Use of Hash Algorithms for IPsec at the Internet Exchange Points
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H. Ramalho · 2010-02
Abstract
This document discusses the operational practices at Internet Exchange Points (IXPs) with respect to BGP peering, route servers, and security considerations. It describes how IXPs facilitate multilateral peering and the best-practice policies used to maintain stability on shared peering fabrics.
Why This RFC Matters
Internet Exchange Points (IXPs) are physical infrastructure where networks interconnect to exchange traffic locally rather than routing it through transit providers. IXPs reduce latency, lower transit costs, and improve resilience. Major IXPs such as DE-CIX, AMS-IX, and LINX carry hundreds of terabits per second and host hundreds of participants. Route servers at IXPs allow a single BGP session to reach all peers, dramatically simplifying the mesh of bilateral sessions that would otherwise be required.