A reordering-free multipath traffic engineering architecture for DiffServ-MPLS networks
Please cite this item using this persistent URLhttp://hdl.handle.net/11693/27550
Proceedings of the 3rd IEEE Workshop on IP Operations and Management, IPOM 2003
- Conference Paper 
Institute of Electrical and Electronics Engineers Inc.
We propose a novel traffic engineering architecture for IP networks with multiprotocol label switching (MPLS) backbones. In this architecture, two (primary and secondary) label switched paths (LSPs) are established among every pair of IP routers located at the edge of an MPLS cloud. Traffic between a source-destination pair is then split between the primary and secondary LSPs using an ABR-like explicit-rate feedback gathered from the network. Taking into consideration the packet reordering effect of packet-based load balancing schemes, we propose a novel traffic splitting mechanism that operates on a per-flow basis. We show, using a variety of scenarios, that deploying flow-based multipath traffic engineering not only provides significantly and consistently better throughput than that of a single path, but is also void of any packet reordering. © 2003 IEEE.
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