Hi, I am new to Ryu, and trying to set up Ryu on a Ubuntu 16 system.
I plan to run this against a Northbound Networks Zodiac GX switch, which I believe is OpenFlow version 1.3 using Open vSwitch. The Ubuntu 16 system is as follows: ~$ cat /etc/os-release NAME="Ubuntu" VERSION="16.04.6 LTS (Xenial Xerus)" ID=ubuntu ID_LIKE=debian PRETTY_NAME="Ubuntu 16.04.6 LTS" VERSION_ID="16.04" HOME_URL="http://www.ubuntu.com/"; SUPPORT_URL="http://help.ubuntu.com/"; BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"; VERSION_CODENAME=xenial UBUNTU_CODENAME=xenial The versions of Python and Ryu are as follows: $ ryu --version ryu 4.34 $ python3 -V Python 3.5.2 $ python -V Python 2.7.12 I have tried running the following example Python application copied from https://ryu.readthedocs.io/en/latest/writing_ryu_app.html $ cat l2.py from ryu.base import app_manager class L2Switch(app_manager.RyuApp): def __init__(self, *args, **kwargs): super(L2Switch, self).__init__(*args, **kwargs) The command line and output obtained is as follows: ~$ python3 /usr/bin/ryu-manager l2.py Traceback (most recent call last): File "/usr/bin/ryu-manager", line 5, in <module> from pkg_resources import load_entry_point File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2927, in <module> @_call_aside File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2913, in _call_aside f(*args, **kwargs) File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2940, in _initialize_master_working_set working_set = WorkingSet._build_master() File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 635, in _build_master ws.require(__requires__) File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 943, in require needed = self.resolve(parse_requirements(requirements)) File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 829, in resolve raise DistributionNotFound(req, requirers) pkg_resources.DistributionNotFound: The 'ryu==3.30' distribution was not found and is required by the application Are the versions of Ubuntu/Ryu/Python(3) incompatible? Do I need to upgrade or downgrade the versions? I presume that Ryu uses Python3? Note I have done both: $ sudo apt update $ sudo apt upgrade Also, is there any info available to get this up and running against the Northbound Networks Zodiac GX switch (Open vSwitch based with OpenFlow version 1.3)? Thanks in advance for any pointers. Best regards, Ed Edward Zietarski | Senior Telephony Engineer [vid] See how Semafone works<https://www.semafone.com/our-solution/how-it-works/demo/> [b] Read our insightful blog<https://semafone.com/media-centre/blog/> [p] Switchboard: 0845 543 0822 / Mobile: [e] ed.zietar...@semafone.com<mailto:ed.zietar...@semafone.com> [w] Web: semafone.com<https://semafone.com> / Twitter: @semafone<https://twitter.com/semafone> / LinkedIn: Semafone<https://uk.linkedin.com/company/semafone> [a] SEMAFONE, Pannell House, Park Street, Guildford, Surrey GU1 4HN [Semafone]<https://www.semafone.com> Disclaimer Semafone is a limited company, registered in England, with registered number 06963868. Our registered office is at Pannell House, Park Street, Guildford, Surrey, GU1 4HN, United Kingdom. The information contained in this communication from the sender is confidential. It is intended solely for use by the recipient and others authorized to receive it. If you are not the recipient, you are hereby notified that any disclosure, copying, distribution or taking action in relation of the contents of this information is strictly prohibited and may be unlawful. If you have received this email in error, please send it back to us, and immediately and permanently delete it. This email has been scanned for viruses and malware, and may have been automatically archived by Mimecast Ltd, an innovator in Software as a Service (SaaS) for business. Providing a safer and more useful place for your human generated data. Specializing in; Security, archiving and compliance. To find out more Click Here (https://protect-eu.mimecast.com/s/6sS0CE8WmI1xZECyHvaY?domain=linkprotect.cudasvc.com) . Although Semafone has taken reasonable precautions to ensure no viruses are present in this email, Semafone cannot accept responsibility for any loss or damage sustained as a result of computer viruses and the recipient must ensure that the email (and any attachments) are virus free. For information about how we process data and monitor communications please see our Privacy Policy (https://semafone.com/gb/privacy/)
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