[talks] Muhammad Shahbaz will present his generals exam on Wednesday, May 11, 2016 at 2:30pm in CS 302
ngotsis at CS.Princeton.EDU
Mon May 2 13:33:19 EDT 2016
Muhammad Shahbaz will present his generals exam on Wednesday, May 11, 2016 at 2:30pm in CS 302
The members of his committee are Nick Feamster (adviser), Jennifer Rexford, and Kyle Jamieson.
*Title:* PISCES: A Programmable, Protocol-Independent Software Switch
Abstract: Virtualized data centers use software hypervisor switches to steer packets to and from virtual machines (VMs). The switch frequently needs upgrading and customization—to support new protocol headers or encapsulations for tunneling or overlays, to improve measurement and debugging features, and even to add middlebox-like functions. Software switches are typically based on a large body of code, including kernel code. Changing the switch is a formidable undertaking requiring domain mastery of network protocol design and developing, testing, and maintaining a large, complex codebase.
In this talk, we will argue that changing how a software switch forwards packets should not require intimate knowledge of its implementation. Instead, it should be possible to specify how packets are processed and forwarded in a high-level domain-specific language (DSL) such as P4, then compiled down to run on the underlying software switch. I will present PISCES, a software switch that is not hard-wired to specific protocols, which eases adding new features. We will also show how the compiler can analyze the high-level specification to optimize forwarding performance. Our evaluation shows that PISCES performs comparably to Open vSwitch, a hardwired hypervisor switch, and that PISCES programs are about 40 times shorter than equivalent Open vSwitch programs.
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More information about the talks