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Questions tagged [openvswitch]

Open vSwitch is an open-source software switch designed to be used as a virtual switch.

Open vSwitch is a production quality open source software switch designed to be used as a vswitch in virtualized server environments. A vswitch forwards traffic between different VMs on the same physical host and also forwards traffic between VMs and the physical network. Open vSwitch supports standard management interfaces (e.g. sFlow, NetFlow, IPFIX, RSPAN, CLI), and is open to programmatic extension and control using OpenFlow and the OVSDB management protocol.

Resources:

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Open vSwitch database connection failure after rebooting

Each time after installing Open vSwitch successfully and rebooting, I get the following error. ovs-vsctl: unix:/usr/local/var/run/openvswitch/db.sock: database connection failed (no such file or directory). Does anyone know why the db.sock file goes…
Srinidhi Srinivasaraghavan
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Minimal devstack with nova and floating ips

I'm trying to set up a minimal devstack that can launch nova instances, some which will have public addresses, and some which will need to open connections to the public network. I'd like to be able to assign floating ips to the instances, and have…
Cirdec
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How to improve or debug docker overlay network resiliency?

Background We maintain a "cluster" of Ubuntu hosts which run our production applications. The hosts run a wide variety of docker containers such as consul for container monitoring and prometheus service discovery elasticsearch cluster with multiple…
dev-rowbot
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What if there are multiple forwarding rules for the same flow in the Openflow switch?

I am trying to use the POX controller to control the path of flows. I know that the Open vSwitch will choose the forwarding rules that have the highest priority. But what will happen if I insert a new forwarding rule for the existing flow with the…
lzhou008
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Kubernetes overlay network comparison

I was wondering if someone could give me a brief overview of the differences/ advantages between all of the different Kubernetes network overlays. The getting started guide (http://kubernetes.io/docs/getting-started-guides/scratch/#network) mentions…
David Newswanger
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LXC with Open vSwitch

I want to try OVS (software Linux switch) http://openvswitch.org/ with my LXC container with Ubuntu as host and guest. So I have installed it: # apt-get install openvswitch-switch Configured according this doc…
ipeacocks
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Remove a port to the external bridge with openvswitch

I was setting up a openstack configuration using this document: http://docs.openstack.org/juno/install-guide/install/apt/openstack-install-guide-apt-juno.pdf and got to page 72 where it says to do this: # ovs-vsctl add-port br-ex INTERFACE_NAME but…
M364M4N cro
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ovs tap "internal" vs tuntap tap

I'm building an SDN testbed consists of an OpenvSwitch switch installed on Linux Ubuntu 18.04 and 5 VMs (Linux Ubuntu 16.04 server) running on VirtualBox. The OVS is managed by OpenDaylight Boron. When I use ip tuntap add mode tap tapN to create…
Ahmed Sallam
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The Difference between ovs-vsctl and ovs-dpctl

If I am setting up an switch device to be controlled via OpenFlow, what are the conditions to use ovs-dpctl versus ovs-vsctl? The man page for ovs-dpctl says to use ovs-vsctl if ovs-vswitchd is used. So what circumstances would you uses…
AlanObject
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Mininet - Make a host act as a switch

I need some help with Mininet. I know it may seem odd to try to do this, but trust me it is necessary given my circumstances. I need to start mininet with a host, and then, "manually", set that host up as an OpenFlow Switch. What I have so far is…
Santiago Vidal
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Openstack, neutron, Can't ping external network

I have followed the Icehouse doc to install a 3 node environment my openstack nodes are builded as virtual machines using libvirt in…
jazzsir
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Unable to connect testpmd to OVS+DPDK

Summary I'm trying to use testpmd as a sink of traffic from a physical NIC, through OVS with DPDK. When I run testpmd, it fails. The error message is very brief, so I have no idea what's wrong. How can I get testpmd to connect to a virtual port in…
falsePockets
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problem with testpmd on dpdk and ovs in ubuntu 18.04

i have a X520-SR2 10G Network Card, i gonna use that to create 2 virtual interfaces with OpenvSwitch that compiled with dpdk (installed from repository of ubuntu 18.04) and test this virtual interfaces with testpmd, i do following jobs : Create…
r0_ot
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Mininet OVS-Controller can 't be loaded and run

When ever I try to login SSH to my mininet VM from Host terminal it shows Permission denied error and even from within VM terminal where the Mininet is hosted using command: sudo mn --topo single,3 --mac --switch ovsk --controller remote` it shows…
Milson
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Cannot add a DPDK-bound interface to the OVS bridge

I am unsucessfully trying to add a PCI interface (I219-V) to the OVS bridge using ovs-vsctl: root@pc:/home/me# ovs-vsctl add-port br0 tryport -- set Interface tryport type=dpdk options:dpdk-devargs=0000:00:1f.6 ovs-vsctl: Error detected while…
lanzi
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