[Ryu-devel] ?????? Avoid ARP flooding storm in a multipath topology

Hi, It is a simple application, so you can use ryu-manager simple_arp_proxy.py to run it. Maybe, I should develop it as a plugin or component instead of application. Yes , I have tested it before, and it really worked. You can find the example at my homepage: http://www.muzixing.com/pa

Re: [Ryu-devel] Avoid ARP flooding storm in a multipath topology

Hi Li Cheng, Thank you very much for your contribution! In fact, in my previous answer I was pointing out at your solution. Nevertheless, thanks for the link because I will have access to the latest version of the code. Regarding your code, I have some doubts and I am afraid that I am not running

Re: [Ryu-devel] [PATCH 1/6] bgp/bmp: send unmodified BGPUpdate to bmp server.

Hi, Ishida-san Thanks for your patches. But, I’ve found new issue regarding this patch. BMP client sets duplicate “BGPPathAttributeMpReachNLR” field in BMPRouteMonitoring messages as bellow. — ryu_bmp.log --- 2015 Jan 22 13:14:19 | 192.168.183.220 | BMPRouteMonitoring(bgp_update=BGPUpdate(len=1

[Ryu-devel] PyCon APAC/Taiwan 2015 Call for Proposals

Hi, everyone PyCon APAC/Taiwan 2015 is now calling for proposals. https://tw.pycon.org/2015apac/en/call-for-proposals/ Ryu is an OpenFlow Network Controller written in Python, which provides a framework to build your own Software Defined Network (SDN). Network Programming and SDN is a suitable

[Ryu-devel] [PATCH] Add parsing libpcap and reading/writing PCAP file

Add parsing libpcap and reading/writing PCAP file for debugging. This patch can easily dump the PCAP file in ryu controller. --- Che-Wei Lin , John Lin Institute of Communication Engineering, National Tsing Hua University 0001-Add-parsing-libpcap-and-reading-writi

[Ryu-devel] ?????? How to find available bandwidth of a link inOpenFlow

It is so hard to get the available bandwidth in real time. But you can count it by using OpenFlow.stats packets. About the weight, I suppose the most important part is the proportion. I can get 1:1 proportion by using double weight as 50. But I am not pretty sure about it. You can find some e

[Ryu-devel] ?????? Bufferid in messages

when controller receive features-reply packets from switches, RYU controller will set ofproto.OFP_NO_BUFFER in the default flow_mod , which you can see it at def switch_features_handler(self, ev). When a switch does not know how to handle a packet, and it will send the packet to the controlle

[Ryu-devel] ?????? Avoid ARP flooding storm in a multipath topology

Hi, long time ago, I had finished a simple application of avoiding ARP strom by ARP-PROXY, you can get it at:https://github.com/muzixing/ryu/blob/master/ryu/app/arp_proxy_13.py -- Li Cheng _ School of Information and Comm

Re: [Ryu-devel] Problem of port

Hi, Please don't drop the mailing list of Ryu-devel. On 2015年01月21日 18:27, 林彥宏 wrote: > Thanks your helps > But I don't know which function I have to add the code you told me. > When it run to "flow.match['tcp_src']", it will show me an error. > Could you send me a complete code? OK. Please chec

Re: [Ryu-devel] Controller Re-routing

Hi You can use EventLinkDelete event to handle it. And you can see how to use it at ryu/app/ws_topology.py line 81 Takeshi 2015-01-21 23:40 GMT+08:00 Andrew Niteesh : > Hi, > > I am new RYU Controller, please clarify, > > If I have a custom topology in mininet as mentioned below. > > [image:

[Ryu-devel] Controller Re-routing

Hi, I am new RYU Controller, please clarify, If I have a custom topology in mininet as mentioned below. [image: Inline image 1] Let's say if I am continuously pinging from H1 to H3, and now if I shutdown the interface between Switch-1 and switch-2. Does the RYU Controller is capable of re-rout

Re: [Ryu-devel] How to find available bandwidth of a link in OpenFlow

Estimating available bandwidth is kind of a big deal. Flavio Castro On Wed, Jan 21, 2015 at 12:22 AM, Minoru TAKAHASHI wrote:Hi, On 2015年01月19日 15:25, Padma Jayasankar wrote: > Hi, >   For my project i have to do load balancing based on available bandwidth. How to find