Accession Number:

ADA571380

Title:

Service-Centric Networking with SCAFFOLD

Descriptive Note:

Technical rept.

Corporate Author:

PRINCETON UNIV NJ DEPT OF COMPUTER SCIENCE

Report Date:

2010-09-01

Pagination or Media Count:

15.0

Abstract:

Online services are typically replicated on multiple servers in different datacenters, and have at best a loose association with specific end-hosts or locations. To meet the needs of these online services, we introduce SCAFFOLD--an architecture that provides flow-based anycast with possibly moving service instances. SCAFFOLD allows addresses to change as end-points move, in order to retain the scalability advantages of hierarchical addressing. Successive refinement in resolving service names limits the scope of churn to ensure scalability while in-band signaling of new addresses supports seamless communication as end-points move. We design, build, and evaluate a SCAFFOLD prototype that includes an end-host network stack built as extensions to Linux and the BSD socket API and a network infrastructure built on top of OpenFlow and NOX. We demonstrate several applications, including a cluster of web servers, partitioned memcached servers, and migrating virtual machines, running on SCAFFOLD.

Subject Categories:

  • Computer Systems Management and Standards

Distribution Statement:

APPROVED FOR PUBLIC RELEASE