Hi,
I personally would be suggest using Openwrt for the PC Engine, unless
someone else had tried. I am currently trying to figure out why the
image is not available. The easiest way is to install Linux on the PC
Engine and put in hostpad and openvswitch. This should not be any
harder to dealing
I am not sure if OpenRadio supports OpenFlow as a primitive.
If OpenFlow is all you want, you can check here
(http://heracles.stanford.edu/drupal6/?q=node/4) and use any available
OpenFlow controller.
Regards
KK
On 5 March 2013 20:23, Nan Zhu wrote:
> http://onrc.stanford.edu/research_openradio
understand well?
>
>
> Thank you again.
>
> Regards.
>
> El 2013-02-13 13:21, kk yap escribió:
>
>> Hi Carlos,
>>
>> I did not use the bonding feature in OVS (and it did not exist back
>> when we were doing the demo). You just need an OpenFlow
b
> bond-hash-basis: 0
> updelay: 0 ms
> downdelay: 0 ms
> next rebalance: 1483 ms
> lacp_negotiated: false
>
> slave wlan1: disabled
> may_enable: false
>
> slave wlan0: disabled
> may_enable: false
>
>
> Thanks in advance.
>
> Regar
Hi Carlos,
Some comments (and hopefully helpful ones) inline.
Regards
KK
On 8 February 2013 11:24, Carlos Patricio Amigo Haering wrote:
> I want to replicate the n-casting demo with 1 Openflow switch (A PC with 4
> NIC running the Stanford software reference design), 2 Linksys WRT54GL as
> acce
use tunnels to connect
> TP-LINK AP to an OpenFlow switch.
>
> Regards,
> Humphrey
>
> On Jan 29, 2013 2:20 AM, "kk yap" wrote:
>>
>> Hi,
>>
>> Comments/replies inline.
>>
>> On 27 January 2013 19:34, Humphrey Lee wrote:
>> >
Hi,
Comments/replies inline.
On 27 January 2013 19:34, Humphrey Lee wrote:
> Hello,
>
> In the article "The Stanford OpenRoads Deployment", the "Tunnels" pass
> through the "Campus Network", does it mean it passes all traditional non-OF
> switches in the campus network?
What do you mean by all
g problem add flows based on a
> information that the controller receives.
>
>
> Regards.
>
> El 2012-11-14 11:14, kk yap escribió:
>
> Hi Carlos,
>>
>> The SNMP notification of when a host connects and disconnects is
>> indeed an indicator. But it is no
process the
> traps using some net-snmp manager for linux or something like that? How
> works?
>
> Sorry about the bunch of questions.
>
> Thanks in advance.
>
>
> El 2012-11-13 18:50, kk yap escribió:
>
>> Hi Carlos,
>>
>> I am actually a little c
Hi Carlos,
I am actually a little curious on how you want to use SNMP to locate
the host in the network. Trying to know where a wireless host is in a
network is generally hard without making some assumptions.
Also, I am not sure how SNMP works in Openwrt. We worked with native
Linux based APs.
Hi Michal,
If you are building your own device, then OVS, hostapd and a Linux
based OS would work just fine. That would give you something to show
and work with fastest. Depending on what you want for configuration,
you can augment configuration as you go along.
Regards
KK
PS>> You should prob
Hi Michelle,
No. You can use any OpenFlow enabled equipment you like. If you are
sending n-casting traffic, you might want to check that the equipment
supports that (preferably in hardware).
Regards
KK
PS>> It would help to send such email to the mailing list, in case
someone have more up-to-d
Hi,
Try removing the missing files from setup.py. That should work.
This has not been maintained for more than 1 year. I am not sure if
there is any other library that does this, or any demand for something
like this. Might be wise to limit reliance on the library. Just my
two cents.
Regards
Hi Suganya,
I would like to discourage private emails if the situation allows it.
The OpenRoads project is pretty dated at this point, with various
pieces moving at different speed. I did a quick search of the
components two months back. Attached is the document. Hope this
would at least help
I compiled on the PC Engine itself and got the error as in
> attachment while running "make".
>
> Regards !
> On Fri, Jul 27, 2012 at 5:51 PM, kk yap wrote:
>>
>> Question: where did you compile the subagents? Try doing so on the
>> PCEngine.
>&
ch file or
> directory
>
> Also, " ps -A " only shows trap_subagent & wifi_subagent running, as
> expected.
>
> Please help !
>
> Regards!
> Prabhat Tiwary
> McGill University
>
> On Thu, Jul 19, 2012 at 1:45 AM, kk yap wrote:
>>
>> > 3
/bin/snmptrap
>
> 3. I ran a tcpdump on both eth0 and lo of controller (192.168.1.207 port
> 6633), but couldn't find any SNMP packets.
>
> I am attaching here the output of tcpdump on eth0 and lo of controller; and
> the snapshot of ps -eaf | grep subagent* on AP (192.168.1.189)
>
fi subagent
> running.
>
> Also, I tried a command "/etc/snmp/keepalive_subagent -x
> /var/agentx/master". But, it won't start the keepalive subagent.
