Re: [nox-dev] gathering status of Openflow Switch
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 kang-min-h...@hanmail.net
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 kyr.zari...@gmail.com
*받는사람* : Min-Hyup KANG kang-min-h...@hanmail.net
*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
kang-min-h...@hanmail.net
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Re: [nox-dev] gathering status of Openflow Switch
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 002320ca92e0Table stats in from datapath 00:23:20:ca:92:e0 hash2 : 0 linear : 200073|openflow-event|DBG:received stats reply from 002320ca92e0Port stats in from datapath 00:23:20:ca:92:e0 1 : 4 2 : 400074|openflow-event|DBG:received stats reply from 002320ca92e0Aggregate stats in from datapath 00:23:20:ca:92:e0 {'packet_count': 0L, 'byte_count': 0L, 'flow_count': 0L}- 원본 메일 -보낸사람: Kyriakos Zarifis kyr.zari...@gmail.com받는사람 : Min-Hyup KANG kang-min-h...@hanmail.net참조 : nox-dev@noxrepo.org날짜: 2011년 6월 20일 월요일, 00시 35분 26초 +0900제목: 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] gathering status of Openflow Switch
Thanks for your kindness.But there is not exsisting monitoring.py of netapps/so there is existing some derectory in netapps as a below.src/nox/netapps# lsMakefile.am __init__.py bindings_storage discovery hoststate networkstate routing switch_management tablog topologyMakefile.in authenticator data flow_fetcher laviroute storage switchstatstests user_event_logadditionally, I re-write some code(0xfff) in monitor.py refering mail. as a below,"""def aggregate_timer(self, dpid):flow = ofp_match()#flow.wildcards = 0xflow.wildcards = 0xself.ctxt.send_aggregate_stats_request(dpid, flow, 0xff)self.post_callback(MONITOR_TABLE_PERIOD, lambda : self.aggregate_timer(dpid))"""1.What does 0xfff mean ?and then, I re-run command.So, I can check below message.00086|openflow-event|DBG:received stats reply from 002320c2f7b4Aggregate stats in from datapath 00:23:20:c2:f7:b4{'packet_cout' : 39L, 'byte_cout' : 3822L, 'flow_count':2L }- 원본 메일 -보낸사람: Kyriakos Zarifis kyr.zari...@gmail.com받는사람 : Min-Hyup KANG kang-min-h...@hanmail.net참조 : nox-dev@noxrepo.org날짜: 2011년 6월 20일 월요일, 15시 34분 01초 +0900제목: Re: [nox-dev] gathering status of Openflow Switch
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 okay2011/6/19 Min-Hyup KANG kang-min-h...@hanmail.net
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 : 200073|openflow-event|DBG:received stats reply from 002320ca92e0
Port stats in from datapath 00:23:20:ca:92:e0 1 : 4 2 : 400074|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 kyr.zari...@gmail.com받는사람 : Min-Hyup KANG kang-min-h...@hanmail.net
참조 : nox-dev@noxrepo.org날짜: 2011년 6월 20일 월요일, 00시 35분 26초 +0900제목: 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
Best Regards,
Min-Hyup KANG
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Re: [nox-dev] Assertion on udp.checksum()
Unfortunately, your tweak breaks the logic of the assert.
The assert is asserting that self.next is a packet_base of some sort OR a
string. You've set it to a string, so... it should be a string. So it should
definitely not be a packet_base. So the first of your asserts will always
fail.
For the sake of testing, would you please comment out the first of your two
asserts (leaving only the one against type('')), and let me know the result?
-- Murphy
On Monday, June 20, 2011 09:22:23 AM Aaron Rosen wrote:
Hi Murphy,
I'm using zaku but the one in destiny looked the same to be.
I changed to assert to be on two lines so I could see which one was firing.
def checksum(self):
#assert(isinstance(self.next, packet_base) or type(self.next)
== type(''))
assert(isinstance(self.next, packet_base))
assert(type(self.next) == type(''))
Thanks,
Aaron
On Mon, Jun 20, 2011 at 12:19 PM, Murphy McCauley jam...@nau.edu wrote:
What NOX are you using? Your udp.py does not seem to be the one in zaku
or destiny...
-- Murphy
On Sunday, June 19, 2011 03:34:20 PM Aaron Rosen wrote:
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)
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Re: [nox-dev] Assertion on udp.checksum()
Hi Murphy,
wow... Opps...
I'm trying the following: This doesn't return any errors but in
wireshark the packet_outs say Malformed UDP packets.
