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Questions tagged [sdn]

Software-defined networking (SDN)

Software-defined networking (SDN) is an approach to computer networking which evolved from work done at UC Berkeley and Stanford University around 2008. SDN allows network administrators to manage network services through abstraction of lower level functionality. This is done by decoupling the system that makes decisions about where traffic is sent (the control plane) from the underlying systems that forward traffic to the selected destination (the data plane). (source)

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How to send captured traffic from guest machine (installed in Virtualbox) to host machine?

I have captured traffic and stored in capture.pcap file. Now I want to send/replay that traffic from guest machine (installed in VirtualBox) to the host machine. How to send captured traffic from guest machine to host machine?
Om Prakash
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Opendaylight integration with IDP/LDAP for authn/authz

Is it possible to integrate Opendaylight(AAA) with IDP (or) LDAP for authn/authz ? Or is this part of ODL future roadmap ? I could see some reference documents stating about the above ones. Does anyone tried it, if so could you please share me the…
Jayaprakash
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Opendaylight shows wrong topology

I' m working on an SDN lab, I have 3 interconnected switches (2NETFPGA+1Open Vswitch) with a host connected to each. I'm setting OpenDayLight as a controller but the problem is that I can not get the controller to see the topology: It just shows the…
Striker
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Simulator for Openflow in LTE

I am currently researching on SDN in mobile networks (LTE). for that i am looking for a simulator, need advise. I have gone through NS3 and it appears as it supports Openflow Switches, but couldn't find documentation for that purpose. Need help in…
Shahzoob Bilal
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Communication between POX controller and Mininet Host

Iam new in SDN world. Trying to send some data (load statistics) from a mininet host to the POX controller running. Socket Connection or wget from pox didn't work. Is there is any way to do this?
hbhattac
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Virtualizing SDN and parsing packets in controller and switch using Python

I want to virtualize each element of an SDN network (2 hosts, 1 switch and 1 controller) in different VMs. At the moment, I am not sure which controllers and switches options are good and straightforward for me. After virtualizing the network, I…
OiaSam
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pox openflow - host_tracker not executing

I am new to pox and I don't know how to run the components in pox. Currently I'm stuck with the host_tracker.py taken from https://github.com/CPqD/RouteFlow/blob/master/pox/pox/host_tracker/host_tracker.py I've tried something like…
Anusha
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Modify action in OpenFlow Controller

I am trying to build a simple topology in Mininet with a load balancer. I am using a switch in place of the Load Balancer. I need to modify the destination IP to one of the server's IPs in order to perform the job of a load balancer. I am unable to…
codego123
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Fail to Run Openvswitch 2.5.0

I've removed the openvswitch version I had, and I downlaoded version (2.5.0) following the same steps in this link (https://github.com/mininet/mininet/wiki/Installing-new-version-of-Open-vSwitch) and instead of (OpenVSwitch 1.10) I used (OpenVSwitch…
Tom
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Can't echo to website as data not inserting to database

I need to troubleshoot a work done by friend. It seems that there is no error as I can launch the website with no problem. When select a choice from drop-down list and click add, it does not insert data to SQL and does not echo back to the website.…
IntelX7
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Change the OpenFlow Configuration on Floodlight

I would like to find a way to set the miss_send_len on floodlight to 0xFFFD i.e. translate the following POX line self.connection.send(of.ofp_set_config(miss_send_len = 0xFFFD)) into floodlight.
Wheatley
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SDN lab with NETFPGA-1g card and floodlight

I'am creating an SDN lab with NETFPGA-1g card and floodlight as controller, but I can't get floodlight controller to connect with the card (Not in localhost). I gave a static ip address to the controller and typed it the netfpga. The controller…
Striker
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How can I run a controller on a mininet host?

I would like to simulate a network using mininet where the controller is running on a host in the network. In all the mininet examples which I found, the controller communicates with the switches using the loopback interface, which simulates a case…
user1565904
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How could I get all versions of Openflow Switch Specification?

Recently I am studying SDN and Openflow. I want to read all versions of Openflow Switch Specification. When I went to Openflow, I only found Openflow Spec 0.8.9/0.9.0/1.0.0/1.1.0 and it told me to visit ONF for more information. But ONF made me…
Frank
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Getting started with line-rate virtual machine

I am beginning to study the use of virtual machines with realtime applications, specifically network applications. While I do understand the limitations and concerns, I'd like to get ideas as to how to get started on this task. I am going to use a…
howling cat
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