • 10. 3-db Coupleur λ1 λ1+λ2 λ2 λ1+λ2        
  • 11. OXC λ1 FO : WDM OXC λ2 Logique de contrôle                      
  • 12. OXC (suite)                               
  • 13. Plan                
  • 14. Un réseau optique maillé OXC OXC F E OXC OXC Lightpath D A !1 OXC OXC B C Lightpath = canal de bout en bout (généralement avec le même lambda) (remarque: nous sommes ici en mode commutation de circuit)  
  • 15. Routage et affectation de lambda                                       
  • 16. RWA: un autre regard                       
  • 17. Trafic Grooming                               
  • 18. Plan                
  • 19. Nécessité de protection                               
  • 20. Disponibilité             PREMIUM GOLD SILVER BRONZE Availability 99.999% 99.99% 99.9% 99%     
  • 21. Protection                                      
  • 22. Un exemple 2:1 X S D C B  
  • 23. Plan                
  • 24. ITU G.709: Digital Wrapper: interface pour le OTN (optical Transport Network)                                     
  • 25. G.709: Format                                           
  • 26. Plan                
  • 27. Superposition (Overlay) des infrastructures       L1=optique L3=IP L2=ATM/Ethernet  
  • 28. Vers les réseaux optiques intelligents                   Wavelength Router    OXC   WDM link   GMPLS Plane UNI Access Station Tx IP router Rx   Local Add Local Drop
  • 29. ASON                    
  • 30. Architecture sur 3 plans               
  • 31. ASON/GMPLS : Architecture en 3 plans Plan de Contrôle Control Plane   UNI Plan Plane Data des données UNI     Plan de gestion Management Plane Interaction plan de gestion/ Plan de contrôle ONE=Optical Network Element  
  • 32. GMPLS                        
  • 33. Les liaisons physique                          
  • 34. La hiérarchie                  
  • 35. La hiérarchie Gaine physique MPLS Fibre Lambdas (FSC) (LSC) TDM  
  • 36. GMPLS: composants                                      
  • 37. RSVP-TE                        
  • 38. OSPF-TE                                  
  • 39. Plan                
  • 40. OPS                                   Extraction/Analyse de l’en-tête FDL FDL Paquet émis   paquet reçu
  • 41. Résolution de conflit à la sortie                                                   
  • 42. OBS                                   setup burst offset  
  • 43. OBS (suite)                                  
  • 44. Merci   
  • 45. GMPLS: Functional Blocks                           B A C  