Development of simulation tools for path recovery mechanism in MPLS networks | |
| Author | Meharjan, Prabin Kumar Singh |
| Call Number | AIT RSPR no.ICT-12-02 |
| Subject(s) | MPLS standard Computer networks Traffic engineering |
| Note | A research study submitted in partial ful llment of the requirements for the degree of Master of Engineering in Information and Communication Technologies, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Research studies project report ; no. ICT-12-02 |
| Abstract | Nowadays even with the few seconds of failure in the network causes huge loss as well as there is degradation on quality of service. Customer wants service without any failure, delay etc. So, fault recovery operation is very important for service provider in the core networks. With the previous proposed algorithm, failure detection time depend on the number of hello message and if the hello message duration is long then it takes quite long time to detect the failure. The traditional recovery mechanism such as Makam, Haskin precalcuates the backup path by ingress node and there is separate backup path for recovery operation. Therefore there is waste of resources since that backup path is not utilized when there is no failure. As the distance from ingress to the egress node increases then packet drop as well as service disruption time also increases. If we use PathErr message to detect the error on the path, then it takes short time to recover the path as well as if we use oine path calculation instead of L3 routing then path recovery time is very fast. In this research, once the ingress node detects the PathErr message then it sends PathTear message to the corresponding LSR to release the path and reroute to the alternate path. With the proposed algorithm, once the ingress node detects the PathErr message then object precal-psb is created and check the destination and tunnel id continuously by ignoring previous link. When it nds the destination and tunnel id then reroute to alternate path. |
| Year | 2012 |
| Corresponding Series Added Entry | Asian Institute of Technology. Research studies project report ; no. ICT-12-02 |
| Type | Research Study Project Report (RSPR) |
| School | School of Engineering and Technology (SET) |
| Department | Department of Information and Communications Technologies (DICT) |
| Academic Program/FoS | Information and Communication Technology (ICT) |
| Chairperson(s) | Teerapat Sanguankotchakorn; |
| Examination Committee(s) | Ahmed, Kazi M. ;Poompat Saengudomlert; |
| Scholarship Donor(s) | Asian Institute of Technology Fellowship; |
| Degree | Research Studies Project Report (M. Eng.) - Asian Institute of Technology, 2012 |