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A Deep Dive into the LISP Cache and What ISPs Should Know about It

Abstract : Due to scalability issues that the current Internet is facing, the research community has re-discovered the Locator/ID Split paradigm. As the name suggests, this paradigm is based on the idea of separating the identity from the location of end-systems, in order to increase the scalability of the Internet architecture. One of the most successful proposals, currently under discussion at the IETF, is LISP (Locator/ID Separation Protocol). A critical component of LISP, from a performance and resources consumption perspective, as well as from a security point of view, is the LISP Cache. The LISP Cache is meant to temporarily store mappings, i.e., the bindings between identifiers and locations, in order to provide routers with the knowledge of where to forward packets. This paper presents a thorough analysis of such a component, based on real packet-level traces. Furthermore, the implications of policies to increase the level of security of LISP are also analyzed. Our results prove that even a timeout as short as 60 seconds provides high hit ratio and that the impact of using security policies is small.
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Juhoon Kim, Luigi Iannone, Anja Feldmann. A Deep Dive into the LISP Cache and What ISPs Should Know about It. 10th IFIP Networking Conference (NETWORKING), May 2011, Valencia, Spain. pp.367-378, ⟨10.1007/978-3-642-20757-0_29⟩. ⟨hal-01583403⟩

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