ere
being converted to 64-bit signed, but that's a different issue in
itself. I changed the code to 'I' for 32-bit unsigned.
Here's a patch to fix this.
-- Derek
>From 5f077992ee10a20f3136178a1f1ee288e468b502 Mon Sep 17 00:00:00 2001
From: Derek Cormier
Date: Mon, 28 Feb 20
Hello,
I think I may have found a bug. First, I add a flow where the dl_type
set and everything else is wildcarded. Then I delete it using
delete_strict_datapath_flow(). When I receive a flow removed event, I
print out the match dictionary and see:
{'dl_type': 5, 'nw_dst_n_wild': 0L, 'nw_dst
Without minding the typos, that is...
On 01/28/2011 04:46 PM, Derek Cormier wrote:
Ok I'll give it a try and submit a patch when I'm finished. Could you
please tell me if the following is
the right approach?
template <>
PyObject*
to_python(const ofp_action_header &a)
e to_python() for ofp_flow_stats. Step two, unpack v_actions
from the Flow_stats struct into a list of dicts and throw it into "dict"
too. Except instead of step two, we have /* XXX actions */. :) You
should be able to just go ahead and implement it there.
-- Murphy
On Fri, 2011-0
Hello,
I was looking at pyglue.cc and it looks like actions are never included
in python events.
A comment says to use Flow_stats, but flow stats contains a vector
ofp_action_header's. Since actions are variable-length, won't this cut
off data when the action is longer than the header? (For
Regards
KK
On 12 January 2011 21:40, Derek Cormier wrote:
Thanks! I'm glad my patches are decent.
I've attached another one for destiny:
In a Flow_removed_event, the fields are taken from an ofp_flow_removed
message,
but a couple of fields were missing (reason and priority). I added
On 3 January 2011 17:19, Derek Cormier wrote:
Sure thing. Where do the doxygen comments go? I've never used doxygen
before, I'm assuming they go above the struct definition but I don't see any
such comments in the files I edited. Is there another file?
Thanks,
-Derek
On 01/04/201
*/
struct x_event
{
...
}
They are more in-depth example in the components.
Regards
KK
On 3 January 2011 17:19, Derek Cormier wrote:
Sure thing. Where do the doxygen comments go? I've never used doxygen
before, I'm assuming they go above the struct definition but I don't see any
s
05:03 AM, kk yap wrote:
Hi Derek,
I pushed all the patches. I did not realize you are just exposing
things to Python and not declaring new structs. Sorry. A quick
glimpse has failed me.
Regards
KK
On 3 January 2011 21:07, Derek Cormier wrote:
Here is a patch for destiny to fix a bug
Here is a patch for destiny to fix a bug where pyglue.cc was using ntohl
on ofp_flow_stat's cookie field instead of ntohll, which is required for
64-bit values.
-Derek
>From 05b659b0ba0840045b0223fb7f6843f7742c18ba Mon Sep 17 00:00:00 2001
From: Derek Cormier
Date: Tue, 4 Jan 2011
Srini, it appears I was mistaken. Open vSwitch does not add a duplicate.
I thought it did before, but I might have been imagining things.
-Derek
On 12/29/2010 02:32 PM, Derek Cormier wrote:
Hi Srini,
If I recall correctly, when I add two flows with the same match
pattern, Open vSwitch shows
7;m curious: How do you add flows with same match pattern and not have
> them be overwritten at the switch level?
>
> On Sun, Dec 19, 2010 at 4:46 PM, Derek Cormier
> wrote:
> > Let's say you add a few flows that are exactly the same using
> > install_datapath_flow(). Th
Here's a couple more patches for destiny.
'barrier-reply.tar.gz' - make barrier reply events available to the
Python API.
'flow-stats-in.tar.gz' - add a convenience method in component to
register for flow stats in events.
-Derek
On 12/28/2010 01:30 AM, Martin Casado wrote:
Thanks KK.
Great. Should I post any future changes here on the Nox board or send
them to a developer like yourself?
-Derek
On 12/27/2010 02:54 PM, kk yap wrote:
Hi Derek,
Thanks. I pushed this to destiny (unstable).
Regards
KK
On 26 December 2010 16:56, Derek Cormier <mailto:derek.c
Woops! I'm not sure how it happened but I somehow messed up the patch
file. Please use this attached one instead.
