Re: [Ryu-devel] ryu-manager command not found

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Teame,

If I were installing Ryu and mininet as a testbed like I think you are I
would:

Install the following

ryu@ryu-mn:~$ *sudo apt-get install -**y **build-essential python-dev
mtr tcpdump lynx iperf tshark fping wireshark net-tools curl
python-pip python-eventlet python-routes python-webob python-paramiko
openvswitch-switch **git python3-pip*
---> Configuring wireshark-common    ---> Should non-superusers be
able to capture packets? *<Yes>*

ryu@ryu-mn:~$ *sudo chgrp wireshark /usr/bin/dumpcap*ryu@ryu-mn:~$
*sudo chmod 4711 /usr/bin/dumpcap*ryu@ryu-mn:~$ *sudo setcap
cap_net_admin,cap_net_raw=eip /usr/bin/dumpcap*

Install Mininet

ryu@ryu-mn:~$ *git -C /home/ryu/ clone
git://github.com/mininet/mininet
<http://github.com/mininet/mininet>*ryu@ryu-mn:~$ *sudo
**/home/**ryu**/mininet/util/install.sh -**n*

Install Ryu

ryu@ryu-mn:~$ *sudo apt-get install python3-ryu*ryu@ryu-mn:~$ *git
clone https://github.com/martimy/
<https://github.com/martimy/flowmanager> ~/flowmanager*

Test your testbed

ryu@ryu-mn:~$ *ryu-manager ryu.app.simple_switch_13*

loading app ryu.app.simple_switch_13
loading app ryu.controller.ofp_handler
instantiating app ryu.app.simple_switch_13 of SimpleSwitch13
instantiating app ryu.controller.ofp_handler of OFPHandler

In a different terminal run mininet

ryu@ryu-mn:~$ *sudo mn --controller remote,ip=127.0.0.1  --switch
ovsk,protocols=OpenFlow13 --mac --ipbase=10.1.1.0/24
<http://10.1.1.0/24> --topo single,4*

In another terminal review the OvS within mininet

ryu@ryu-mn:~$ *sudo ovs-vsctl show*
db733a9e-588e-4a7c-9010-e888ffabb244
    Bridge "s1"
        Controller "tcp:127.0.0.1:6653"
            is_connected: true
        Controller "ptcp:6654"
        fail_mode: secure
        Port "s1-eth2"
            Interface "s1-eth2"
        Port "s1"
            Interface "s1"
                type: internal
        Port "s1-eth4"
            Interface "s1-eth4"
        Port "s1-eth1"
            Interface "s1-eth1"
        Port "s1-eth3"
            Interface "s1-eth3"
    ovs_version: "2.9.0"

ryu@ryu-mn:~$ *sudo ovs-ofctl -O OpenFlow13 dump-flows s1*
 cookie=0x0, duration=153.609s, table=0, n_packets=34, n_bytes=2596,
priority=0 actions=CONTROLLER:65535

In the second terminal with the mininet shell

mininet> *pingall*
*** Ping: testing ping reachability
h1 -> h2 h3 h4
h2 -> h1 h3 h4
h3 -> h1 h2 h4
h4 -> h1 h2 h3
*** Results: 0% dropped (12/12 received)

Now re-review the flowtable in the OvS

ryu@ryu-mn:~$ *sudo ovs-ofctl --**protocols** OpenFlow13 dump-flows s1*
 cookie=0x0, duration=23.971s, table=0, n_packets=3, n_bytes=238,
priority=1,in_port="s1-eth2",dl_src=00:00:00:00:00:02,dl_dst=00:00:00:00:00:01
actions=output:"s1-eth1"
 cookie=0x0, duration=23.967s, table=0, n_packets=2, n_bytes=140,
priority=1,in_port="s1-eth1",dl_src=00:00:00:00:00:01,dl_dst=00:00:00:00:00:02
actions=output:"s1-eth2"
 cookie=0x0, duration=23.947s, table=0, n_packets=3, n_bytes=238,
priority=1,in_port="s1-eth3",dl_src=00:00:00:00:00:03,dl_dst=00:00:00:00:00:01
actions=output:"s1-eth1"
 cookie=0x0, duration=23.941s, table=0, n_packets=2, n_bytes=140,
priority=1,in_port="s1-eth1",dl_src=00:00:00:00:00:01,dl_dst=00:00:00:00:00:03
actions=output:"s1-eth3"
 cookie=0x0, duration=23.930s, table=0, n_packets=3, n_bytes=238,
priority=1,in_port="s1-eth4",dl_src=00:00:00:00:00:04,dl_dst=00:00:00:00:00:01
actions=output:"s1-eth1"
 cookie=0x0, duration=23.915s, table=0, n_packets=2, n_bytes=140,
priority=1,in_port="s1-eth1",dl_src=00:00:00:00:00:01,dl_dst=00:00:00:00:00:04
actions=output:"s1-eth4"
 cookie=0x0, duration=23.904s, table=0, n_packets=3, n_bytes=238,
priority=1,in_port="s1-eth3",dl_src=00:00:00:00:00:03,dl_dst=00:00:00:00:00:02
actions=output:"s1-eth2"
 cookie=0x0, duration=23.887s, table=0, n_packets=2, n_bytes=140,
priority=1,in_port="s1-eth2",dl_src=00:00:00:00:00:02,dl_dst=00:00:00:00:00:03
actions=output:"s1-eth3"
 cookie=0x0, duration=23.866s, table=0, n_packets=3, n_bytes=238,
priority=1,in_port="s1-eth4",dl_src=00:00:00:00:00:04,dl_dst=00:00:00:00:00:02
actions=output:"s1-eth2"
 cookie=0x0, duration=23.865s, table=0, n_packets=2, n_bytes=140,
priority=1,in_port="s1-eth2",dl_src=00:00:00:00:00:02,dl_dst=00:00:00:00:00:04
actions=output:"s1-eth4"
 cookie=0x0, duration=23.838s, table=0, n_packets=3, n_bytes=238,
priority=1,in_port="s1-eth4",dl_src=00:00:00:00:00:04,dl_dst=00:00:00:00:00:03
actions=output:"s1-eth3"
 cookie=0x0, duration=23.835s, table=0, n_packets=2, n_bytes=140,
priority=1,in_port="s1-eth3",dl_src=00:00:00:00:00:03,dl_dst=00:00:00:00:00:04
actions=output:"s1-eth4"
 cookie=0x0, duration=251.449s, table=0, n_packets=56, n_bytes=3968,
priority=0 actions=CONTROLLER:65535

