NDLI: An efficient hybrid recovery mechanism for MPLS-based networks

Content Provider	IEEE Xplore Digital Library
Author	Ali, E.K. Habib, Y.
Copyright Year	2009
Description	Author affiliation: Research Unit PRINCE, ISITCOM, Tunisia (Ali, E.K.; Habib, Y.)
Abstract	Tis paper proposes an improvement to the IETF (Internet Engineering Task Force) standard intra-domain recovery mechanisms based on a combination of the existing IETF standards. The proposed mechanism defines a new fast recovery process that ensures efficient resource utilization. Since the IETF protection switching mechanism follows a pre-planned approach, i.e., it selects a backup path only once at the LSP (Label Switched Path) setup time, it may not reflect the exact status of network resources at the time of a fault. Moreover, backup path computation may infer unsolicited delay before an available backup path can be selected. The proposed solution combines the pre-planned protection switching mechanism with an on-line computation of an available backup path that may be closer to the failing point. The backup path computation is ensured by an efficient and fast engine based on up-to-date network state and capability to support the required Forwarding Equivalence Class (FEC). Once found, a safe transition from protection model to the new backup path is performed. Simulations results prove that the proposed mechanism is able to ensure and maintain an optimized network state regardless of the fault occurrence.
Starting Page	474
Ending Page	480
File Size	459775
Page Count	7
File Format	PDF
ISBN	9781424446728
ISSN	15301346
DOI	10.1109/ISCC.2009.5202347
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-07-05
Publisher Place	Tunisia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Multiprotocol label switching Protocols IP networks Delay Telecommunication traffic Communication system traffic control Protection switching Routing Internet Peer to peer computing
Content Type	Text
Resource Type	Article
Subject	Signal Processing Mathematics Computer Networks and Communications Computer Science Applications Software

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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