All Questions
Tagged with openvswitch networking
25
questions
0
votes
0
answers
38
views
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 ...
0
votes
0
answers
39
views
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 ...
0
votes
0
answers
83
views
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 ...
0
votes
1
answer
69
views
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. ...
- 1
0
votes
1
answer
225
views
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 ...
0
votes
0
answers
84
views
Tracing a packet across a DNAT boundary and into OpenVSwitch
I am trying to figure out where a connection is getting dropped in a complex SDN environment that involves a combination of nftables rules and an OpenVSwitch switch with complex flow rules.
I have a ...
- 43.8k
-1
votes
1
answer
173
views
Blocking mac spoofing on libvirt guests using openflow
I have a couple of kvm vms running with libvirt and they are using openvswitch bridges. I need a mechanism to prevent mac spoofing on a guest. I tried libvirt filters no-mac-spoofing and clean-traffic ...
- 29
-2
votes
1
answer
933
views
GRE tunneling using Open vSwitch
I am trying to implement tunneling as described here with the following setup (without any success):
ho1 is a host only interface. I want to connect Nested Guest 11 and Nested Guest 21.
I have read ...
- 107
5
votes
1
answer
758
views
In virtual networking, how does a Virtual Switch differ from a linux kernel bridge?
I have seen that in virtual networking, guest VMs/containers can be connected with host and internet either by using kernel bridges(linux) or Virtual Switches.
Example - Bridges
docker uses linux ...
- 238
2
votes
1
answer
764
views
Setting up DHCP with OVN
I'm trying to set up an environment similar to the one described here in which OVN will provide DHCP service to logical networks.
I have a logical switch named `net0 with two ports:
[root@ovn0 ~]# ...
- 43.8k
3
votes
1
answer
2k
views
How to setup a GRE 3 host mesh without loops and forwards with OpenVSwitch?
I'm setting up a quite simple 3 host Proxmox (Debian) HA cluster. All VMs should be in the same subnet and when one fails over to another host inside the VM no reconfiguration should be required and ...
- 187
1
vote
1
answer
3k
views
Direct Veth Pair vs Linux Bridge
I'm trying different network configurations between LXC containers to learn something and have fun.
I've just found out that two containers can communicate with just a veth pair, so I'd like to know ...
- 143
0
votes
1
answer
307
views
how to direct all the traffic associated with a VM to a separate physical ethernet interface in Xen?
I have 3 VMs running on Xen hypervisor with Ubuntu 14 DomU.I want to configure my network in such a way that traffic to and from Vm1 goes out via eth1, vm2 via eth2 and so on.
For this i need to use ...
1
vote
0
answers
30
views
Bind OVSBridge to an already bound port
I want to enslave a NIC to OVSBridge which is already enslaved to a Bridge. Is that possible, if yes, how ?
- 111
1
vote
1
answer
3k
views
how to bring up network-interfaces and bridges in specific order at boot time
Currently, my setup is having many nodes, each having RHEL 7 installed, with each node having only one single interface. I am using ovs-bridge and a vlan-tagged interface within the host. I use vlan-...
- 152
1
vote
0
answers
693
views
Adding multiple vlan interfaces into bridge (ovs)
I am adding multiple vlan interfaces (eth3.409, eth3.410, ...) to a bridge, furthermore I also add the eth2 interface (local network) to the bridge.
eth3 is a trunk with 13 different vlans. The ...
- 11
0
votes
2
answers
813
views
Persist OVS mirroring on Xen reboot
I'm running Xen on Debian with five guest VM:s.
I've used the following command to setup port mirroring to two of the VM:s
ovs-vsctl \
-- --id=@m1 create mirror name=detector \
-- add bridge ...
- 101
0
votes
1
answer
3k
views
RTNETLINK answers: Invalid argument while specifying packet loss by tc command
I am trying to specify packet loss by tc command on interface (port) 1 of switch part of network I have created using mininet :
sudo tc qdisc change dev s1-eth1 root netem loss 0.1%
but gettring ...
- 101
2
votes
1
answer
14k
views
Proxmox with an Openvswitch bridge
All,
I'm trying create a way for me to be able to use the local network within my Proxmox infrastructure.
Currently, everything is running off of NAT from wlan0 and all internal machines have the ...
- 642
0
votes
1
answer
2k
views
Equivalent to TYPE=“OVSPort” DEVICETYPE=“ovs” OVS_BRIDGE=br-ex in Ubuntu 14.04?
Is there an equivalent to TYPE="OVSPort" DEVICETYPE="ovs" OVS_BRIDGE=br-ex in Ubuntu 14.04?
The system is OpenStack Icehouse with 3 nodes (controller, network, compute1) each on a VirtualBox Ubuntu ...
0
votes
1
answer
407
views
Can we provide an stack of IP's to the Open Vswitch to pick the IP?
I have started learning virtualization using KVM hypervisor and trying to set-up virtual cluster on the host machine.However from the tutorials on the internet states that the VM connected to OVS ...
- 121
2
votes
2
answers
4k
views
openvswitch with multiple vlans
I'm having an issue wrapping my head around a setup. We currently use vmware+vsphere and switching to kvm.
So we want the similar type setup using openvswitch. So our setup will be like
kvm host ip:...
- 22.4k
1
vote
1
answer
10k
views
Deleting port on one openvswitch bridge causes change in MAC address on another bridge
I am trying to set an explicit MAC address on an openvswitch bridge
named br-ex. I am running Fedora 20 and using the native
ifdown/ifup commands to configure the bridge (details of my
network ...
- 43.8k
4
votes
1
answer
622
views
Automating Configuration of VMware's vSwitch (OpenStack/libvirt/Nova)
There's a lot of talk now about VMware integrating with OpenStack now.
I've noticed that Nova network service is working with VMware's standard and vDS.
Deploying a full OpenStack instance is not ...
0
votes
1
answer
2k
views
openvswitch: connecting two virtual private networks on two different machines with gre/ipsec
Here is the setup: We have a hardware (server) that presents a service to the customer (or "outside world", if you so will). Internally, the services and functions are distributed over several virtual ...
- 497