If you have wireshark running pointed to 127.0.0.1 you should see something
like this
[image: image.png]

Now quit mininet and cleanup

mininet> *quit*
*** Stopping 1 controllers
c0
*** Stopping 6 terms
*** Stopping 4 links
....
*** Stopping 1 switches
s1
*** Stopping 4 hosts
h1 h2 h3 h4
*** Done
completed in 6.658 seconds

ryu@ryu-mn:~$ *sudo mn --clean*
*** Removing excess controllers/ofprotocols/ofdatapaths/pings/noxes
killall controller ofprotocol ofdatapath ping nox_corelt-nox_core
ovs-openflowd ovs-controllerovs-testcontroller udpbwtest mnexec ivs
ryu-manager 2> /dev/null
killall -9 controller ofprotocol ofdatapath ping nox_corelt-nox_core
ovs-openflowd ovs-controllerovs-testcontroller udpbwtest mnexec ivs
ryu-manager 2> /dev/null
pkill -9 -f "sudo mnexec"
*** Removing junk from /tmp
rm -f /tmp/vconn* /tmp/vlogs* /tmp/*.out /tmp/*.log
*** Removing old X11 tunnels
*** Removing excess kernel datapaths
ps ax | egrep -o 'dp[0-9]+' | sed 's/dp/nl:/'
***  Removing OVS datapaths
ovs-vsctl --timeout=1 list-br
ovs-vsctl --timeout=1 list-br
*** Removing all links of the pattern foo-ethX
ip link show | egrep -o '([-_.[:alnum:]]+-eth[[:digit:]]+)'
ip link show
*** Killing stale mininet node processes
pkill -9 -f mininet:
*** Shutting down stale tunnels
pkill -9 -f Tunnel=Ethernet
pkill -9 -f .ssh/mn
rm -f ~/.ssh/mn/*
*** Cleanup complete.

Your testbed is operational.

regards,

Diarmuid
--

*Irish by birth, located in Uganda but Munster by the grace of the Gods.*

On Wed, 8 May 2019 at 14:57, teame kahsay <19t...@gm...> wrote:

