UNIT: V HIGH CAPACITY NETWORKS 16 marks

UNIT: V HIGH CAPACITY NETWORKS

Part B (16 marks for each question)

1. Give the advantages and disadvantages of WDM over TDM.               (16)
2. Explain the SDM and TDM approached in upgrading transmission capacity.  (16)
3. Explain the following application areas
1. Inter-exchange networks                            (8)
2. Local-exchange networks                             (8)
4. Explain the following application areas in detail,
1. Undersea networks                                (8)
2. Enterprise links                                    (8)
5. Explain OTDM in detail.                                   (16)
6. Explain in detail Nonlinear optical loop mirror (NOLM).                   (16)
7. Explain packet interleaving in detail.                           (16)
8. Explain the functions of a synchronizer with tunable delays in detail.           (16)
9. Explain in detail the functions of a routing node in a switch-based network.       (16)
10. Explain deflection routing in a switch-based network.                   (16)

UNIT: IV WAVELENGTH ROUTING NETWORKS

UNIT: IV WAVELENGTH  ROUTING NETWORKS

Part B (16 marks for each question)

1. Explain in detail the static and reconfigurable wavelength routing

networks.                                        (16)

2. Explain in detail ‘degree of wavelength conversion’ in node design.        (16)
3. Explain the following with respect to node design,

                                          i)  Multi-fiber networks                    (8)

  ii)  Degree of transparency                 (8)

4. Explain realization with regard to node design.                    (16)
5. Explain traffic models and performance criteria in network design

and operation.                                    (16)

6. Explain routing and wavelength assignment in detail.                (16)
7. Explain in detail NTT ring testbed.                        (16)
8. Explain in detail the MWTN reconfigurable wavelength routing testbed.    (16)
9. Explain the AON testbed in detail.                            (16)
10. Explain in detail Alcatel’s WDM ring network.                    (16)