Re: [Ryu-devel] Starting up InBand Ryu controller

Iwase Yusuke Thu, 22 Feb 2018 17:31:04 -0800

Hi Soliman,

> root@mininet-vm:~# ovs-vsctl set Bridge s1 protocol=OpenFlow13


You are using the OpenFlow version 1.3, right?
"ryu/app/simple_switch.py" supposes the OpenFlow version 1.0, then you should
use "ryu/app/simple_switch_13.py" instead.
To confirm which version a Ryu application supports, please check "OFP_VERSIONS"
attribute on each application class.
http://osrg.github.io/ryu-book/en/html/switching_hub.html#class-definition-and-initialization

Thanks,
Iwase


On 2018年02月23日 01:43, Soliman Awad Alshra´a Abdullah TU Ilmenau wrote:

Dear Iwase,


I run the same script code topology on  
https://techandtrains.com/2013/10/05/in-band-controller-with-mininet-part-2/

mininet@mininet-vm:~$ sudo python Inband.py
*** Configuring hosts
h1 h2 h3
*** Starting controller
c0
*** Starting 1 switches
s1 ...
*** Starting CLI:
mininet>
__________________________________________________________________
then xterm s1

root@mininet-vm:~# ovs-vsctl show
0b8ed0aa-67ac-4405-af13-70249a7e8a96
     Bridge "s1"
         Controller "tcp:10.0.0.1:6633"
         fail_mode: secure
         Port "s1-eth2"
             Interface "s1-eth2"
         Port "s1"
             Interface "s1"
                 type: internal
         Port "s1-eth1"
             Interface "s1-eth1"
         Port "s1-eth3"
             Interface "s1-eth3"
     ovs_version: "2.0.2"

root@mininet-vm:~# ovs-dpctl show
system@ovs-system:
         lookups: hit:243 missed:25 lost:0
         flows: 1
         port 0: ovs-system (internal)
         port 1: s1-eth3
         port 2: s1-eth1
         port 3: s1 (internal)
         port 4: s1-eth2
root@mininet-vm:~# ovs-vsctl set Bridge s1 protocol=OpenFlow13
root@mininet-vm:~# ovs-ofctl -O OpenFlow13 dump-flows s1
OFPST_FLOW reply (OF1.3) (xid=0x2):
______________________________________________________________________
then xterm h1

root@mininet-vm:~/ryu# PYTHONPATH=. ./bin/ryu-manager ryu/app/simple_switch.py
loading app ryu/app/simple_switch.py
loading app ryu.controller.ofp_handler
instantiating app ryu.controller.ofp_handler of OFPHandler
instantiating app ryu/app/simple_switch.py of SimpleSwitch
________________________________________________________________________

Fainally, I tried to pingall

mininet> pingall
*** Ping: testing ping reachability
h1 -> X X
h2 -> X X
h3 -> X X
*** Results: 100% dropped (0/6 received)
___________________________________________________________________________


please, could you guide me to run the Ryu Inband controller ?


Best regards
A.Soliman


-----Original Message-----
From: Iwase Yusuke [mailto:iwase.yusu...@gmail.com]
Sent: Thursday, February 22, 2018 12:24 AM
To: Soliman Awad Alshra´a Abdullah TU Ilmenau <abdullah.alsh...@tu-ilmenau.de>
Cc: ryu-devel@lists.sourceforge.net
Subject: Re: [Ryu-devel] Starting up InBand Ryu controller

Hi Soliman,

The page you mentioned was written on OCTOBER 5, 2013 and the description might 
be old (e.g., the default OpenFlow version on Mininet has been changed).

Please refer to the Ryu-Book for running "Switching Hub" application.
http://osrg.github.io/ryu-book/en/html/switching_hub.html#execution-of-ryu-application

Thanks,
Iwase


On 2018年02月22日 00:15, Soliman Awad Alshra´a Abdullah TU Ilmenau wrote:

Hello all,

I am trying to use In-band controller as described here

_https://techandtrains.com/2013/10/05/in-band-controller-with-mininet-
part-2/

_when I open “ xterm h1 ” and ask controller to start up, nothing happens !!

root@mininet-vm:~# cd ryu

root@mininet-vm:~/ryu# PYTHONPATH=. ./bin/ryu-manager
ryu/app/simple_switch.py

loading app ryu/app/simple_switch.py

loading app ryu.controller.ofp_handler

instantiating app ryu.controller.ofp_handler of OFPHandler

instantiating app ryu/app/simple_switch.py of SimpleSwitc


when I instruct h1 to ping h2

mininet> h1 ping -c3 h2

PING 10.0.0.2 (10.0.0.2) 56(84) bytes of data.

  From 10.0.0.1 icmp_seq=1 Destination Host Unreachable

  From 10.0.0.1 icmp_seq=2 Destination Host Unreachable

  From 10.0.0.1 icmp_seq=3 Destination Host Unreachable

--- 10.0.0.2 ping statistics ---

3 packets transmitted, 0 received, +3 errors, 100% packet loss, time
2015ms

pipe 3

when I use  pingall

mininet> pingall

*** Ping: testing ping reachability

h1 -> X X

h2 -> X X

h3 -> X X

*** Results: 100% dropped (0/6 received)

Any advice will be highly apprenticed

Sincerely
A.Soliman



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Re: [Ryu-devel] Starting up InBand Ryu controller

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