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4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
Presentation Outline . ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
Objective of the paper . ,[object Object],[object Object],[object Object],4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
Presentation Outline . 1.Objective of the Paper . 2 .Introduction to the Problem . 3.Proposed Methodology. 5.Results. 6.Conclusions. 7.References . 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
Introduction to the Problem . ,[object Object],[object Object],4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
Definition of IP . ,[object Object],4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
4/13/2011 IPv6  Address Emerging Trends in Information Technology and Management,Valachil,Mangalore.
IPv6:Distinctive Features . ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],4/13/2011 Continued………………… Emerging Trends in Information Technology and Management,Valachil,Mangalore.
4/13/2011 IPv6 Header Format Traffic Class Flow Label Vers Payload Length Next Header Hop Limit Source Address Destination Address 0 4 12 16 24 31 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
Transition to IPv6: Design Goal . ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
4/13/2011 Transition Scenario . ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Emerging Trends in Information Technology and Management,Valachil,Mangalore.
Transition Mechanisms : Dual Stack . ,[object Object],[object Object],[object Object],[object Object],4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
Figure-2:Dual Stack . Block Diagram of IPv6 Dual Stack. 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
Figure-3:Automatic Tunneling . Figure-4: Configured Tunneling . 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
Translators in IPv6 . ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
Operation of BD-SIIT ,[object Object],[object Object],4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
Figure-5: BD-SIIT Translation Process. Overall Architecture of BD-SIIT . 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
Why BD-SIIT Transition Mechanism ,[object Object],[object Object],[object Object],4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
Stages in BD-SIIT Translation .  ,[object Object],[object Object],[object Object],[object Object],4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
4/13/2011 Figure-7: BD-SIIT Data packet Transmission Process. Emerging Trends in Information Technology and Management,Valachil,Mangalore.
4/13/2011 Figure-6: Translation of IPv6 to IPv4 Header. Translation of IPv4 to IPv6 Header . Emerging Trends in Information Technology and Management,Valachil,Mangalore.
Presentation Outline 1.Objective of the Paper. 2.Introduction to the Problem . 3 . Proposed Methodology. 4.Results. 5.Conclusions. 6.References 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
Proposed Methodology BD-SIIT  Algorithms. 1.IPv4 to IPv6 Header Translation or Vice versa Algorithms. 2.IPv4 to IPv6 Protocol Translation Algorithms . 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore. Table-1:Address Mapping IPv6/IPv4 .   Sl.No IPv6 Address IPv4 Address Address mapping  value 1 ABC2::4321 195.18.231.17 1 2 ABC2::4321 195.18.231.17 2 3 ABC2::4321 223.15.1.3 37
Table-2:DNS46 corresponding to IPv4 and IPv6 .  4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore. Sl.No IPv4 Address IPv6 Address DNS Address mapping value 1 212.17.1.5 ---- B 4 2` 223.15.1.3. 1C::DACF Y 37
Table-3: Address mapping IPv4/IPv6 . 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore. Sl.No IPv4 Address IPv6 Address Address mapping  value 1 195.18.231.17 ABC2::4321 1 2 210.154.76.91 ABC2::4321 2 3 223.15.1.3. ABC2::4321 37
Table-4: V4-V6 enabled Gateway. 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore. IPv4 IPv6 P_IPv4 P_IPv6 TTL M_ value-1 M value-  2 223.15.1.3 1C::DACF IPv4-1 IPv6-1 60s G1 F1
Table-5: IPv4 mapped IPv6 Address. 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore. Sl.No IPv4 Address IPv6 Address Address mapping  value 1 195.18.231.17 ABC2::4321 1 2 210.154.76.91 ABC2::4321 2 3 223.15.1.3. ABC2::4321 37
4/13/2011 Proposed Methodology. . Emerging Trends in Information Technology and Management,Valachil,Mangalore.
4/13/2011 The IPv6 to IPv4 header conversion. Emerging Trends in Information Technology and Management,Valachil,Mangalore.
4/13/2011 BD-SIIT Protocol Translation . 1: Forward address mapping  Flowchart . Emerging Trends in Information Technology and Management,Valachil,Mangalore.
4/13/2011 Forward operation  BD-SIIT with UDP . BD-SIIT  Forward  Flowchart . Emerging Trends in Information Technology and Management,Valachil,Mangalore.
BD-SIIT Translation .  4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
4/13/2011 IPv6->IPv4: Feedback operation(BD-SIIT with TCP) Emerging Trends in Information Technology and Management,Valachil,Mangalore.
4/13/2011 Drawbacks of BD-SIIT(Bi Directional Stateless IP/ICMP Translator ) . ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Emerging Trends in Information Technology and Management,Valachil,Mangalore.
