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-2
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0answers
19 views

Can NAT be used for a br-ex OpenVSwitch interface (VirtualBox)?

Can "NAT" be used for an interface (eth1) which has a br-ex attached to it using OpenVSwitch or does it have to be "Bridged Adapter"? (VirtualBox) /etc/network/interfaces on Ubuntu 14.04 auto eth1 ...
0
votes
0answers
21 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
1answer
30 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 ...
1
vote
0answers
53 views

How Open-VSwitch bridge assigns IP addresses to guest when used on KVM hypervisor?

I have setup ovs switch on ubuntu and configured network xml and guest VM xml files respectively(Set-up for KVM hypervisor). Created new network for openVswitch by creating and defining new vlans.xml ...
0
votes
1answer
29 views

Hosts cannot ping in two name spaces using Open Vswitch

I have two name spaces red and blue. Red is connected to host1, and blue is connected to host2, but these two hosts cannot ping each other. Here is the commands that I put: ip link add host1 type ...
0
votes
0answers
100 views

openstack/ovs failed to add br-ex as port: File exists

I am having trouble setting up openstack ice house on a single machine. In the openvswitch-agent.log I get: Warning neutron.agent.linux.ovs_lib [-] Found failed openvswitch port: [u'm2', [u'map', ...
0
votes
0answers
107 views

Opening a port range using Open VSwitch

I am locking down a VM on xenserver to allow only port 3389 and the ports required for domain controller authentication on windows. I am trying to do this using Open VSwitch. Locking down and allowing ...
0
votes
1answer
118 views

How do I block all access to machine except port 3389 using Open vSwitch

I can allow access to the machine and block everything else using: ovs-ofctl add-flow xenbr0 "dl_src={mac-address} priority=39000 dl_type=0x0800 nw_dst={ip-address} idle_timeout=65000 action=normal" ...
0
votes
0answers
227 views

Open vSwitch double VLAN tagging is ignored

I'm trying to add a flow to a KVM machine using Open vSwitch 1.10.2 for it's networking, which double tag all traffic comming from one of the virtual machine's ports. I'm using the following command ...
0
votes
0answers
234 views

Packets are not routed by iptables, how to debug

I'm using OpenStack and OVS. This is my case: From a remote host, I ping VM with IP A. Local gateway received the echo request, then send a packet with IP A and MAC address A' (based on a fixed ...
0
votes
1answer
81 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 ...
0
votes
1answer
1k 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 ...
0
votes
0answers
441 views

Ubuntu 14.04 GRE tunnnel Open vSwitch 2.01

I installed the 2.0.1 openswitch version included with the Ubuntu 14.04 distribution. I set up a simple gee tunnel and containers are pinging each other but any data flux is blocked. This is the ...
2
votes
1answer
278 views

Persistent Network Configuration using KVM and libvirt

Our environment will have a KVM host setup dynamically using kickstart (easy enough). The hard part is dealing with network configuration and keeping VLAN configuration (and possibly bridge/host ...
0
votes
0answers
84 views

What are pro and cons of gre and vlanx?

I need to connect two openvswitches in order to make a vlan. So, I would simply create trunk ports for certain vlan ids...ok. In order to connect two openvswitch, now, these ports can be either gre ...
2
votes
1answer
808 views

Openstack Neutron stabilty problems

I have a fairly simple Openstack setup for a PoC. 2 nodes, both running Nova, and everything else on node 1. It is running CentOS 6 and was set up using RDO. Importantly I am using Neutron for the ...
3
votes
0answers
238 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
0answers
136 views

I can't ping floatting ip

I ahve configured openstack Havana on ubutu server 12.04. I have a three server a controller, a compute and a network node. I have used neutron for networking with openvswitch. I can deply and run an ...
0
votes
1answer
235 views

Mininet additional veth pair between host and server

For those who don’t know - Mininet is a tool that allows for the automated creation of multiple OVS switches, chroot linux ‘containers’ as hosts and links them all together to prototype OVS powered ...
0
votes
0answers
159 views

Can't bring link state on TUN/TAP interfaces up

Trying to build a tap interface to add as a virtual interface to OVS. I've tried using both Utilities and the ip tuntap command which create the interface- I can't seem to get the interface "up". ...
-2
votes
1answer
118 views

Is there a way to emulate a DHCP server (overlay network) [closed]

I have created an overlay Level 2 network using VLAN tags with Open vSwitch. I want a Level 3 one so I need to give each VM a consistent IP address. I'd like every host on this VLAN to get an IP ...
0
votes
1answer
499 views

How to make my linux vm attach to an openvswitch bridge?

