Hi Aravind,
I see that the TCP ports differ from the "working" and "non-working"
example (6633 vs 6653). Did you try to take a packet capture with Wireshark?
If the communication stops so suddenly, it feels like coming from such a
topic.
-Benny
On Fri, Dec 26, 2014 at 11:20 PM, Aravindhan Dhanasekaran <adha...@ncsu.edu>
wrote:
> Hello,
> I'm using OpenFlow reference implementation v1.3 switch (CPqD/Ericsson)
> and Ryu controller.
>
> My Ryu controller app is based on the L2 forwarding switch example.
> Whenever I start my controller, it receives the 'hello' message from the
> switch and goes to config mode. It just freezes in the config mode; it's
> not sending the switch features request message.
>
> But, it works perfectly when used in Mininet environment. I'm seeing this
> issue in a physical setup.
>
> See below for Ryu logs (physical/mininet environment) and commands used to
> execute the switch and controller.
>
> Any help would be appreciated.
>
> Thanks,
> /Aravind
>
>
> Topology
> ========
>
> controller (20.0.0.2/eth1) <----------> switch (20.0.0.1/eth1)
> ^
> |
> |
> |
> v
> datapath (2 ports - eth3, eth6)
>
> Commands Used
> =============
> sudo udatapath/ofdatapath -i eth3,eth6 ptcp:6653 -d abcdefabcdef
> sudo secchan/ofprotocol ptcp:6653 tcp:20.0.0.2:6653 --fail closed
> --log-file=/tmp/ofp.log
> ryu-manager --ofp-listen-host 20.0.0.2 --ofp-tcp-listen-port 6653
> --verbose fpm_firewall.py
>
> Controller Logs (physical setup)
> ================================
> $ ryu-manager --ofp-listen-host 20.0.0.2 --ofp-tcp-listen-port 6653
> --verbose fpm_firewall.py
> loading app fpm_firewall.py
> loading app ryu.controller.ofp_handler
> instantiating app ryu.controller.ofp_handler of OFPHandler
> instantiating app fpm_firewall.py of fpm_firewall
> BRICK ofp_event
> PROVIDES EventOFPPacketIn TO {'fpm_firewall': set(['main'])}
> PROVIDES EventOFPSwitchFeatures TO {'fpm_firewall': set(['config'])}
> CONSUMES EventOFPEchoRequest
> CONSUMES EventOFPHello
> CONSUMES EventOFPErrorMsg
> CONSUMES EventOFPSwitchFeatures
> CONSUMES EventOFPPortDescStatsReply
> BRICK fpm_firewall
> CONSUMES EventOFPPacketIn
> CONSUMES EventOFPSwitchFeatures
> connected socket:<eventlet.greenio.GreenSocket object at 0x305bdd0>
> address:('20.0.0.1', 38321)
> hello ev <ryu.controller.ofp_event.EventOFPHello object at 0x3064390>
> move onto config mode
>
> Controller Logs (mininet setup)
> ===============================
> $ ryu-manager fpm_firewall.py --verbose
> loading app fpm_firewall.py
> loading app ryu.controller.ofp_handler
> instantiating app ryu.controller.ofp_handler of OFPHandler
> instantiating app fpm_firewall.py of fpm_firewall
> BRICK ofp_event
> PROVIDES EventOFPPacketIn TO {'fpm_firewall': set(['main'])}
> PROVIDES EventOFPSwitchFeatures TO {'fpm_firewall': set(['config'])}
> CONSUMES EventOFPPortDescStatsReply
> CONSUMES EventOFPEchoRequest
> CONSUMES EventOFPSwitchFeatures
> CONSUMES EventOFPHello
> CONSUMES EventOFPErrorMsg
> BRICK fpm_firewall
> CONSUMES EventOFPPacketIn
> CONSUMES EventOFPSwitchFeatures
> connected socket:<eventlet.greenio.GreenSocket object at 0x2c07590>
> address:('127.0.0.1', 43124)
> hello ev <ryu.controller.ofp_event.EventOFPHello object at 0x2c07ad0>
> move onto config mode
> EVENT ofp_event->fpm_firewall EventOFPSwitchFeatures
> switch features ev version: 0x4 msg_type 0x6 xid 0x1735277a
> OFPSwitchFeatures(auxiliary_id=0,capabilities=79,datapath_id=1,n_buffers=256,n_tables=64)
> <my app specific log messages>
> ...
> move onto main mode
>
>
>
>
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leadership blogs to news, videos, case studies, tutorials and more. Take a
look and join the conversation now. http://goparallel.sourceforge.net
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