[object Object],[object Object],[object Object],[object Object],4/13/2011 NAT-PT Emerging Trends in Information Technology and Management,Valachil,Mangalore.
[object Object],4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
Components of NAT-PT 4/13/2011 NAT-PT Engine . Header Translation Address Allocation Address Translation lookup Tables Routing Message Translation Emerging Trends in Information Technology and Management,Valachil,Mangalore.
NAT-PT Steps  ,[object Object],[object Object],[object Object],4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
NAT-PT Packet Flow . 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
Working Methodology of NAT-PT . Fig.3.Communication between IPv4/IPv6 and IPv6/IPv6. 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
[object Object],[object Object],[object Object],4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
4/13/2011 04/20/11 Types  of NAT-PT .  ,[object Object],[object Object],[object Object],[object Object],Emerging Trends in Information Technology and Management,Valachil,Mangalore.
Limitations of NAT-PT . 1.NAT-PT is the lack of end-to-end security . 2.NAT-PT performs address translation , applications that carry the IP addresses in the higher layers will not work . 3.NAT-PT does not supports the communication between IPv4 networks and IPv6 networks with in a same network . 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
Comparison and Contrast between BD-SIIT and NAT-PT . 4/13/2011 BD-SIIT Network model . Emerging Trends in Information Technology and Management,Valachil,Mangalore.
Performance evaluation Metrics In this Paper we have calculated three performance evaluation metrics. 1.End to End delay 2.Throughput 3.Round trip time(RTT)  N rec 1.Mean End to End delay=  ∑  i=1  EEDi/Nrec where  EEDi =  Tdi- Tsi where EEDi is the end to end delay of ith packet. Tsi is the  Source packet i created and Tdi is the Destination packet which is created at Destination. Nrec is the total number of packets received at Dest host and Mean EED is  the mean value of each communication session 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
The mean throughput for a sequence of packets of specific size is calculated by using equations 1 and 2. MeanThr = Σ N  j =1  Thrj   /N  -------------(1) where  Thr=Packetsreceived(Pr)/Packets generated(Pg)*100%.--------------(2) Where  Thrj is the value of the throughput when the packet j is received at intermediate device like DSTM gateway,BD-SIIT Gateway,v4/v6 Router and N is the number of received packets at intermediate device,Pr is the no of packets received at intermediate device and Pg is the number of packets created by  source host .  4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
4/13/2011 NS-2 Simulation parameters . Emerging Trends in Information Technology and Management,Valachil,Mangalore. Simulation Parameters Value 1.Buffer Size 500 Packets 2. Propogation Delay 10ms 3.payload size 200 Bytes 4.Very traffic Load 6~240 Nodes. 5.Queue Management Scheme Drop tail.
RESULTS 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
Summary ,[object Object],[object Object],[object Object],[object Object],[object Object],4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
Continued……. ,[object Object],[object Object],[object Object],[object Object],[object Object],4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
4/13/2011 Questions? “ The difference between theory and practice is even larger in practice than in theory [...]” Emerging Trends in Information Technology and Management,Valachil,Mangalore.
References [ 1].S.Deering and R. Hinden “Internet Protocol Version 6(IPv6) Specification”, RFC 2460,December 1998 . [2].S.Tanenbaum,“Computer Networks”,Third Edition, Prentice Hall Inc.,1996, pp. 686,413- 436,437-449 . [3].Behrouz A.Forouzan,Third Edition,“TCP/IP Protocol Suite”  . [4].Kurose.J. & Ross.K.(2005) Computer Networking:A top-down approach featuring the Internet.3 rd  ed,(Addison Wesley). [5].Gilligan.&Nodmar.E.(1996)Transition Mechanisms for IPv6 Hosts and Routers.RFC 1933,APRIL 1996 . [6].E.Nordmark,”Stateless IP/ICMP Translator (SIIT)”.RFC 2765,Feb2000 .  4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
[7].C.Huitema ,R.Austein,S.Satapati,R.Van der Pol,“Evaluation of IPv6 transition mechanisms for unmanaged networks “,RFC 3904,September 2004   .  [8].Okazaki,A Desai,“NAT-PT Security Considerations”(June2003),at  http://www.ietf.org/internetdrafts/draft-okazaki-v6ops-natpt- Security-00.txt . [ 9].Carpenter, B. and K.Moore,"Connection of IPv6 Domains via IPv4 Clouds",RFC 3056,February 2001 .  [10].Thomson,S. and T.Narten,"IPv6 Stateless Address Auto configuration",RFC 2462,December 1998 . [11].J.Bound .Assignment of IPv4 Global Addresses to IPv6 Hosts(AIIH) .  [12].An overview of the introduction of IPv6 in the Internet”, W.Biemolt et al .Trabajo en curso . [13].RFC 2765.”Stateless IP/ICMP  Translation algorithm(SIIT) “,E.Nordmark.Febrero 2000 . [ 14].RFC2766.“Network Address Translation–Protocol Translation(NAT-PT)”,Tsirtsis,P.Srisuresh,February 2000 . 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
4/13/2011 Thank you for listening ,[object Object],[object Object],[object Object],Emerging Trends in Information Technology and Management,Valachil,Mangalore.
