Hi,
On 2015年11月26日 14:54, Yusuke Iwase wrote:
> Hi,
>
> You can use the Flow Removed Message defined in OpenFlow Spec.
I attached a sample code for the purpose.
Please use it as reference.
Example of execution command is as follows.
# ryu-manager ./sample.py
thanks,
> Ryu provides EventOFPFlowRemoved to catch this message in your RyuApp.
>
> http://ryu.readthedocs.org/en/latest/ofproto_v1_3_ref.html#flow-removed-message
>
> Thanks,
> Iwase
>
> On 2015年11月26日 08:08, Randolph Hill wrote:
>> Newbie here,
>> I just experimenting with Ryu. How can I get a notification that a flow has
>> been deleted and the specifics of the flow?
>>
>> Sorry if this is a basic questions.
>>
>>
>> Thank you
>>
>> Randy (Abang)
>> ------------------------------------------------------------------------------
>> Go from Idea to Many App Stores Faster with Intel(R) XDK
>> Give your users amazing mobile app experiences with Intel(R) XDK.
>> Use one codebase in this all-in-one HTML5 development environment.
>> Design, debug & build mobile apps & 2D/3D high-impact games for multiple OSs.
>> http://pubads.g.doubleclick.net/gampad/clk?id=254741551&iu=/4140
>> _______________________________________________
>> Ryu-devel mailing list
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>>
>
> ------------------------------------------------------------------------------
> Go from Idea to Many App Stores Faster with Intel(R) XDK
> Give your users amazing mobile app experiences with Intel(R) XDK.
> Use one codebase in this all-in-one HTML5 development environment.
> Design, debug & build mobile apps & 2D/3D high-impact games for multiple OSs.
> http://pubads.g.doubleclick.net/gampad/clk?id=254741551&iu=/4140
> _______________________________________________
> Ryu-devel mailing list
> [email protected]
> https://lists.sourceforge.net/lists/listinfo/ryu-devel
>
from ryu.base import app_manager
from ryu.controller import ofp_event
from ryu.controller.handler import CONFIG_DISPATCHER, MAIN_DISPATCHER
from ryu.controller.handler import set_ev_cls
from ryu.ofproto import ofproto_v1_3
class MyApp(app_manager.RyuApp):
OFP_VERSIONS = [ofproto_v1_3.OFP_VERSION]
def __init__(self, *args, **kwargs):
super(MyApp, self).__init__(*args, **kwargs)
@set_ev_cls(ofp_event.EventOFPSwitchFeatures, CONFIG_DISPATCHER)
def switch_features_handler(self, ev):
datapath = ev.msg.datapath
self.add_flow(datapath)
def add_flow(self, datapath):
ofproto = datapath.ofproto
parser = datapath.ofproto_parser
# If this flag is set, the switch must send a flow
# removed message to the controller
flags = ofproto.OFPFF_SEND_FLOW_REM
priority = 0
match = parser.OFPMatch()
actions = []
inst = [parser.OFPInstructionActions(ofproto.OFPIT_APPLY_ACTIONS,
actions)]
mod = parser.OFPFlowMod(datapath=datapath, priority=priority,
flags = flags,
hard_timeout=5,
match=match, instructions=inst)
datapath.send_msg(mod)
@set_ev_cls(ofp_event.EventOFPFlowRemoved, MAIN_DISPATCHER)
def flow_removed_handler(self, ev):
msg = ev.msg
dp = msg.datapath
ofp = dp.ofproto
if msg.reason == ofp.OFPRR_IDLE_TIMEOUT:
reason = 'IDLE TIMEOUT'
elif msg.reason == ofp.OFPRR_HARD_TIMEOUT:
reason = 'HARD TIMEOUT'
elif msg.reason == ofp.OFPRR_DELETE:
reason = 'DELETE'
elif msg.reason == ofp.OFPRR_GROUP_DELETE:
reason = 'GROUP DELETE'
else:
reason = 'unknown'
self.logger.info('OFPFlowRemoved received: '
'cookie=%d priority=%d reason=%s table_id=%d '
'duration_sec=%d duration_nsec=%d '
'idle_timeout=%d hard_timeout=%d '
'packet_count=%d byte_count=%d match.fields=%s',
msg.cookie, msg.priority, reason, msg.table_id,
msg.duration_sec, msg.duration_nsec,
msg.idle_timeout, msg.hard_timeout,
msg.packet_count, msg.byte_count, msg.match)
------------------------------------------------------------------------------
Go from Idea to Many App Stores Faster with Intel(R) XDK
Give your users amazing mobile app experiences with Intel(R) XDK.
Use one codebase in this all-in-one HTML5 development environment.
Design, debug & build mobile apps & 2D/3D high-impact games for multiple OSs.
http://pubads.g.doubleclick.net/gampad/clk?id=254741551&iu=/4140
_______________________________________________
Ryu-devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/ryu-devel
