Anja Feldmann's website
Caching Locator/ID mappings: An experimental
scalability analysis and its implications
Download Bibtex entry
Juhoon and Iannone, Luigi and Feldmann, Anja
|Title of Book
its own success, the current Internet is facing scalability issues
that lead the research community to explore alternative architectures.
In particular, the Locator/ID Split paradigm, based on the idea of
separating the identity from the location of end-systems, is gaining
momentum and seems to be the most promising candidate for the future
Internet architecture. A critical component of any Locator/ID Split
approach, from a performance and resources consumption perspective, as
well as from a security point of view, is the cache. The 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. Taking as reference protocol
LISP (Locator/ID Separation Protocol), the most successful proposal
currently under discussion at the IETF, this paper presents a thorough
analysis of such a component, including the implications of policies
to increase the level of security, based on real packet-level traces.
Our results prove that even a timeout as short as 60 s provides a high
hit ratio and that the impact of using security policies is small.
Furthermore, a thorough analysis of the scalability of such a
component is provided along with the analysis of which class of
applications contributes the major fraction of cache-misses.