> thank for timely response Dear, im using mininet installed in vertualbox
> and ryu installed in ubunto18.04.
> if there is Pre-request to go with those environment please let me know.
> or if you have a guide line please attach to my email.
> kindly
>
> On Wed, May 8, 2019 at 12:45 PM Diarmuid O Briain <dia...@ob...>
> wrote:
>
>> Teame,
>>
>>>
>>> Try running this.
>>>
>>> ryu@ryu-mn:~$ *ryu-manager --observe-links --app-lists  ~/flowmanager/flowmanager.py* *ryu.app.simple_switch_13*
>>> loading app /home/ryu/flowmanager/flowmanager.py
>>> ('You are using Python ', sys.version_info(major=2, minor=7, micro=12, releaselevel='final', serial=0))
>>> loading app ryu.app.simple_switch_13
>>> loading app ryu.topology.switches
>>> loading app ryu.controller.ofp_handler
>>> instantiating app None of DPSet
>>> creating context dpset
>>> creating context wsgi
>>> instantiating app /home/ryu/flowmanager/flowmanager.py of FlowManager
>>> instantiating app ryu.app.simple_switch_13 of SimpleSwitch13
>>> instantiating app ryu.topology.switches of Switches
>>> instantiating app ryu.controller.ofp_handler of OFPHandler
>>> (2549) wsgi starting up on http://0.0.0.0:8080
>>>
>>> I assume you are using mininet to generate the network so to test run:
>>>
>>> ryu@ryu-mn:~$ *sudo mn --topo tree,depth=2,fanout=2 --switch ovsk --controller=remote,ip=127.0.0.1,port=6653 --mac**** Creating network*** Adding controller*** Adding hosts:h1 h2 h3 h4 *** Adding switches:s1 s2 s3 *** Adding links:(s1, s2) (s1, s3) (s2, h1) (s2, h2) (s3, h3) (s3, h4) *** Configuring hostsh1 h2 h3 h4 *** Starting controllerc0 *** Starting 3 switchess1 s2 s3 ...*** Starting CLI:mininet>
>>>
>>> Now browse to the server at port 8080, use Google Chrome as the browser.
>>>
>>> *http://localhost:8080/home/index.html <http://localhost:8080/home/index.html>*
>>>
>>> [image: image.png]
>>>
>>> regards,
>>>
>>> Diarmuid
>>>
>>> --
>>>
>>> *Irish by birth, located in Uganda but Munster by the grace of the Gods.*
>>>
>>>
>>>
>>>
>>>
>>> On Wed, 8 May 2019 at 10:29, teame kahsay <19t...@gm...> wrote:
>>>
>>>> Thanks, I'll check it out.
>>>>
>>>> On Tue, May 7, 2019 at 8:17 PM Diarmuid O Briain <dia...@ob...>
>>>> wrote:
>>>>
>>>>> Hi Teame,
>>>>>
>>>>> I would syggest installing the python3 version. I would also install Maen
>>>>> Artimy's wonderful flowmanager application.
>>>>>
>>>>> ~$* sudo apt-get install python3-ryu*
>>>>> ~$ *git clone https://github.com/martimy/flowmanager
>>>>> <https://github.com/martimy/flowmanager> ~/flowmanager*
>>>>> ~$ *ryu-manager ~/flowmanager/flowmanager.py ryu.app.simple_switch_13*
>>>>>
>>>>> regards,
>>>>>
>>>>> Diarmuid
>>>>> --
>>>>>
>>>>> *Irish by birth, located in Uganda but Munster by the grace of the
>>>>> Gods.*
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> On Tue, 7 May 2019 at 17:57, Fernando Farias <fe...@gm...> wrote:
>>>>>
>>>>>> Dear Teame,
>>>>>>
>>>>>> Try install ryu via pip:
>>>>>>
>>>>>> pip3 install ryu
>>>>>>
>>>>>> best regards,
>>>>>>
>>>>>>
>>>>>>
>>>>>> Em ter, 7 de mai de 2019 às 08:33, Soe Ye Htet <
>>>>>> soe...@gm...> escreveu:
>>>>>>
>>>>>>> Dear,
>>>>>>>
>>>>>>> Have you installed ryu controller in your Linux environment?
>>>>>>>
>>>>>>> Best regards,
>>>>>>> Soe Ye Htet
>>>>>>> Research Assistant
>>>>>>> Chulalongkorn University
>>>>>>>
>>>>>>> On Tue, May 7, 2019 at 4:15 PM teame kahsay <19t...@gm...>
>>>>>>> wrote:
>>>>>>>
>>>>>>>> hi, im new to ryu and generally to SDN, im starting learning using
>>>>>>>> ryu controller.
>>>>>>>>
>>>>>>>> when i start doing exercise using the ryu book, examples, and
>>>>>>>> starting executing the ryu app step by step, i got the error "ryu-manager
>>>>>>>> command not found" in the controller co (root ) terminal.
>>>>>>>>
>>>>>>>> how can i fix this error
>>>>>>>> _______________________________________________
>>>>>>>> Ryu-devel mailing list
>>>>>>>> Ryu...@li...
>>>>>>>> https://lists.sourceforge.net/lists/listinfo/ryu-devel
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> Best Regards,
>>>>>>> Soe Ye Htet
>>>>>>> Research Assistant (Chulalongkorn University)
>>>>>>> +66647240647
>>>>>>> _______________________________________________
>>>>>>> Ryu-devel mailing list
>>>>>>> Ryu...@li...
>>>>>>> https://lists.sourceforge.net/lists/listinfo/ryu-devel
>>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> "A computer is like air conditioning: it becomes useless when you open
>>>>>> windows." - Linus Torvalds
>>>>>>
>>>>>> Fernando N. N. Farias
>>>>>> Computer Science PhD. Student
>>>>>> Research Group member on Computer Networks and Multimedia
>>>>>> Communications - GERCOM/UFPA
>>>>>> Future Internet Team - GERCOM
>>>>>> Federal University of Pará
>>>>>>
>>>>>> _______________________________________________
>>>>>> Ryu-devel mailing list
>>>>>> Ryu...@li...
>>>>>> https://lists.sourceforge.net/lists/listinfo/ryu-devel
>>>>>>
>>>>>