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Questions tagged [openflow]

Openflow is a switch specification that enables the switch to communicate with the remote controller through an openflow protocol and allow it to change its configuration.

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VLAN based rate limiting using tc

I have been trying to perform VLAN based rate limiting on an academic project I am working on. The project uses Openflow (with Beacon controller) and the network is emulated using Mininet. The network is made up of OpenVSwitches. For my project I…
user1449265
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How to parse OpenFlow packets using tcpdump capture file programmatically

I am working with OpenFlow packets and am analyzing the network via tcpdump. Currently, I use the WireShark GUI to parse the generated capture file and it does serve my need. However, I was wondering whether WireShark has an API so the same can be…
spiritusozeans
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What flow rules to add to the table for L2 Forwarding in open vSwitch?

I am performing an experiment on 2 Xeon based servers. Both the servers have two dual port NIC, total 4 NICs. OVS is running on one server and DPDK pktgen on the other server. I tried to add flow rules to the table to run OVS as L2 forwarding…
A-B
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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 do GRE tunneling,because currently these GRE tunnels…
Kevin Parker
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Rate limiting using openflow

I'm trying to perform rate limiting using Queues on Openflow. I've been using 3 files. One to create the topology (top.py), one to create the policies (pol.py) and one to create queues (queue.py). The topology consists of 3 nodes (h1, h2, h3) and 3…
monty76
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network switch features recommended for use with open vswitch

I am looking to setup openvswitch to use with a handful (<10) servers and need a couple of ethernet switches to implement this. Are there any features that are recommended to be present in the physical switches that would enable the overlay network…
Matt--12345
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How to set network configuration for openflow on openwrt?

I made a custom build Openwrt (barrier breaker) with Openflow 1.3 and I could connect it to ryo simple_switch_13 controller in outofband mode. Ehternet port number 3 and 4 are set as openflow ports but when I connect a device to these ports and set…
Ardalan Pouyabahar
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Command to check openflow version

I Installed mininet in Ubuntu system, By default openflow also installing with mininet. But how can I know the installed version of openflow?
Arun
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Looking for OpenFlow capable Converged Switch

I'm looking for a switch with the following features: has GBit and 10GBit ethernet interfaces has FibreChannel Uplink ports (4 & 8 Gbit) can use OpenFlow to regulate network traffic. Does anyone know such a device?
CHfish
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OVS and IPFIX :: Why is my bridge only exporting bridge-to-collector flows?

I’m new to OVS and trying to get IPFIX working on my OVS bridge. I’m building off the great information in this previous post: https://networkengineering.stackexchange.com/questions/5848/how-to-get-ipfix-working-with-openvswitch The good news is I…
Pete
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Automatic OpenFlow Timeout Messaging

This question might come off as slightly hypothetical, but I couldn't figure how else to ask it. The OpenFlow protocol has a feature which lets its rules get deleted when no traffic matches them. This feature is called the "idle timeout". In a…
Tama Yoshi
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./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 configured the openvswitch on the Host as follows. sudo…
liv2hak
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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 but they only work with linux bridges. I thought…
igalvez
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