Beyond MPLS ... Less is More
ABSTRACT Multiprotocol label switching possesses a simple data plane that has enabled new services and functions operating in many service provider networks. Yet, the MPLS control plane can impose both technical and operational challenges. This article explores these challenges and examines recent advances in IP routing technology suggesting that all services - including those that are MPLS-based - can be delivered over networks running only IP.
Article: IP fast reroute framework
Article: LDP failure detection and recovery[show abstract] [hide abstract]
ABSTRACT: In the last few years, multiprotocol label switching has been successfully, deployed by the majority of service providers worldwide. The label distribution protocol is used in many MPLS networks for distributing labels to establish the label switched paths. This article focuses on LDP failures, namely failures that may occur in LDP while the underlining interior gateway protocol of choice, and the physical connections are operating normally. Since LDP and MPLS in general do not have intrinsic means for detecting these failures, new mechanisms have to be introduced to handle them. Furthermore, the IGP may remain unaware of the LDP failure, and continue to direct traffic to the faulty path. To resolve this situation, coupling between LDP and the routing protocol may have to be introduced. In this article, we discuss all aspects related to handling LDP failures: discovery, location, notification, recovery, and prevention.IEEE Communications Magazine 11/2004; · 3.66 Impact Factor
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ABSTRACT: Multiprotocol label switching (MPLS) is a tunneling technology used in many service provider networks. The most popular MPLS-enabled application in use today is the MPLS virtual private network, MPLS VPNs were developed to operate over MPLS networks, but they can also run over native IP networks. This offers providers flexibility in network-deployment choices, improved routing system scalability, and greater reach to customers. The key element is the ability to encapsulate MPLS packets in IP tunnels.IEEE Internet Computing 06/2005; 9(3):68- 72. · 2.04 Impact Factor