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1answer
73 views

A flow hit the OpenFlow flow table improperly

I did a small experiment by using mininet,ONOS, Iperf. I want to see flow routing according to srcIP, dstIP, UDP, dstPort. Therefore, I generated a UDP flow (srcIP=10.0.0.3, dstIP=10.0.0.2, dstPORT=...
0
votes
1answer
254 views

Detecting access point tree on POX Spanning Tree

I have created a topology at Mininet-Wifi with 4 access point and 2 station. #!/usr/bin/python import sys from mininet.net import Mininet from mininet.node import Controller,OVSKernelSwitch, ...
0
votes
1answer
261 views

dpctl: OpenFlow packet receive failed: unexpected end of file

I'm doing some experiment with SDN and pox controller, I have written flows manually shown below: dpctl add-flow tcp:127.0.0.1:6653 in_port=10,actions=output:14 dpctl add-flow tcp:127.0.0.1:6653 ...
0
votes
1answer
362 views

The communication among multiple controllers

I want to have a simple multi-domain topology in mininet in which each domain is controlled by a single controller and the communication among domains will take place through controllers. So I will ...
1
vote
2answers
286 views

Direct packet forwarding by controller

In a SDN network when a switch receives a packet for which it can not find a match in its flow table, it will forward this packet to the controller. The controller will decide about this packet and ...
0
votes
1answer
91 views

OpenFlow takes some seconds to apply rule

Is there a delay for openflow rules added with ovs-vsctl tool? I am successfully limiting the traffic of a specific interface with: ovs-vsctl set interface s0-eth1 ingress_policing_rate=128 ...
3
votes
2answers
1k views

Problem with an n-host, zero-switch topology in mininet

I am experimenting a bit to gain a better understanding of Mininet and Openflow. I have built a topology with n hosts in a line and no switches. Strangely, host 1 and host 2 can ping each other but ...
1
vote
1answer
1k views

Problem configuring QoS with FlowVisor and OpenVswitch

I am running a small experiment to isolate bandwidth with flowvisor (version 1.4, version 1.0 of openflow) implementing a port based slicing. With mininet, I create a topology that consists of a host ...
3
votes
1answer
698 views

Application aware routing in software defined network

For the last couple of months i am delving into SDN and trying to implement the application aware routing through SDN . Application aware routing: SDN controller will route each application data ...
1
vote
1answer
760 views

Get packet loss from Open Flow switch

I am using an Ryu controller (3.22) to monitor switches (Open vSwitch 2.0.2, supporting Open Flow 1.3), which are a part of virtual network created using mininet (2.1.0). It is a tree topology with ...
4
votes
1answer
2k views

Decoding packets in an OpenFlow ryu switch

I'm trying to examine a simple OpenFlow ryu switch, and get out of it the destination and source addresses. I'm using Mininet. For example for the next commands: h1 python -m SimpleHTTPServer 80 &...