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INFOCOM
2009
IEEE

Multi-VPN Optimization for Scalable Routing via Relaying

10 years 5 months ago
Multi-VPN Optimization for Scalable Routing via Relaying
—Enterprise networks are increasingly adopting Layer 3 Multiprotocol Label Switching (MPLS) Virtual Private Network (VPN) technology to connect geographically disparate locations. The any-to-any direct connectivity model of this technology involves a very high memory footprint and is causing associated routing tables in the service provider’s routers to grow very large. The concept of Relaying was proposed earlier [9] to separately minimize the routing table memory footprint of individual VPNs, and involves selecting a small number of hub routers to maintain complete reachability information for that VPN, and enabling non-hub spoke routers with reduced routing tables to achieve any-to-any reachability by routing traffic via a hub. A large service provider network typically hosts many thousands of different VPNs. In this paper, we generalize Relaying to the multi-VPN environment, and consider new constraints on resources shared across VPNs, such as router uplink bandwidth and memor...
MohammadHossein Bateni, Alexandre Gerber, Mohammad
Added 24 May 2010
Updated 24 May 2010
Type Conference
Year 2009
Where INFOCOM
Authors MohammadHossein Bateni, Alexandre Gerber, Mohammad Taghi Hajiaghayi, Subhabrata Sen
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