I'll gather the PCAP and send it too you. Thanks! If the LLC library is correct, I think the LLC frame might not be following the standard, which is why the parsing and assertion may have failed.Or as you stated there might be a bug in the LLC parsing code.
>When your application catches fatal exceptions, calling sys.exit() >stops the framework too? My application didn't catch any fatal exceptions. I can introduce that into catch statements though. Thanks. On Sun, Oct 26, 2014 at 9:24 AM, FUJITA Tomonori < [email protected]> wrote: > On Thu, 23 Oct 2014 10:58:24 -0400 > A G <[email protected]> wrote: > > > Will using the ryu.base.app_manager."My App Name".reply_to_request(*req*, > > *rep*) ensure that the application that I've written is still running? > > Not. Applications are connected with queue. So sending a request means > just putting a request message to another application's queue. > > > - If it does ensure that it is still running > > - Will it block the framework from responding to echo requests > from a > > switch? > > - Can someone please provide an example of how I would set up an > > application to use this request and reply_to_request methods? > > - My application received a packet that was attempted to be parsed as > an > > LLC packet but failed somewhere > > > > 2014-10-13 17:32:54102 ERROR ryu.lib.hub hub: uncaught exception: > Traceback > > (most recent call last): > > File "/usr/lib/python2.6/site-packages/ryu/lib/hub.py", line 52, in > > _launch > > func(*args, **kwargs) > > File "/usr/lib/python2.6/site-packages/ryu/base/app_manager.py", line > > 274, in _event_loop > > handler(ev) > > File "/home/alex/ryu/ryu/app/simple_switch_HP-9-16-2014.py", line 91, > in > > _packet_in_handler > > pkt = packet.Packet(msg.data) > > File "/usr/lib/python2.6/site-packages/ryu/lib/packet/packet.py", line > > 45, in __init__ > > self._parser(parse_cls) > > File "/usr/lib/python2.6/site-packages/ryu/lib/packet/packet.py", line > > 51, in _parser > > proto, cls, rest_data = cls.parser(rest_data) > > File "/usr/lib/python2.6/site-packages/ryu/lib/packet/llc.py", line > 153, > > in parser > > control, information = ctrl.parser(buf[cls._PACK_LEN:]) > > File "/usr/lib/python2.6/site-packages/ryu/lib/packet/llc.py", line > 253, > > in parser > > assert (control >> 12) & 0b1111 == 0 > > AssertionError > > Our llc library's bug or your packet is corrupted. Can you send a pcap > file of llc packets on your env? > > As I wrote in another thread, our packet library should not crash with > any packets though. > > > > As a result this killed my switching application but the underlying > > framework was still running. In any event that the switching application > > dies, I'd like for the framework to also stop. I understand that the root > > cause should fixed too. But I'd like for a mechanism to stop the > framework > > so that my physical switches will enter into the fail-standalone mode. > > When your application catches fatal exceptions, calling sys.exit() > stops the framework too? > -- [email protected]
------------------------------------------------------------------------------
_______________________________________________ Ryu-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ryu-devel
