Quality of service based routing: a performance perspective
Proceedings of the ACM SIGCOMM '98 conference on Applications, technologies, architectures, and protocols for computer communication
MPLS: technology and applications
MPLS: technology and applications
Routing Bandwidth Guaranteed Paths with Local Restoration in Label Switched Networks
ICNP '02 Proceedings of the 10th IEEE International Conference on Network Protocols
Routing Bandwidth Guaranteed Paths with Restoration in Label Switched Networks
ICNP '01 Proceedings of the Ninth International Conference on Network Protocols
Network Recovery: Protection and Restoration of Optical, SONET-SDH, IP, and MPLS
Network Recovery: Protection and Restoration of Optical, SONET-SDH, IP, and MPLS
MPLS advantages for traffic engineering
IEEE Communications Magazine
Feasibility of IP restoration in a tier 1 backbone
IEEE Network: The Magazine of Global Internetworking
Priority-based allocation of network resources in multi-class MPLS networks
Proceedings of the 7th International Conference on Frontiers of Information Technology
Graceful network state migrations
IEEE/ACM Transactions on Networking (TON)
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We present NPP – a new framework for online routing of bandwidth guaranteed paths with local restoration. NPP relies on the propagation of only aggregate link usage information [2,9] through routing protocols. The key advantage of NPP is that it delivers the bandwidth sharing performance achieved by propagating complete per path link usage information [9], while incurring significantly reduced routing protocol overhead. We specify precise implementation models for the restoration routing frameworks presented in [1] and [2] and compare their traffic placement characteristics with those of NPP. Simulation results show that NPP performs significantly better in terms of number of LSPs accepted and total bandwidth placed on the network. For 1000 randomly selected LSP requests on a 20-node homogenous ISP network [8], NPP accepts 775 requests on average compared to 573 requests accepted by the framework of [2] and 693 requests accepted by the framework of [1]. Experiments with different sets of LSP requests and on other networks indicate that NPP results in similar performance gains.