you desire as it is part of my master thesis.
> >
> >
> > Best Regards,
> >
> >
> > Túlio Pascoal
> >
> > Em 15 de fev de 2017 10:01, "Moh'd Reza Abbasi" <mr.mrabb...@gmail.com
> <mailto:mr.mrabb...@gmail.com>> escre
Hello,
I would like to know how can I get information regarding the openflow
table capacity such as maximum entries, no. of entries installed etc.
The max_entries field mentioned here (
https://ryu.readthedocs.io/en/latest/app/ofctl_rest.html#get-table-stats)
is for one particular table in the
Thank you Tulio and Iwase, I appreciate your responses
Yes Tulio, you are right. I like to know about the total flow-table
capacity, the maximum entries that can be inserted into the switch.
I came to an understanding that openflow "ofp_switch_features" returns the
number of tables (n_tables),
Hello all,
I am new to SDN and Ryu controller world, so I have couple of questions:
1. How can I find out about switch TCAM capacity and available memory?
2. How can I find out about a flow size before installing the flow-rules
in the switches and establishing the path between the source
Hi,
I was experimenting with ryu, openflow stats request/reply, and mininet. I
noticed that duration_sec and duration_nsec are always the same for each
reply and they have same values i.e duration_sec = duration_nsec.
Is it the right behavior? shouldn't the values be different?
Because openflow
rs=0,rx_frame_err=0,rx_
> over_err=0,rx_crc_err=0,collisions=0,
> *duration_sec=739,duration_nsec=14000*)
>
> What switch do you use?
> I guess the problem is in your switch, not in Ryu.
> Please ask the development team of your switch.
>
> Thanks,
> Fujimoto
>
Hello Mathew,
I was wondering do you still have the same problem while using topology
discovery module?
Regards,
Reza
On Wed, Aug 9, 2017 at 3:41 PM, Matthew Hayes <
matthew_john_ha...@hotmail.com> wrote:
> Hi all,
>
> I've found that Ryu does not detect the disconnection of a switch when TCP
Hi all,
I would like to know how can I ensure that flow_mods sent to the switches
are processed by the switches before sending another batch of flow_mods.
For e.g I want to insert rules on the switches 1, 2, 3, 4 in two steps.
- First, the controller should insert the rules on the switches
I would like to know how can I infer if link or links are congested in a
network using Ryu controller?
Thank you
Reza
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rx_dropped", "rx_errors" and so on.
> http://ryu.readthedocs.io/en/latest/ofproto_v1_3_ref.html#ry
> u.ofproto.ofproto_v1_3_parser.OFPPortStatsReply
>
> Thanks,
> Iwase
>
>
>
> On 2018年02月09日 18:42, Moh'd Reza Abbasi wrote:
>
>> I would like to kno
I don't think OpenFlow v.1.3 has such a feature, but how about adding a
counter in your Ryu app to keep track of added/removed rules...
On Wed, Feb 28, 2018 at 11:53 AM, Eman Bany salameh via Ryu-devel <
ryu-devel@lists.sourceforge.net> wrote:
> Hi,
>
> I need to know the number of flows
Yes, you can. You can do something like this.
from ryu.lib.packet import packet
from ryu.lib.packet import ipv4
pkt = packet.Packet(msg.data)
ip_pkt = pkt.get_protocol(ipv4.ipv4)
src, dst = ip_pkt.src, ip_pkt.dst
On Fri, Oct 26, 2018 at 5:52 PM Munim Shabir wrote:
> Hi Guys,
>
> Can I extract
You should check if the incoming packet_in is a ipv4 packet or not. If it
is not then you will get the above error.
On Sat, Oct 27, 2018 at 7:18 PM Moh'd Reza Abbasi
wrote:
On Fri, Oct 26, 2018 at 7:12 PM Munim Shabir wrote:
> okay. So can i print in in event_packet_handler like be
Hey there everyone,
I am working on this simple routing application where it proactively finds
the shortest and the longest paths from a source to a destination, and
installs the flow entries on the switches in a path.
It uses networkx.shortest_simple_paths() to calculate the paths (this
function
I found the following script on the net. I use it to run and debug my ryu
apps. You can modify the script according to your need. You need to change
the "main_app" to your application name. You should also place this script
in the same path as your ryu app (or you might as well specify its path
Check the Ryu book. In the QoS chapter, there are some examples of how to
use queues.
On Mon, Jun 10, 2019 at 11:04 AM paperkid wrote:
>
> Dear technicians,
>
>
> now,I use ryu to develope an app that SDN controller get port queue status of
> switches periodically with OFPQUEUESTATUSREPLY
For the bandwidth you can get the stats of the ports at each end of a link
and select the port with minimum cap/bandwidth. Of course you have to also
calculate the bandwidth usage through flow stats. if you search in
google/github you will be able to find some code samples in projects that
have
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