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Questions tagged [openvswitch]

106 questions
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How to drop arp requests trying to resolve a particular IP address at a logical switch port?

I am using l2gateway port to attach a physical L2 segment to a logical network. But both the logical network and the physical segment has one common IP, say 10.0.0.1. I want to prevent the traffic from physical segment to logical network for this IP…
Amogh M K
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When installing neutron ovn from openstack-ansible, ovs will be installed automatically if install_method is set to distro

We are trying to install openstack through openstack-ansible and configure neutron with ovn. The installation version was yoga/zed, and ovn was configured by referring to the link below. yoga :…
Aaron
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Isolate traffic between vswitches but allow l2 traffic from external network

I've two OVS bridges which they are connected to the 3rd v-switch using patch(es). Bridge br1 Port br1 Interface br1 type: internal Port br1-ext Interface br1-ext type:…
Vahid Alimohamadi
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Connecting 2 Virtualbox VMs to Open vSwitch running on another Virtualbox VM

I have 3 Ubuntu 22.04 VMs created using Virtualbox. My host machine is Windows 10. One of them is running 5G core emulator, and the other one is running UEransim. I was able to connect UE to 5G network, but I need to have an additional VM in-between…
Michał Ryba
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Connecting different interfaces with different IP ranges to Open vSwith OVS

I have a setup with 4 VMs. There are two servers: VM1, VM2, one router: VM3, and one client: VM4. VM3 is connected directly to all other VMs and routes traffic between them. VM3 has 3 different Interfaces. Let's call them i1,i2,i3. Each of them is…
Goyban
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Nothing but DHCP works after testing SR-IOV on Mellanox ConnectX-4 Lx

I was following the Proxmox guide for enabling PCIe passthrough and SR-IOV for my NIC, since I am running Vyos in a VM as a router. However, after undoing all the changes the NIC is not working anymore. The only thing that seems to be working is…
VMelnalksnis
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OVS switch and Tap interface- Connecting two vm using tap interface-ubuntu

I want to connect 2 VM together using tap interface on Ubuntu. VM2 will connect to VM1 by a tap interface on VM1. I will use OVS switch to forward traffic from VM1 to VM2. Scenario: Router from ISP provide IP subnet dhcp:…
dyvesh mahadea
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Ingress traffic shaping with OVS port

I have a ovs topology like this: h1 | | [SW 1] / \ / \ [SW 2] [SW 3] \ / \ / [SW 4] | | h2 Traffic is sent from h1 to h2. I want do this thing: in normal…
Hai Pham
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Traffic shaping for multipath routing in OVS

I'm working with OVS and tried multipath routing using group tables like in this link: https://github.com/PSIB0T/Multipath-Routing. It splits traffic to buckets with output is different ports. At first, I thought the traffic would be split into…
Hai Pham
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No layer 2 traffic in an Open vSwitch bridge

I see no traffic in layer 2 and above in an OVS bridge, but I do see layer 1 traffic. I have the following setup: I have created a Linux VirtualBox VM with three adapters: NAT with port forwarding the internal SSH (22) port to external port, so that…
falhumai96
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Weave net empty flows for OpenvSwitch

I have 2 containers c1/c2 on 2 separate hosts and I am running Weave Net docker plugin with multicast and fastdp enabled. Both containers can communicate fine on the underlay network both in unicast and multicast packets. But weave report show…
FrancoisD
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Open VSwitch - Connect two virtual networks through two physical networks

I managed to setup the following network configuration : HOST1 and HOST2 are two physical machines running Debian OS. They have both two network cards (eth0 and eth1), each of them connected to two physically separated network and with different…
Fab
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KVM guest low network speed

I have a KVM guest VM running RHEL 8.7 (12vCPU, 24GB RAM) and a hypervisor with 10Gb NICs. I'm getting weird results when using iperf3 on my guest machine as a client and a TrueNAS server as a server. See the image: iperf3 low network speed. I'm not…
chetzz
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GTP-U configuration in OVS

I'm trying to configure a virtual GTP-U interface in OVS, however when I try the below command (from https://docs.openvswitch.org/en/latest/faq/configuration/): Q: Does Open vSwitch support GTP-U? A: Yes. Starting with version 2.13, the Open…
A. Trevelyan
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simple openvswitch forward demo not work

What are the details of your problem? Hi, that is my first time try ovs. i am using Arch Linux, and installed openvswitch. use sudo ip link add v1 type dummy && sudo ip addr add 10.0.0.1/24 dev v1 && sudo ip link set v1 up created v1, v2…
test1696150
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