The Design and Implementation of Open vSwitch
@inproceedings{Pfaff2015TheDA,
title={The Design and Implementation of Open vSwitch},
author={Ben Pfaff and Justin Pettit and Teemu Koponen and Ethan J. Jackson and Andy Zhou and Jarno Rajahalme and Jesse Gross and Alex Wang and Joe Stringer and Pravin Shelar and Keith Amidon and Mart{\'i}n Casado},
booktitle={NSDI},
year={2015}
}We describe the design and implementation of Open vSwitch, a multi-layer, open source virtual switch for all major hypervisor platforms. [] Key Method We detail the advanced flow classification and caching techniques that Open vSwitch uses to optimize its operations and conserve hypervisor resources. We evaluate Open vSwitch performance, drawing from our deployment experiences over the past seven years of using and improving Open vSwitch.
880 Citations
Throughput and Latency of Virtual Switching with Open vSwitch: A Quantitative Analysis
- Computer ScienceJournal of Network and Systems Management
- 2017
Extensive black-box tests are presented to quantify the throughput and latency of software switches with emphasis on the market leader, Open vSwitch.
Optimizing Open vSwitch to Support Millions of Flows
- Computer ScienceGLOBECOM 2017 - 2017 IEEE Global Communications Conference
- 2017
Two new optimizations for OvS are proposed to completely remove the sequential search overhead of the tuple space search layer of OvS, and a dynamic cache insertion optimization for the EMC to improve EMC effectiveness.
SoftFlow: A Middlebox Architecture for Open vSwitch
- Computer ScienceUSENIX Annual Technical Conference
- 2016
This paper presents SoftFlow, an extension of Open vSwitch that seamlessly integrates middlebox functionality while maintaining the familiar OpenFlow forwarding model and performing significantly better than alternative techniques for middlebox integration.
Characterising the Limits of the OpenFlow Slow-Path
- Computer Science2018 IEEE Conference on Network Function Virtualization and Software Defined Networks (NFV-SDN)
- 2018
The slow-path performance of these hardware switches is easily overloaded and is insufficient for modern network control architectures.
P4rt-OVS: Programming Protocol-Independent, Runtime Extensions for Open vSwitch with P4
- Computer Science2020 IFIP Networking Conference (Networking)
- 2020
The design results in a hybrid approach that provides P4 programmability without sacrificing the well-known features of OVS, and the performance evaluation shows that P4rt-OVS does not introduce significant processing overhead, yet enables runtime protocol extensions and stateful packet processing.
An empirical model of packet processing delay of the Open vSwitch
- Computer Science2017 IEEE 25th International Conference on Network Protocols (ICNP)
- 2017
This paper presents an empirical model of the packet processing delay of a widely used OpenFlow virtual switch, the Open vSwitch, and captures the non-network processing delays, which could be used in enhancing the network modeling and simulation.
Oko: Extending Open vSwitch with Stateful Filters
- Computer ScienceSOSR
- 2018
Oo is presented, an extension of Open vSwitch that enables runtime integration of stateful filtering and monitoring functionalities based on Berkeley Packet Filter programs into the OpenFlow pipeline, and is compared to existing approaches with comparable isolation properties and measures a near 2x improvement of performance.
VirtP4: An Architecture for P4 Virtualization
- Computer Science2019 IEEE International Parallel and Distributed Processing Symposium Workshops (IPDPSW)
- 2019
VirtP4 provides parallel execution of true independent virtual switch instances with assistance of traffic control and packet routing, an architecture for the virtualization of P4-based programmable forwarding planes.
revisiting the open vSwitch dataplane ten years later
- Computer ScienceSIGCOMM
- 2021
This paper shares the experience in supporting and running the Open vSwitch (OVS) software switch, as part of the NSX product for enterprise data center virtualization used by thousands of VMware customers, and endorse a third approach, based on a new Linux socket type called AF\_XDP, which solves the maintainability problem in a compatible, performant way.
Predictable Bandwidth Slicing with Open vSwitch
- Computer Science2021 IEEE Global Communications Conference (GLOBECOM)
- 2021
It is demonstrated that latency and predictability are dependent on the implementation of the bandwidth slicing mechanism and that the packet schedulers used in OVS Kernel-Path and OVS-DPDK focus on different switching performance aspects.
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