-Derek
On 12/27/2010 09:48 AM, Derek Cormier wrote:
Hi KK,
I've attached the patch. Sorry for taking so long to reply, I was away
for the holidays. The patch is for
rballed? Sorry Gmail reformats things a little, so the
git-format-patch output is distorted.
Regards
KK
On 21 December 2010 23:38, Derek Cormier
wrote:
Hello,
I would like to start contributing to the Nox code. This is my first
time
contributing to open source software, and I'm still new to git,
et me know if I didn't do this right.
Thanks!
Derek
From ea590df29ae342bb9029b90829fa1ddf3ff36d10 Mon Sep 17 00:00:00 2001
From: Derek Cormier
Date: Wed, 22 Dec 2010 16:18:33 +0900
Subject: [PATCH] Allow python components to register for error events
through a class method.
---
src/nox
Does Nox use a flow entry's cookie field? Or, can we use it for our own
purposes?
Thanks
-Derek
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On 19 December 2010 21:10, Derek Cormier wrote:
I noticed that the flow mod event fires in response to a successful NOX API
call for adding a flow. It gives the impression that it was successfully
added to the switch, but, this is not always the case. For example, if I
send two identical ofp_flo
I noticed that the flow mod event fires in response to a successful NOX
API call for adding a flow. It gives the impression that it was
successfully added to the switch, but, this is not always the case. For
example, if I send two identical /ofp_flow_mod/ requests with the
*OFPFF_CHECK_OVERLAP*
Let's say you add a few flows that are exactly the same using
/install_datapath_flow()/. Then, you do a flow stats request for that
flow. The response body should contain an array of flow stats- one for
each flow. Is there any way to know which stats element belongs to which
flow? Is the first
at on the way out in pycontext.cc.
-Derek
On 12/17/2010 04:07 PM, Derek Cormier wrote:
It works =)
On 12/17/2010 04:03 PM, Murphy McCauley wrote:
Ugh, I have actually been sitting on a patch forever that add support
for xids all the way through Python; I really should nail it down and
comm
, at 10:52 PM, Derek Cormier wrote:
Hello,
I'm modifying some Nox code so that core.py's *install_datapath_flow*
takes another argument- the xid for the flow mod request.
def install_datapath_flow(self, dp_id, attrs, idle_timeout, hard_timeout,
actions,
Hello,
I'm modifying some Nox code so that core.py's *install_datapath_flow*
takes another argument- the xid for the flow mod request.
def install_datapath_flow(self, dp_id, attrs, idle_timeout, hard_timeout,
actions, buffer_id=None,
Did you call the configure script with python?
./configure --with-python=yes
-Derek
On 12/17/2010 10:18 AM, Stephen Wong wrote:
Hi,
I just compiled NOX from the latest repository (make/make check/make
install all succeed), but when I tried to run it, I got the following error:
openf...@
@KK
It turns out I made a wrong assumption. I thought that when an
ofp_flow_mod (OFPFC_ADD) message was sent, it returns a reply with the
same xid. After looking at the OF protocol, it looks like a message is
only sent back if an error occurred.
@Rob
The cookie isn't quite what I'm looking fo
Hello,
When you receive a flow mod event, is there any way to associate it with
the xid of the original request that caused it? I'm looking for a way to
confirm that a specific request generated a specific response. For
example, if multiple components are running and they both send a packet
t
Dear Nox devs,
If possible, would you consider making the git repository available via
HTTP? The proxy at my work (and perhaps others') blocks git requests.
Thank you,
Derek
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a
handler for that. For the details of Error_event, please see
include/error-event.hh
On Fri, Dec 10, 2010 at 12:12 AM, Derek Cormier
wrote:
Hello,
I'm looking for a way to see if adding a flow failed. In the OpenFlow
protocol, it says an ofp_error_msg message is returned. Is there
Hello,
I'm looking for a way to see if adding a flow failed. In the OpenFlow
protocol, it says an ofp_error_msg message is returned. Is there any
event I can register for to catch this? I would also like to catch an
error of type OFPET_FLOW_MOD_FAILED. I'm using a python component.
Thanks!
-
Oh, that's embarrasing! I was using body.port_no instead of
body.out_port. It works now.
-Derek
On 12/03/2010 10:34 AM, Derek Cormier wrote:
I registered for flow mod events and the event shows the flow being
added. I can also see the flow through Open vSwitch. I'm not receiving
I registered for flow mod events and the event shows the flow being
added. I can also see the flow through Open vSwitch. I'm not receiving
any errors, so the request is in the correct format. Could it be a
problem with Open vSwitch?