4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.

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Etitm 2011 bd-siit-nat_pt

  • 1. 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
  • 2.
  • 3.
  • 4. Presentation Outline . 1.Objective of the Paper . 2 .Introduction to the Problem . 3.Proposed Methodology. 5.Results. 6.Conclusions. 7.References . 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
  • 5.
  • 6.
  • 7. 4/13/2011 IPv6 Address Emerging Trends in Information Technology and Management,Valachil,Mangalore.
  • 8.
  • 9.
  • 10. 4/13/2011 IPv6 Header Format Traffic Class Flow Label Vers Payload Length Next Header Hop Limit Source Address Destination Address 0 4 12 16 24 31 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
  • 11.
  • 12.
  • 13.
  • 14. Figure-2:Dual Stack . Block Diagram of IPv6 Dual Stack. 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
  • 15.
  • 16. Figure-3:Automatic Tunneling . Figure-4: Configured Tunneling . 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
  • 17.
  • 18.
  • 19. Figure-5: BD-SIIT Translation Process. Overall Architecture of BD-SIIT . 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
  • 20.
  • 21.
  • 22. 4/13/2011 Figure-7: BD-SIIT Data packet Transmission Process. Emerging Trends in Information Technology and Management,Valachil,Mangalore.
  • 23. 4/13/2011 Figure-6: Translation of IPv6 to IPv4 Header. Translation of IPv4 to IPv6 Header . Emerging Trends in Information Technology and Management,Valachil,Mangalore.
  • 24. Presentation Outline 1.Objective of the Paper. 2.Introduction to the Problem . 3 . Proposed Methodology. 4.Results. 5.Conclusions. 6.References 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
  • 25. Proposed Methodology BD-SIIT Algorithms. 1.IPv4 to IPv6 Header Translation or Vice versa Algorithms. 2.IPv4 to IPv6 Protocol Translation Algorithms . 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
  • 26. 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore. Table-1:Address Mapping IPv6/IPv4 . Sl.No IPv6 Address IPv4 Address Address mapping value 1 ABC2::4321 195.18.231.17 1 2 ABC2::4321 195.18.231.17 2 3 ABC2::4321 223.15.1.3 37
  • 27. Table-2:DNS46 corresponding to IPv4 and IPv6 . 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore. Sl.No IPv4 Address IPv6 Address DNS Address mapping value 1 212.17.1.5 ---- B 4 2` 223.15.1.3. 1C::DACF Y 37
  • 28. Table-3: Address mapping IPv4/IPv6 . 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore. Sl.No IPv4 Address IPv6 Address Address mapping value 1 195.18.231.17 ABC2::4321 1 2 210.154.76.91 ABC2::4321 2 3 223.15.1.3. ABC2::4321 37
  • 29. Table-4: V4-V6 enabled Gateway. 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore. IPv4 IPv6 P_IPv4 P_IPv6 TTL M_ value-1 M value- 2 223.15.1.3 1C::DACF IPv4-1 IPv6-1 60s G1 F1
  • 30. Table-5: IPv4 mapped IPv6 Address. 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore. Sl.No IPv4 Address IPv6 Address Address mapping value 1 195.18.231.17 ABC2::4321 1 2 210.154.76.91 ABC2::4321 2 3 223.15.1.3. ABC2::4321 37
  • 31. 4/13/2011 Proposed Methodology. . Emerging Trends in Information Technology and Management,Valachil,Mangalore.
  • 32. 4/13/2011 The IPv6 to IPv4 header conversion. Emerging Trends in Information Technology and Management,Valachil,Mangalore.
  • 33. 4/13/2011 BD-SIIT Protocol Translation . 1: Forward address mapping Flowchart . Emerging Trends in Information Technology and Management,Valachil,Mangalore.
  • 34. 4/13/2011 Forward operation BD-SIIT with UDP . BD-SIIT Forward Flowchart . Emerging Trends in Information Technology and Management,Valachil,Mangalore.
  • 35. BD-SIIT Translation . 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
  • 36. 4/13/2011 IPv6->IPv4: Feedback operation(BD-SIIT with TCP) Emerging Trends in Information Technology and Management,Valachil,Mangalore.
  • 37.
  • 38.
  • 39.
  • 40. 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
  • 41.
