On the correctness of IBGP configuration
Proceedings of the 2002 conference on Applications, technologies, architectures, and protocols for computer communications
Analysis of the MED Oscillation Problem in BGP
ICNP '02 Proceedings of the 10th IEEE International Conference on Network Protocols
The case for separating routing from routers
Proceedings of the ACM SIGCOMM workshop on Future directions in network architecture
Preventing persistent oscillations and loops in IBGP configuration with route reflection
Computer Networks: The International Journal of Computer and Telecommunications Networking
Design and implementation of a routing control platform
NSDI'05 Proceedings of the 2nd conference on Symposium on Networked Systems Design & Implementation - Volume 2
Scaling IP Routing with the Core Router-Integrated Overlay
ICNP '06 Proceedings of the Proceedings of the 2006 IEEE International Conference on Network Protocols
Intra-domain routing convergence with centralized control
Computer Networks: The International Journal of Computer and Telecommunications Networking
Designing optimal iBGP route-reflection topologies
NETWORKING'08 Proceedings of the 7th international IFIP-TC6 networking conference on AdHoc and sensor networks, wireless networks, next generation internet
Scalable support of interdomain routes in a single AS
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Quantifying the BGP routes diversity inside a tier-1 network
NETWORKING'06 Proceedings of the 5th international IFIP-TC6 conference on Networking Technologies, Services, and Protocols; Performance of Computer and Communication Networks; Mobile and Wireless Communications Systems
Address-based route reflection
Proceedings of the Seventh COnference on emerging Networking EXperiments and Technologies
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The Internet is organized as a collection of networks called Autonomous Systems (ASes). The Border Gateway Protocol (BGP) is the glue that connects these administrative domains. Communication is thus possible between users worldwide and each network is responsible of sharing reachability information to peers through BGP. Protocol extensions are periodically added because the intended use and design of BGP no longer fit the current demands. Scalability concerns make the required internal BGP (iBGP) full mesh difficult to achieve in today's large networks and therefore network operators resort to confederations or Route Reflectors (RRs) to achieve full connectivity. These two options come with a set of flaws of their own such as persistent routing oscillations, deflections, forwarding loops etc. In this paper we present oBGP, a new architecture for the redistribution of external routes inside an AS. Instead of relying on the usual statically configured set of iBGP sessions, we propose to use an overlay of routing instances that are collectively responsible for (i) the exchange of routes with other ASes, (ii) the storage of internal and external routes, (iii) the storage of the entire routing policy configuration of the AS and (iv) the computation and redistribution of the best routes towards Internet destinations to each router of the AS.