Re: [nox-dev] gathering status of Openflow Switch

2011-06-19 Thread Kyriakos Zarifis 
Hi,

I was actually referring to netapps/monitoring/montoring.py, which is a more
complete (and complicated) monitoring component, but it is the same idea.
However the one you looked at might actually be a better example exactly
because it is simpler, but still shows how to create and send switch query
packets.
The output you pasted looks okay


2011/6/19 Min-Hyup KANG 

>   Hi,
>
>
> after I found monitoring.py,
>
> There is existing /src/nox/coreapps/examples/monitor.py.
>
> I think what you mean is /src/nox/coreapps/examples/monitor.py. right ?
>
>
> so, I excuted monitor component.
>
>
> I can check Table stats and Port stats, Aggregate stats as a below.
>
>
> 00072|openflow-event|DBG:received stats reply from 002320ca92e0
>
> Table stats in from datapath 00:23:20:ca:92:e0
>
> hash2 : 0
>
> linear : 2
>
> 00073|openflow-event|DBG:received stats reply from 002320ca92e0
>
> Port stats in from datapath 00:23:20:ca:92:e0
>
> 1 : 4
>
> 2 : 4
>
> 00074|openflow-event|DBG:received stats reply from 002320ca92e0
>
> Aggregate stats in from datapath 00:23:20:ca:92:e0
>
> {'packet_count': 0L, 'byte_count': 0L, 'flow_count': 0L}
>
>
>
>
> - 원본 메일 -
>
> *보낸사람*: Kyriakos Zarifis 
> *받는사람* : Min-Hyup KANG 
> *참조* : nox-dev@noxrepo.org
> *날짜*: 2011년 6월 20일 월요일, 00시 35분 26초 +0900
>
> *제목*: Re: [nox-dev] gathering status of Openflow Switch
> Hi,
>
> the 'monitoring' component I was referring to, is under:
> ** / src / nox / netapps / monitoring / monitoring.py**
>
> but on the Destiny branch of the repository (not Zaku which is the master
> branch).
> Follow the instructions here
> http://noxrepo.org/noxwiki/index.php/NOX_Installation#Installation (where
> it says "For a branch other than master"...)
> to switch to Destiny.
>
>>  -> you mean pyswitch can gather status of flow, port  in switch, right ?
>>
>> and I think I should use  ofp_stats_request, ofp_stats_reply,
>> ofp_desc_stats, ofp_port_stats_request, ofp_ports_stats etc of struct in
>> openflow.h and core.py
>>
>
> Exactly. You can see some example of how to build some messages in
> 'monitoring.py'
>
>
>
>
>
>
>
> Best Regards,
> Min-Hyup KANG
>
> 
>
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Re: [nox-dev] I'm openflow beginner

2011-06-19 Thread Min-Hyup KANG 



	
	
I received your mail successfully.so I think you become a member of nox-mailing list.- 원본 메일 -보낸사람: "Bluesky" 받는사람 : 날짜: 2011년 6월 20일 월요일, 15시 14분 35초 +0900제목: [nox-dev] I'm openflow beginner

	


	
	
Hi all, I'm a student ,who is interesting in openflow.I have signed up nox mailling-list, so I would like to check whether I become a member of nox-dev mailing list or not.If so, please let me know.Thanks, 





 			  


 


		


	
		







			Best Regards,
Min-Hyup KANG  


 

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[nox-dev] I'm openflow beginner

2011-06-19 Thread Bluesky 



	
	
Hi all, I'm a student ,who is interesting in openflow.I have signed up nox mailling-list, so I would like to check whether I become a member of nox-dev mailing list or not.If so, please let me know.Thanks, 





 			  


 

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[nox-dev] Assertion on udp.checksum()

2011-06-19 Thread Aaron Rosen 
Hello,

I'm trying to send udp packets from my controller but I'm getting the
following assertion when I call udp().checksum(). I was hoping someone
could point out where I'm going wrong.

Thanks,

Aaron

Traceback (most recent call last):
  File "./nox/lib/util.py", line 116, in f
event.total_len, buffer_id, packet)
  File "./nox/coreapps/examples/sos.py", line 299, in packet_in_callback
learn(dpid, inport, packet)
  File "./nox/coreapps/examples/sos.py", line 56, in learn
send_packet = send_udp_message()
  File "./nox/coreapps/examples/sos.py", line 48, in send_udp_message
l4.csum = l4.checksum()
  File "./nox/lib/packet/udp.py", line 111, in checksum
assert(isinstance(self.next, packet_base))
AssertionError


def send_udp_message():

l4 = udp()
l4.srcport = 1999
l4.dstport = 1888
l4.len = udp.MIN_LEN + len("hello_world")
l4.set_payload("Hello_world")

l3 = ipv4()
l3.iplen = ipv4.MIN_LEN
l3.protocol = ipv4.UDP_PROTOCOL
l3.dstip = ipstr_to_int("130.127.39.7");
l3.srcip = ipstr_to_int("1.1.1.1");
l3.set_payload(l4)

l2 = ethernet()
l2.set_payload(l3)
l2.dst = octstr_to_array("00:00:00:00:00:02")
l2.dst = octstr_to_array("a1:00:04:00:0a:04")
l2.type = ethernet.IP_TYPE
l3.checksum()
l4.csum = l4.checksum()

return l2



send_packet = send_udp_message()
inst.send_openflow_packet(dpid, send_packet.tostring(),
openflow.OFPP_FLOOD, inport)






-- 
Aaron O. Rosen
Masters Student - Network Communication
306B Fluor Daniel
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[nox-dev] how to only learn hosts directly attached to OF switch.