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)
l4.arr = l4.tostring()
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
inst.send_openflow_packet(dpid, send_udp_message().tostring(),
openflow.OFPP_FLOOD, inport)
source = mac_to_str(packet.src)
On Mon, Jun 20, 2011 at 12:29 PM, Murphy McCauley jam...@nau.edu wrote:
Unfortunately, your tweak breaks the logic of the assert.
The assert is asserting that self.next is a packet_base of some sort OR a
string. You've set it to a string, so... it should be a string. So it should
definitely not be a packet_base. So the first of your asserts will always
fail.
For the sake of testing, would you please comment out the first of your two
asserts (leaving only the one against type('')), and let me know the result?
-- Murphy
On Monday, June 20, 2011 09:22:23 AM Aaron Rosen wrote:
Hi Murphy,
I'm using zaku but the one in destiny looked the same to be.
I changed to assert to be on two lines so I could see which one was firing.
def checksum(self):
#assert(isinstance(self.next, packet_base) or type(self.next)
== type(''))
assert(isinstance(self.next, packet_base))
assert(type(self.next) == type(''))
Thanks,
Aaron
On Mon, Jun 20, 2011 at 12:19 PM, Murphy McCauley jam...@nau.edu wrote:
What NOX are you using? Your udp.py does not seem to be the one in zaku
or destiny...
-- Murphy
On Sunday, June 19, 2011 03:34:20 PM Aaron Rosen wrote:
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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Re: [nox-dev] Assertion on udp.checksum()
Thanks Murphy!
You're right, that did the trick.
Aaron
On Mon, Jun 20, 2011 at 1:55 PM, Murphy McCauley jam...@nau.edu wrote:
So I think the call to l3.checksum() is extraneous, but the real issue is
probably that l3.iplen should be ipv4.MIN_LEN + l4.len.
-- Murphy
On Monday, June 20, 2011 09:42:07 AM Aaron Rosen wrote:
Hi Murphy,
wow... Opps...
I'm trying the following: This doesn't return any errors but in
wireshark the packet_outs say Malformed UDP packets.
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)
l4.arr = l4.tostring()
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
inst.send_openflow_packet(dpid, send_udp_message().tostring(),
openflow.OFPP_FLOOD, inport)
source = mac_to_str(packet.src)
On Mon, Jun 20, 2011 at 12:29 PM, Murphy McCauley jam...@nau.edu wrote:
Unfortunately, your tweak breaks the logic of the assert.
The assert is asserting that self.next is a packet_base of some sort OR a
string. You've set it to a string, so... it should be a string. So it
should definitely not be a packet_base. So the first of your asserts
will always fail.
For the sake of testing, would you please comment out the first of your
two asserts (leaving only the one against type('')), and let me know the
result?
-- Murphy
On Monday, June 20, 2011 09:22:23 AM Aaron Rosen wrote:
Hi Murphy,
I'm using zaku but the one in destiny looked the same to be.
I changed to assert to be on two lines so I could see which one was
firing.
def checksum(self):
#assert(isinstance(self.next, packet_base) or type(self.next)
== type(''))
assert(isinstance(self.next, packet_base))
assert(type(self.next) == type(''))
Thanks,
Aaron
On Mon, Jun 20, 2011 at 12:19 PM, Murphy McCauley jam...@nau.edu wrote:
What NOX are you using? Your udp.py does not seem to be the one in
zaku or destiny...
-- Murphy
On Sunday, June 19, 2011 03:34:20 PM Aaron Rosen wrote:
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] Something about Routing Application
Hi, I'm a freshman of Openflow and Nox. I want to make a demo about customized routing control, but there are something I'm confused. For example, I have a network topology consisting of 3 switches( Switch A, Switch B, Switch C), making up a triangle. We also have a host Host A connected to Switch A, a host Host B connected to Switch B. Now I want to sent packets from Host A to Host B as a routing problem. Based on the k-shortest path method, which is stated in the application of routing(routing.cc), the routing is Host A - Switch A - Switch B - Host B. However, I want to modify this route into Host A - Switch A - Switch C - Switch B - Host B, to represent the customized routing control. I want to know whether it is possible. Besides, I've already read about codes in the application of routing. If I want to finish the demo, what should I do to modify these codes. Thank you very much for reading this email. 2011-06-21 ZHOU Ye ___ nox-dev mailing list nox-dev@noxrepo.org http://noxrepo.org/mailman/listinfo/nox-dev