Request ==
request = ofp_stats_request()
req
quest.
and also looks the same as some code that I have that's working.. the
only difference is that I'm using
body.match.wildcards = 0x
although that shouldn't make a difference. But if you want you can try
it out
On Tue, Nov 30, 2010 at 5:56 PM, Derek Cormie
d and send your stats request?
On Tue, Nov 30, 2010 at 5:48 PM, Derek Cormier
mailto:derek.corm...@lab.ntt.co.jp>> wrote:
Interesting. I used Open vSwitch's ovs-ofctl dump-flows and I can
see the flow. I am waiting three seconds after installing the flow
before requesting th
using dpctl to verify that it is empty?
( could it be the timing? are you sending the request right after you
send the flowmod?)
On Tue, Nov 30, 2010 at 5:33 PM, Derek Cormier
mailto:derek.corm...@lab.ntt.co.jp>> wrote:
Oh, and I forgot to mention that I am sending a flow stats reques
Oh, and I forgot to mention that I am sending a flow stats request.
On 12/01/2010 10:30 AM, Derek Cormier wrote:
Hello,
I am trying to add a flow to a switch in my Nox component. After the
switch joins the datapath, I create a simple flow to test that it works:
flow = dict()
flow[NW_PROTO
Hello,
I am trying to add a flow to a switch in my Nox component. After the
switch joins the datapath, I create a simple flow to test that it works:
flow = dict()
flow[NW_PROTO] = UDP_PROTOCOL
self.install_datapath_flow(dpid, flow, OFP_FLOW_PERMANENT,
OFP_FLOW_PERMANENT, [[OFPAT_OUTPUT, [0, O
Hi Derek,
In C/C++, jsonmessenger provides an example.
Regards
KK
On 29 November 2010 17:57, Derek Cormier wrote:
Hi Kyriakos,
I was looking to send arguments when running ./nox_core. I just found the
documentation on the Wiki, but it's not clear on how to access the arguments
fro
component.
(If you use the GUI from destiny, you can type a json command in the
console and direct it to any component)
On Mon, Nov 29, 2010 at 4:48 PM, Derek Cormier
mailto:derek.corm...@lab.ntt.co.jp>> wrote:
Is there any way to send command line arguments to Nox components?
T
Is there any way to send command line arguments to Nox components?
Thanks,
Derek
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If I write a NOX component in python, are there any methods for
returning the datapath ID of all connected switches? As I was browsing
through the core API and components, I saw that many methods take a
dpid, but I couldn't find any for retrieving them in the first place.
Thanks,
-Derek
_
l you need is the
following in the install() method:
factory = Factory()
factory.protocol = QOTD
reactor.listenTCP(8007, factory)
-- Murphy
On Nov 21, 2010, at 11:57 PM, Derek Cormier wrote:
Hello,
I am trying to run a thread inside of a python NOX component using twisted that
listen
Hello,
I am trying to run a thread inside of a python NOX component using
twisted that listens for TCP connections. I added code to pyswitch.py to
see if I could get it working. However, I am getting this seg fault from
NOX. It seems to be failing at 'reactor.listenTCP(8007, factory)'. Any
id
Regards
KK
On 11 November 2010 16:25, Derek Cormier
wrote:
Hmm, the same thing happens with that address:
Initialized empty Git repository in
/home/derek/VirtualBoxShared/Switch/Code/nox/.git/
fatal: http://noxrepo.org/nox/info/refs not found: did you run git
update-server-info on the serve
Hmm, the same thing happens with that address:
Initialized empty Git repository in
/home/derek/VirtualBoxShared/Switch/Code/nox/.git/
fatal: http://noxrepo.org/nox/info/refs not found: did you run git
update-server-info on the server?
On 11/12/2010 03:22 AM, Upthegrove, Timothy A wrote:
Try
Hello,
Whenever I try to clone the repository using:
git clone http://noxrepo.org/noxcore
I get the following error:
Initialized empty Git repository in
/home/derek/VirtualBoxShared/Switch/Code/noxcore/.git/
fatal: http://noxrepo.org/noxcore/info/refs not found: did you run git
update-server
Hello,
I was able to build NOX, but I get some errors when running 'make
check'. I found a poster with the exact same problem as me , but I could
not find a solution
(http://www.mail-archive.com/nox-dev@noxrepo.org/msg00495.html).
Here is some of my output (everything above this is good):
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