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.
Title
In-network Video Prioritization via iBox Classification Predicates
Published
2005-10-06
Full Collection Name
Electrical Engineering & Computer Sciences Technical Reports
Other Identifiers
EECS-2005-1
Type
Text
Extent
13 p
Archive
The Engineering Library
Usage Statement
Researchers may make free and open use of the UC Berkeley Library’s digitized public domain materials. However, some materials in our online collections may be protected by U.S. copyright law (Title 17, U.S.C.). Use or reproduction of materials protected by copyright beyond that allowed by fair use (Title 17, U.S.C. § 107) requires permission from the copyright owners. The use or reproduction of some materials may also be restricted by terms of University of California gift or purchase agreements, privacy and publicity rights, or trademark law. Responsibility for determining rights status and permissibility of any use or reproduction rests exclusively with the researcher. To learn more or make inquiries, please see our permissions policies (https://www.lib.berkeley.edu/about/permissions-policies).