  • 42. Components of NAT-PT 4/13/2011 NAT-PT Engine . Header Translation Address Allocation Address Translation lookup Tables Routing Message Translation Emerging Trends in Information Technology and Management,Valachil,Mangalore.
  • 43.
  • 44. 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
  • 45. NAT-PT Packet Flow . 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
  • 46. Working Methodology of NAT-PT . Fig.3.Communication between IPv4/IPv6 and IPv6/IPv6. 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
  • 47.
  • 48.
  • 49. Limitations of NAT-PT . 1.NAT-PT is the lack of end-to-end security . 2.NAT-PT performs address translation , applications that carry the IP addresses in the higher layers will not work . 3.NAT-PT does not supports the communication between IPv4 networks and IPv6 networks with in a same network . 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
  • 50. Comparison and Contrast between BD-SIIT and NAT-PT . 4/13/2011 BD-SIIT Network model . Emerging Trends in Information Technology and Management,Valachil,Mangalore.
  • 51. Performance evaluation Metrics In this Paper we have calculated three performance evaluation metrics. 1.End to End delay 2.Throughput 3.Round trip time(RTT) N rec 1.Mean End to End delay= ∑ i=1 EEDi/Nrec where EEDi = Tdi- Tsi where EEDi is the end to end delay of ith packet. Tsi is the Source packet i created and Tdi is the Destination packet which is created at Destination. Nrec is the total number of packets received at Dest host and Mean EED is the mean value of each communication session 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
  • 52. The mean throughput for a sequence of packets of specific size is calculated by using equations 1 and 2. MeanThr = Σ N j =1 Thrj /N -------------(1) where Thr=Packetsreceived(Pr)/Packets generated(Pg)*100%.--------------(2) Where Thrj is the value of the throughput when the packet j is received at intermediate device like DSTM gateway,BD-SIIT Gateway,v4/v6 Router and N is the number of received packets at intermediate device,Pr is the no of packets received at intermediate device and Pg is the number of packets created by source host . 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
  • 53. 4/13/2011 NS-2 Simulation parameters . Emerging Trends in Information Technology and Management,Valachil,Mangalore. Simulation Parameters Value 1.Buffer Size 500 Packets 2. Propogation Delay 10ms 3.payload size 200 Bytes 4.Very traffic Load 6~240 Nodes. 5.Queue Management Scheme Drop tail.
  • 54. RESULTS 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
  • 55. 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
  • 56.
  • 57.
  • 58. 4/13/2011 Questions? “ The difference between theory and practice is even larger in practice than in theory [...]” Emerging Trends in Information Technology and Management,Valachil,Mangalore.
  • 59. References [ 1].S.Deering and R. Hinden “Internet Protocol Version 6(IPv6) Specification”, RFC 2460,December 1998 . [2].S.Tanenbaum,“Computer Networks”,Third Edition, Prentice Hall Inc.,1996, pp. 686,413- 436,437-449 . [3].Behrouz A.Forouzan,Third Edition,“TCP/IP Protocol Suite” . [4].Kurose.J. & Ross.K.(2005) Computer Networking:A top-down approach featuring the Internet.3 rd ed,(Addison Wesley). [5].Gilligan.&Nodmar.E.(1996)Transition Mechanisms for IPv6 Hosts and Routers.RFC 1933,APRIL 1996 . [6].E.Nordmark,”Stateless IP/ICMP Translator (SIIT)”.RFC 2765,Feb2000 . 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
  • 60. [7].C.Huitema ,R.Austein,S.Satapati,R.Van der Pol,“Evaluation of IPv6 transition mechanisms for unmanaged networks “,RFC 3904,September 2004 . [8].Okazaki,A Desai,“NAT-PT Security Considerations”(June2003),at http://www.ietf.org/internetdrafts/draft-okazaki-v6ops-natpt- Security-00.txt . [ 9].Carpenter, B. and K.Moore,"Connection of IPv6 Domains via IPv4 Clouds",RFC 3056,February 2001 . [10].Thomson,S. and T.Narten,"IPv6 Stateless Address Auto configuration",RFC 2462,December 1998 . [11].J.Bound .Assignment of IPv4 Global Addresses to IPv6 Hosts(AIIH) . [12].An overview of the introduction of IPv6 in the Internet”, W.Biemolt et al .Trabajo en curso . [13].RFC 2765.”Stateless IP/ICMP Translation algorithm(SIIT) “,E.Nordmark.Febrero 2000 . [ 14].RFC2766.“Network Address Translation–Protocol Translation(NAT-PT)”,Tsirtsis,P.Srisuresh,February 2000 . 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.
  • 61.
  • 62. 4/13/2011 Emerging Trends in Information Technology and Management,Valachil,Mangalore.

Notes de l'éditeur

  1. ICCANA-2011,NMAMIT,Nitte,South Canara.