No More Déjà Vu-Eliminating Redundancy With CacheCast: Feasibility and Performance Gains

Due to the lack of multicast services in the Internet, applications based on single-source, multiple-destination transfers such as video conferencing, IP radio, and IPTV must use unicast. This type of traffic exhibits high redundancy with temporal clustering of duplicated packets. The redundancy ori...

Full description

Saved in:
Bibliographic Details
Published in:IEEE/ACM transactions on networking 2013-12, Vol.21 (6), p.1736-1749
Main Authors: Srebrny, Piotr H., Plagemann, Thomas, Goebel, Vera, Mauthe, Andreas
Format: Article
Language:English
Subjects:
Cache storage
computer networks
Indexes
IP networks
Kernel
multicast communication
Payloads
Redundancy
Servers
Unicast
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Due to the lack of multicast services in the Internet, applications based on single-source, multiple-destination transfers such as video conferencing, IP radio, and IPTV must use unicast. This type of traffic exhibits high redundancy with temporal clustering of duplicated packets. The redundancy originates from multiple transfers of the same data chunk over the same link. We propose CacheCast, a link-layer caching mechanism that eliminates the redundant data transmissions using small caches on links. CacheCast's underlying principles are simplicity and reliability. It is a fully distributed and incrementally deployable architecture. It consists of small caches on links that act independently and a server support that simplifies the link cache operation. Our analysis indicates that transfers of the same data to multiple destinations with CacheCast can achieve near-multicast efficiency in terms of consumed link bandwidth. The implementation of CacheCast proves its feasibility, efficiency, and the improvements of the server.
ISSN:1063-6692
1558-2566
DOI:10.1109/TNET.2012.2236104