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2
votes
1answer
56 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
18 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
72 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
58 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
40 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
36 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
28 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
62 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
0answers
31 views

openvswitch/libvirt: create an overlay virtual machine network [closed]

I have an openvswitch switch controlled by a controller. I want to have a group of virtual machines which can be on different nodes but having the illusion of being on the same network. Throught ...
0
votes
0answers
13 views

Need to choose between iris and floodlight as openflow controller [closed]

I need a controller who can easily be attached to an openvswitch switch and with well documented apis, so I can easily create/destroy flows using java language. Who is the most mature and reliable ...
-1
votes
0answers
24 views

ifconfig: create and connect a simple lan segment in an openvswitch environment [closed]

I am working with openflow and I have some virtual machines attached to the interface br0 (10.10.10.x/24). Br0 is not attached to any phisical interface, it is just a segment. Well, the virtual ...
1
vote
0answers
51 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
15 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
44 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
61 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
44 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
124 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
16 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
17 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
60 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 ...
0
votes
0answers
151 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
82 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
204 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
152 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
0answers
185 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 ...
0
votes
0answers
149 views

Fast path and Slow path in OpenFlow and Open vSwitch: which object are they related to (OVS or OF)?

I read some materials on Open vSwitch (OVS) which is implemented with OpenFlow (OF). One thing I cannot understand is the meaning of Fast path and Slow path? Which object are they related to (OVS or ...
2
votes
1answer
421 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
199 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
0answers
64 views

How to rebuild the kernel module after making changes to the module for the same kernel level

I installed openvswitch kernel module using apt-get and seems like apt-get build and install that package using dkms. Apt-get installs sources in /usr/src/openvswitch-version/ directory. I need to do ...
0
votes
1answer
316 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
108 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
131 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
134 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 ...
3
votes
0answers
963 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 ...