Service-Centric Networking with SCAFFOLD
|Authors:||Freedman, Michael J., Arye, Matvey, Gopalan, Prem, Ko, Steven Y., Nordstrom, Erik, Rexford, Jennifer, Shue, David|
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.