Abstract
We revisit the problem of scaling software routers, motivated by recent advances in server technology that enable highspeed parallel processing a feature router workloads appear ideally suited to exploit. We propose a software router architecture that parallelizes router functionality both across multiple servers and across multiple cores within a single server. By carefully exploiting parallelism at every opportunity, we demonstrate a 40Gbps parallel router prototype; this router capacity can be linearly scaled through the use of additional servers. Our prototype router is fully programmable using the familiar Click/Linux environment and is built entirely from off-the-shelf, general-purpose server hardware. We also describe some of the lessons learned while supporting field deployments of Routebricks-based software routers.
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