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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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Mininet error in Ubuntu 16.04 while setting bandwidth

sudo mn --link tc,bw=10,delay=10m gives the following $ sudo mn --link tc,bw=10 *** Creating network *** Adding controller *** Adding hosts: h1 h2 *** Adding switches: s1 *** Adding links: (10.00Mbit) *** Error: RTNETLINK answers: No such file or…
sinhayash
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What does grep classifier in Open vSwitch mean?

I use ovs-ofctl dump-tables s_id when I want to show the flow table stats. Sometimes I notice 'grep classifier' is used as (ovs-ofctl dump-tables s_id | grep classifier). What does grep classifier mean? Thank you.
Pedro Kali
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Add new experimenter match field in OVS source code

I would like to add new match field of type OXM_experimenter class OVS source code, could anyone share proper document or steps to do it. It needs changes in many of the files and functions and understanding OVS source is somewhat difficult. If any…
KNT
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Does OpenVswitch accept duplicate OpenFlow rules with different priorities?

If you set up OVS to run with an OF controller and you try to add two flow rules that are identical except for the priority, is that allowed? Is there anything in the OpenFlow specification that speaks to this? (I did a quick scan of the spec…
AlanObject
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Intercepting packets at openvswitch

I'd like to intercept packets arriving at the switch from the controller (e.g. floodlight), and then do some processing for these packets. How can I go about that? Is there a good place I should start at? Thanks
ObjProg
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Openvswitch create queue can't reach bit rate limitation

all: I'm new to SDN and also new to stackoverflow. Here is my topology: When I setting the queue for mytopo, I notice that when the maximum bit lower than 300000, the iperf value become strange. Cant't reach the maximum bit rate setting. let…
楊亮魯
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Can openvswitch save any data by itself?

I know each ovs has flow tables and these tables set or modify by the controller. My question is: Can an ovs save any data without interference of the controller? In the other words, can an ovs create a table in itself and change it with each new…
Mehdi Saman Booy
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OpenFlow - Sending Port statistics as an Action

OpenFlow allows a controller to request port statistics from the a switch using a message, and the controller in return receives a reply with the statistics. For example, in Ryu we can use ryu.ofproto.ofproto_v1_3_parser.OFPPortStatsRequest for this…
Piyush Jain
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What is the difference between these two OpenvSwitch commands?

What is the difference between these two OpenvSwitch commands? ovs-vsctl add-br br0 -- set bridge br0 datapath_type=netdev & ovs-vsctl add-br br0 .
Ketul Patani
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Want to use the `Vlan` feature of `OpenVSwitch` with `LXD/LXC`

I want to use the Vlan feature of OpenVSwitch. This is what I have done so far; hussain@hussain:~$ lxc list +----------+---------+------+------+------------+-----------+ | NAME | STATE | IPV4 | IPV6 | TYPE | SNAPSHOTS…
Nagri
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OVS Bridge Connectivity using GRE Tunneling

Okay so I'm trying to connect two OVS Bridges in separate hosts using GRE Tunneling. A VM is connected to each of the two OVS Bridges. The problem is that I don't want to add eth0 to the bridges and don't want to give an IP Address to the bridges.…
S. Salman
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How to set the action for a flow in ODL beryllium YANG UI?

I try to add flows to the switches via DLUX YangUI (using Beryllium). So, I go to the API opendaylight-iventory rev.2013-08-19 -> config -> nodes -> node ->table -> flow and start to add a flow like this (Preview):…
Mohanraj V
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Difference between openvswitch_agent and ml2_agent, (Mitaka)

I'm new in the OpenStack world. I've a doubt: I'm trying to install OpenStack Mitaka (controller, network, compute), but I don't know which file I have to configure in /neutron/plugins/ml2/ between openvswitch_agent.ini and ml2_agent.ini. How can I…
Alessandro Consalvi
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Mininet 2.2.1 not generating any packetIn messages for openVswitch 2.5.0

Recently I have upgraded openVswitch from 2.1.2 to 2.5.0, but there are no trafic generation(packetIn) after this upgrade with mininet 2.2.1. It was working for mininet2.2.1 and openVswitch2.0.2 earlier. Using below command: sudo mn --topo linear…
Manjunath
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Connecting VMs Using GRE Tunnels - Openvswitch

Hello everyone i'm really new in networking, so i i'm a little bit lost please i hope anyone can help me... I have two physical nodes with the same configuration in the interface: # The primary network interface #auto eth0 #iface eth0 inet…
ivan andrade
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