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A Distributed E2E Recovery Mechanism for MPLS Networks

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2 Author(s)
Kamel, A.E. ; Res. Unit(PRINCE), Univ. of Sousse, Tunisia ; Youssef, H.

This paper presents a new solution for inter-domain recovery within MPLS networks. The proposed mechanism is based on efficient collaboration between several entities called PCEs (Path Computation Elements). One PCE is designated at each domain. All PCEs should communicate in order to ensure suitable End-to-End(E2E) failure handling, recovery and restoration. Based on normative instructions described in the RFC 5298 and the Backward Recursive PCE-based Computation approach (BRPC) presented in RFC 5441, the new mechanism offers an opportunity to achieve E2E recovery using up-to-date information and giving a way to maintain correct network states with respect to intra-domain as well as inter-domain contexts, without care of heterogeneity and autonomy of crossed areas. Simulation results prove that, compared to existing E2E protection and on-demand backup path recovery mechanisms, the proposed solution is able to support, more efficiently, inter-domain recovery regardless of per-domains policies and rules, by ensuring lower recovery time, improved resources management and low packet loss/disorder bounds.

Published in:

Parallel, Distributed and Network-Based Processing (PDP), 2012 20th Euromicro International Conference on

Date of Conference:

15-17 Feb. 2012