I am following this tutorial: http://networkstatic.net/wp-content/uploads/2012/04/openvswitch.openflow.gre_.tutorial1.pdf In brief: br0 is connected to the actual net, br1 is an isolated bridge to ...
0
votes
0answers
40 views

Floodlight :too many hosts displayed

I have 2 openvswitch switches to whom are attached 2 devices per switch leading to 4 overall devices. However, when I start floodlight web ui and go to "topology" section it displays me a lot of ...
0
votes
1answer
564 views

Adding eth0 to openvswitch bridge makes internet stop working

Adding my eth0 interface to openvswitch bridge with: ovs-vsctl add-port br0 eth0 makes me unable to accesso to the internet both on the host and , obviously, on the guest. How to solve this ...
0
votes
0answers
136 views

Ubuntu 13.10: impossible to find openvswitch-brcompat

Like title says...and if I look into kernel modules I just find openvswitch.ko. I am on ubuntu 13.10 and I installed openvswitch-controller openvswitch-switch openvswitch-datapath-source ...
0
votes
1answer
109 views

<virtualport type='openvswitch'/> is NOT recognized

In order to make my vm use the openvswitch interface I have to add the following lines to a vm xml config file: <source bridge='ovsbr'/> <virtualport type='openvswitch'/> I edit the ...
0
votes
0answers
310 views

XenServer open vSwitch performance downgrade

I'm trying to capture part of an inter hypervisor traffic between 2 virtual machines running over XenServer 6.2. I want to mirror some TCP sessions to a 3rd virtual machine with minimum affect to the ...
0
votes
0answers
43 views

openvswitch: what's the difference between exit and drop?

I'm noticing an interesting phenomena that I can't explain. I have a flow in openvswitch that looks like that: ovs-ofctl add-flow switch0 ...
1
vote
0answers
53 views

open flow controller + openvswitch. how?

I have a computer that's running openvswitch and I want to create a backup. I'm thinking about moving the controller away from the server on which openvswitch runs, and create multiple openvswitch ...
0
votes
0answers
171 views

openvswitch,push_vlan on the same frame

I have frames coming in from eth0 tagged with a vlan id. I'm trying to load another vlan tag on the same frame so I'll have two vlan headers, then output the frame to eth1. I read ovs-ofctl's manpage ...
1
vote
0answers
356 views

access tap interface in network namespace across machines

I want to be able to access services running on a TAP interface within a namespace from outside the machine where it is running. I have setup that looks like this - VM1/Machine1 +eth0 : Public ...
0
votes
1answer
104 views

Is Open vSwitch necessary for my setup?

I've been considering moving my VMware-based dedicated server to Linux using KVM/QEMU. The only major hurdle remaining is networking. My current setup is: NIC <---> Public vSwitch <---> ...
0
votes
1answer
417 views

Does Open vSwitch put attached interfaces into promiscuous mode?

When I use Linux bridging to bridge a virtual machine to a physical NIC, I have to explicitly set the NIC to promiscuous mode so that ethernet frames that were destined for the VM would make it to the ...
0
votes
1answer
265 views

No traffic to Xen vif attached to Openvswitch

I'm trying to get my guest VMs to use an openvswitch on Ubuntu 12.04 with 3.8.0-26-generic. I've compiled the most recent stable build Xen 4.3.0 but can only get my guest VMs working with a standard ...
3
votes
1answer
356 views

How GRE traffic finds way after arrive GRE remote end points (in open vswitch)?

I'm quite new to both network and open vswitch, I'm not sure whether this question is more relevant to open vswitch(ovs) or gre. belows are ovs settint commands. There are two hosts. Each host has ...
2
votes
1answer
972 views

OpenVSwitch between namespaces

I'm trying to configure a bridge between two TAP interfaces each created inside their own network namespace, on Linux. I'm using OpenVSwitch as software bridge. These are the steps that I believe ...
2
votes
1answer
393 views

GRE Mesh to GRE Star in open virtual switch

i have 3 kvm hosts running open vswitch with many virtual machines. These vms are on two separate tenants and GRE tunnel carries private traffic between these 3 hosts. But is there a better way to ...
0
votes
1answer
648 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 ...
0
votes
1answer
262 views

./pox.py log.level --DEBUG forwarding.l2_learning not working as expected

I have installed openvswitch on my PC with runs Ubuntu 12.04.I also have virtual box running on my PC with 3 virtual machines (Ubuntu 12.04) running on them. are named vm-1 vm-2 vm-3 I have ...
0
votes
1answer
234 views

gateway configuration in kvm guest while live migration

I configured the bridge which are connected to guests to communicate with outside. And In the guest, i configure gateway to indicate the bridge IP. (currently achieve this with DHCP) eth0 <--> ...
1
vote
1answer
183 views

Openvswitch Installation Issue

I am trying to install openvswitch on my ubuntu 12.04 Machine for KVM. But it is showing "Module has probably not been built for this kernel" tried "module-assistant auto-install ...
4
votes
0answers
2k views

connect Open vSwitch switch to real network : iptables masquerade

I'm using Open vSwitch to create a switched network between virtualBox guest machines, and i want that the host OS (Ubuntu 12.04) join this network and to configure it as the gateway of this virtual ...