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?
- 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
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.
Thanks.
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