On the Design of Integrated Forwarding and Caching Policies in Named-Data Networking

Speaker : Udo Krieger
Otto-Friedrich-University Bamberg
Date: 11/03/2015
Time: 11:00 am - 12:00 pm
Location: LINCS Meeting Room 40


Abstract: Current IP-based networks are unable to fully exploit the capabilities ofthe increasing number of multi-homed mobile terminals. We argue thatNamed-Data Networking (NDN) can fill the gap. First, we elaborate on therequirements for NDN packet forwarding to multi-homed mobile terminalsand categorize forwarding strategies according to their ability to fulfill theserequirements. Further, we describe the initial design of an advanced multi-path forwarding strategy that is derived from performance insights gainedby a CCNx implementation. Secondly, we investigate the performance of aLRU cache replacement policy in the related tree structure. We start withthe performance approximation of Che et al. and assume Zipf-distributedfrequencies of object requests that constitute associated Poisson streams.Then we derive new explicit formulae regarding the hit and miss ratios in thiscascade of LRU caches. Considering adaptive or cooperative cache policies insuch an access network with multi-homed mobile clients, the sketched resultsprovide a basis for an integrated design of efficient forwarding schemes withoptimal cache placement.