George Manning Porter and Randy H. Katz

EECS Department, University of California, Berkeley

Technical Report No. UCB/EECS-2005-1

September 29, 2005

http://www2.eecs.berkeley.edu/Pubs/TechRpts/2005/EECS-2005-1.pdf

We propose a novel datapath mechanism for tracking and acting on headers in a variety of layer-7 protocols called Classification Predicates, or "cPredicates". We apply this mechanism to the emerging field of in-network storage (Storage Area Networks, or SANs), and consider a multimedia streaming service with video stored in a converged SAN that also contains non-video content. We show that cPredicates have a low, amortized overhead because they only have to examine a small subset of the packet stream in depth. In our experimental environment, only 5% or fewer packets are examined in depth, leading to less than a 10% amortized latency increase. We built a content-based prioritization system for an iSCSI-based SAN and show that it can provide better than best-effort service for video files in a converged SAN containing both video and non-video content.

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BibTeX citation:

@techreport{Porter:EECS-2005-1,
    Author= {Porter, George Manning and Katz, Randy H.},
    Title= {In-network Video Prioritization via iBox Classification Predicates},
    Year= {2005},
    Month= {Sep},
    Url= {http://www2.eecs.berkeley.edu/Pubs/TechRpts/2005/EECS-2005-1.html},
    Number= {UCB/EECS-2005-1},
    Abstract= {We propose a novel datapath mechanism for tracking and acting on headers in a variety of layer-7 protocols called Classification Predicates, or "cPredicates".  We apply this mechanism to the emerging field of in-network storage (Storage Area Networks, or SANs), and consider a multimedia streaming service with video stored in a converged SAN that also contains non-video content.  We show that cPredicates have a low, amortized overhead because they only have to examine a small subset of the packet stream in depth.  In our experimental environment, only 5% or fewer packets are examined in depth, leading to less than a 10% amortized latency increase.  We built a content-based prioritization system for an iSCSI-based SAN and show that it can provide better than best-effort service for video files in a converged SAN containing both video and non-video content.},
}

EndNote citation:

%0 Report
%A Porter, George Manning 
%A Katz, Randy H. 
%T In-network Video Prioritization via iBox Classification Predicates
%I EECS Department, University of California, Berkeley
%D 2005
%8 September 29
%@ UCB/EECS-2005-1
%U http://www2.eecs.berkeley.edu/Pubs/TechRpts/2005/EECS-2005-1.html
%F Porter:EECS-2005-1