[nox-dev] how to get individual flows
Hi every one, Apart from aggregate statistics I want to retrieve flows from switches. To do that I am running my component along with monitoring component in the command line. In my component I have the following code: # to send flow stats request def send_flow_stats_request(): global xid flow = of.ofp_match() flow.wildcards = of.OFPFW_ALL flow.dl_source = NONE flow.dl_type = ethernet.IP_TYPE inst.Monitoring.send_flow_stats_request(dpid,flows,0xff,xid) xid +=1 # to handle flow stats in def flow_stats_in_handler(dpid, flows, more, xid): print\n^^ Flow statistics report ^ print from %s: size %s: % dpid,str(flows) print number of flow %s: % flows['flow_count'] #data =0; #ELEPHANT_FLOW_THRESHOLD = 500 for i, flw in flows: num_bytes = flw['byte_count'] num_packets = flw['packet_count'] print Byte -size: %s , pakcet size: %s % longlong_to_octstr(num_byte) if num_bytes ELEPHANT_FLOW_THRESHOLD: inport = flows[i]['match']['in_port'] flow = flows[i]['match'] actions = [] #do sth with the flow here I have also set appropriate call back timers. So the question is I am not getting the flows. I am able to get aggregate flow stats and port stats with the same approach. can any one please tell me where I did the mistake. Also which component is printing the following message: [(XEROX CORPORATION):00:00:0c01:23:20:00:00:01:LLDP]chassis ID:64:70:69:64:3a:63port ID:00:06ttl:120tlv end when I run my component a bunch of this text is displayed in the screen. Sincerely, -- Baraki H. Abay Department of Math and Computer science North Carolina Central University Durham, 27707 NC ___ nox-dev mailing list nox-dev@noxrepo.org http://noxrepo.org/mailman/listinfo/nox-dev
[nox-dev] monitoring usage error
Hello everyone, I want use the methods in the Monitoring component to send flow stats request from my own component. I did the following two variations to user the monitoringcomponent 1. include monitoring component in the dependency list of my components meta.json file import the monitoring component as: from nox.netapps.monitoring.monitoring import Monitoring then inside my component : def __init_(self, ctxt): global inst Component.__init__(self,ctxt) inst.Monitoring = ctxt.resolve(Monitoring) and then use it like, inst.Monitoring.send_flow_stats_request() this gives me Monitoring description not found error. 2. when I tried to use the monitoring component in the command line after the proper import as follows ./nox_core -i ptcp:6633 monitoring mycomponent it gives me again the following error. inst.Monitoring = ctxt.resolve(Monitoring) AttributeError: 'NoneType' object has not attribute 'Monitoring' please tell me where my mistake is. thanks -- Baraki H. Abay Department of Math and Computer science North Carolina Central University Durham, 27707 NC ___ nox-dev mailing list nox-dev@noxrepo.org http://noxrepo.org/mailman/listinfo/nox-dev
[nox-dev] NOX error
anyone familiar with the following error. 2|pyrt|ERR:Can't load and parse 'nox/coreapps/examples/meta.json the meta.json file has all the required dependency lists -- Baraki H. Abay Department of Math and Computer science North Carolina Central University Durham, 27707 NC ___ nox-dev mailing list nox-dev@noxrepo.org http://noxrepo.org/mailman/listinfo/nox-dev
[nox-dev] monitoring module not available in my nox repository
hello every one, I am trying to gather the flow statistics info from switches in my network through my Component. I tried to import the 'monitoring' module to use it send flow statistics request as follows. from nox.netapps.monitoring.monitoring import Monitoring and got the following error ImportError: No module named monitoring.monitoring isn't the monitoring module available in the zaku version? what else could it be? similarly it gives me similar error when i import the pyopenflow (import nox.lib.pyopenflow as of) model. when i check the directory list both modules are not available. Moreover, inst.register_for_flow_stats_in(my_flow_in_handler) gives me the following error Attribute erro: myswitch instance has no attribute 'register_for_flow_stats_in' where 'myswitch' is my custom component thanks in advance -- Baraki H. Abay Department of Math and Computer science North Carolina Central University Durham, 27707 NC ___ nox-dev mailing list nox-dev@noxrepo.org http://noxrepo.org/mailman/listinfo/nox-dev
[nox-dev] I can't run nox after checking out to destiny
please help me. after checking out to destiny branch I can not even run nox controller the command ./nox_core -i ptcp:6633 displays a bunch of information with a last info Caught signal 6 Aborted. what am I supposed to do after checkout. I have done the following after checking out. ./boot.sh mkdir build/ cd build/ ../configure make -j 5 thanks -- Baraki H. Abay Department of Math and Computer science North Carolina Central University Durham, 27707 NC ___ nox-dev mailing list nox-dev@noxrepo.org http://noxrepo.org/mailman/listinfo/nox-dev
[nox-dev] how to use own controller in custom topology
Dear all,
I have built a simple custom topology network in mininet. and want to use a
my own controller in the topology. as
follows;
net = Mininet(controller= lambda name: NOX(name ,'myswitch')) # where
'myswitch' is a learning switch component
also to add multiple controllers to the topology I did the following
additions
c1 = net.addController('c1', port = 6633)
c2 = net.addController('c2', port = 6634)
when I run the topology I got the following error
controller_new = controller(name,**kwargs)
TypeError:lambda() got an unexpected key word argument 'port'
in addition pinging between hosts attached to different switches is not
working. How can I resolve this?
Sincerely,
--
Baraki H. Abay
Department of Math and Computer science
North Carolina Central University
Durham, 27707 NC
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[nox-dev] help need
Hi dear nox developers, I am new to NOX development. I am trying to create my own component under a new directory. for testing purpose I did the following things (in the virtual machine): 1. made directory under the coreapps directory 2. I copy the files in the examples directory and renamed the pyswitch.py file to myswitch.py 3. also made all possible changes in the Makefile.ac, meta.json files 4. now i want to run the new component in the command line as: ./nox_core -v pctp:2525 myswitch it gave me the following error after displaying some verbose descriptions: 00042|nox|ERR: Application myswitch description not found 1. is it possible to create a new directory and create new component under it? 2. if possible how can I compile the component in the new directory? i did ./boot.sh 3. what else did I forget? what other things did I forget? I appreciate your cooperation in advance. -- Baraki H. Abay Department of Math and Computer science North Carolina Central University Durham, 27707 NC ___ nox-dev mailing list nox-dev@noxrepo.org http://noxrepo.org/mailman/listinfo/nox-dev
