Gwendal SIMON

Gwendal SIMON

Maître de Conférences, HDR
Dépt. Systèmes Réseaux, Cybersécurité et Droit du numérique

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Realistic Storage of Pending Requests in Content-Centric Network Routers


WEI You2, MATHIEU Bertrand2, TRUONG Patrick2, PELTIER Jean-François2, SIMON Gwendal1

Type de document

Communication dans une conférence avec acte


ICCC 2012: 1st IEEE International Conference on Communications in China, 15-17 august 2012, Beijing, China, 2012, pp. 120-125




Content-Centric Networking (CCN) is a novel network paradigm, which aims at moving from the traditional host-to-host network model to a client-to-content one. This shift brings many benefits but also leads a big challenge on the hardware technologies for implementing CCN nodes. For example the Pending Interest Table, one critical component in a CCN node, is involved in every CCN message forwarding process, and needs to be updated every time a packet comes in. The implementation of this table requires a memory that is fast for short access time and also large enough for storing the pending Interests. Unfortunately today’s memory technologies cannot meet these requirements with the current hash-based architecture. After highlighting this limitation, we present a distributed PIT architecture which is based on the Bloom filter structure. The evaluations validate that our solution can reduce the PIT table size and support higher packet arrival rate. Our solution allows to implement this component on today’s fast memory like SRAM. Therefore this proposal can improve the content fetching performance and improve the quality of content delivered in CCN network.


1 : INFO(TB) - Dépt. Informatique (Institut Mines-Télécom-Télécom Bretagne-UEB)
2 : Orange Labs - Lannion (France Télécom)

Mots clés

Information-centric network, Router architecture, Memory management



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