2011-06-19 Thread Aaron Rosen 
Hello,

I'm trying to keep a list of hosts that are actually on inports of an
openflow switch but the problem I'm running into is hosts that are on
the same vlan are getting picked up though the trunk port, (for
example the gateway). I know that I could hard code this inport so
that I don't learn these hosts but I was wondering if there was any
dynamic way to do this?

Thanks,

Aaron

-- 
Aaron O. Rosen
Masters Student - Network Communication
306B Fluor Daniel
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Re: [nox-dev] gathering status of Openflow Switch

2011-06-19 Thread Min-Hyup KANG 



	
	
Thank you for your kindness.I am using Openflow Switch(v.1.0) based on PC box. and I am using NOX zaku.1.You can look at the 'monitoring' component in the netapps folder-> do you mean switchstats.py and pycswitchstats.py  in /netapps ?additionally,  I test using "./nox_core -i ptcp:6633 -v pyswitch packetdump switchstats pycswitchstats "and then I can see this message.00076|openflow-event|DBG:received stats reply from 002320c576d600077|reactor|ERR:Unhandled Error	Traceback (most recent call last):	---  ---	  File "./nox/coreapps/pyrt/pyoxidereactor.py", line 86, in __call__	    self.func(*self.args, **self.kw);	  File "./nox/netapps/switchstats/switchstats.py", line 123, in 	    lambda : self.port_timer(dp))	  File "./nox/netapps/switchstats/switchstats.py", line 88, in port_timer	    self.ctxt.send_port_stats_request(dp)	  File "./nox/coreapps/pyrt/pycomponent.py", line 538, in send_port_stats_request	    def send_port_stats_request(self, *args): return _pycomponent.PyContext_send_port_stats_request(self, *args)	exceptions.TypeError: PyContext_send_port_stats_request() takes exactly 3 arguments (2 given)00078|openflow-event|DBG:received stats reply from 002320c576d62. (or, if you prefer, you can modify pyswitch to send such queries) -> you mean pyswitch can gather status of flow, port  in switch, right ?and I think I should use  ofp_stats_request, ofp_stats_reply, ofp_desc_stats, ofp_port_stats_request, ofp_ports_stats etc of struct in openflow.h and core.pyBut,  It is difficult to use . so I need your help.can you give some tips ?Many Thanks,- ¿øº» ¸ÞÀÏ -º¸³½»ç¶÷: Kyriakos Zarifis ¹Þ´Â»ç¶÷ : Min-Hyup KANG ÂüÁ¶ : nox-dev@noxrepo.org³¯Â¥: 2011³â 6¿ù 19ÀÏ ÀÏ¿äÀÏ, 18½Ã 10ºÐ 32ÃÊ +0900Á¦¸ñ: Re: [nox-dev] gathering status of Openflow Switch

	Hi, no, pyswitch does not show information about establish flows. You need to write a component that does that by sending query packets from NOX to the switch. (or, if you prefer, you can modify pyswitch to send such queries) You can look at the 'monitoring' component in the netapps folder, which gather statistics from switches, as an example for how to construct and send such query packets. From what I can tell, you are mostly interested in the "flow_stats" message
2011/6/18 Min-Hyup KANG 



	
	
Hi. allI would like to gather through pyswitch.py a little status information of flow in Openflow Switch(v.10)
I think I should use Openflow protocol that can gather their some status of flow between OpenflowSwitch and NOX controller.so Is it possible with pyswitch.py ?or Should I write a new C++ component ?
Thanks,






			Best Regards,
Min-Hyup KANG  


 

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			Best Regards,
Min-Hyup KANG  


 

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Re: [nox-dev] gathering status of Openflow Switch

2011-06-19 Thread Kyriakos Zarifis 
Hi,

the 'monitoring' component I was referring to, is under:
 / src / nox / netapps / monitoring / monitoring.py

but on the Destiny branch of the repository (not Zaku which is the master
branch).
Follow the instructions here
http://noxrepo.org/noxwiki/index.php/NOX_Installation#Installation (where it
says "For a branch other than master"...)
to switch to Destiny.

> -> you mean pyswitch can gather status of flow, port  in switch, right ?
>
> and I think I should use  ofp_stats_request, ofp_stats_reply,
> ofp_desc_stats, ofp_port_stats_request, ofp_ports_stats etc of struct in
> openflow.h and core.py
>

Exactly. You can see some example of how to build some messages in
'monitoring.py'
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Re: [nox-dev] gathering status of Openflow Switch

2011-06-19 Thread Kyriakos Zarifis 
Hi,

no, pyswitch does not show information about establish flows. You need to
write a component that does that by sending query packets from NOX to the
switch. (or, if you prefer, you can modify pyswitch to send such queries)
You can look at the 'monitoring' component in the netapps folder, which
gather statistics from switches, as an example for how to construct and send
such query packets. From what I can tell, you are mostly interested in the
"flow_stats" message

2011/6/18 Min-Hyup KANG 

>   Hi. all
>
>
> I would like to gather through pyswitch.py a little status information of
> flow in Openflow Switch(v.10)
>
>
> I think I should use Openflow protocol that can gather their some status of
> flow between OpenflowSwitch and NOX controller.
>
>
> so Is it possible with pyswitch.py ?
>
>
> or Should I write a new C++ component ?
>
>
> Thanks,
>
>
>
> Best Regards,
> Min-Hyup KANG
>
> 
> ___
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>
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