>
> Regards !
> Prabhat Tiwary
> McGill University
>
> On Mon, Jul 16, 2012 at 2:42 PM, kk yap wrote:
>
nt runs.
>
> KeepAlive subagent doesn't seem to be running.
>
> Regards !
> Prabhat Tiwary
> McGill University
>
>
>
> On Mon, Jul 16, 2012 at 12:14 PM, kk yap wrote:
>
>> Hi Prabhat,
>>
>> (Please don't drop the mailing list)
>>
>>
if hostJoinLeave s "True"
>
> So, the SNMP subagent doesn't seem to detect the connection of client.
>
> Any suggestion/help in this regard will be highly appreciated.
>
> Regards !
> Prabhat Tiwary
> McGill University
>
>
>
> On Sat, Jul 14,
Hi Prabhat,
I am cc-ing the mailing list where these things should go to.
I am not 100% sure where the problem is. Can you check that your SNMP
agents is actually detecting that a client connects? Disconnection is a
little filmsy from the WiFi side (i.e., a WiFi AP takes a long time to
detect d
Hi,
I think there is some confusion here. A WiFi device has its own
configuration, e.g., it can be put into modes like "ad-hoc",
"managed", "master", etc. I believe Chun-Yeow is referring to that.
On the issue of OVS (or the older reference software switch) working
with wireless devices, I can
>
> Thank You,
>
> Kevin Han
>
>
> On Thu, May 10, 2012 at 11:21 AM, kk yap wrote:
>>
>> Hi Kevin,
>>
>> For n-casting you will not need Hoolock. I suggest you use OVS
>> instead. That is sufficient for n-casting.
>>
>> Regards
>>
range because the
> controller was able to receive ACK for all the other message prior to
> disconnecting.
>
> Thanks,
> Regards,
> Heming
>
> From: yap...@gmail.com [yap...@gmail.com] on behalf of kk yap
> [yap...@stanford.edu]
>
arch 2012) and encountered a similar problem. I am not sure if I
> should use an older version of the image (with the old instructions) and try
> again.
>
> Thank you!
>
> Best Regards,
> Heming
>
> From: yap...@gmail.com [yap.
25:149, ack 385, win 108, options [nop,nop,TS val 40469333 ecr 1077397],
> length 24
> 11:36:59.831044 IP 192.168.1.203.6633 > 192.168.1.189.56844: Flags [P.], seq
> 125:149, ack 385, win 108, options [nop,nop,TS val 40470965 ecr 1077397],
> length 24
>
> I noticed that the
---> [Pronto switching plane port]
>
> So the ports controlled by Openflow are the Pronto switch port. Since the
> only way the AP can be accessed by the controller is through the Pronto
> switch, the OF control messages with AP would be themselves flow entries in
> th
gt; OpenRoads controller. I will be using a different controller eventually but
> I wanted to know if there was something wrong with the AP-controller
> connection to start off with.
>
> Thank you again,
>
> Heming
>
> From: yap...@gmai
he equipment you have at hand and what you are trying to
do.
>
> Sorry for asking so many questions at once as I am still relatively new with
> networking in general.
>
> Thank you for your swift response and support.
>
> Heming
>
&g
Hi Kevin,
For n-casting you will not need Hoolock. I suggest you use OVS
instead. That is sufficient for n-casting.
Regards
KK
On 10 May 2012 08:08, Kevin Han wrote:
> Hello,
>
> I'm trying to recreate the openflow n-casting demo and I have a quick
> question about the Client. The tutorial me
Hi Heming,
One way is to have only the AP in inband mode. Get your switch to the
controller, then make sure the controller is also accessible to the AP
on the datapath. We have had such a setup before. It should work.
Regards
KK
On 9 May 2012 18:42, Heming Wen wrote:
> Hi Dan,
>
> Actually,
Hi Kevin,
Yes. That controller was written for an "ancient" version of NOX.
NOX-classic should have nearly everything you need to get the demo
going, but expect to code.
The main difficulty here lies in provisioning the n-casting route,
meaning I need to install flow rules in the switches that f
Hi Heming,
Sorry for the late response.
The difference in size of the CF card should not make a difference,
esp. if you are using a larger card. Expanding the filesystem to make
use of the 4GB space should be fairly simple too---a few commands with
fdisk which Google would remember better than I
Hi,
On http://www.openflow.org/wk/index.php/LAVI,
"The latest version of LAVI uses a JSON backend, which has to be
translated to work with the binary-formatted ENVI using a translator
provided."
FYI.
Regards
KK
On 31 January 2012 18:40, Sabnis, Saurabh S wrote:
> Hi,
>
> I was trying to exten
Hi,
I would suggest you look at the GENI WiMAX basestation maintained by
Rutgers. They have an OpenFlow port for their basestation.
Regards
KK
On 15 December 2011 23:16, Mahreen Ali wrote:
> Hi,
> We are trying to deploy vertical handover in our campus.
>
> Referring to WiMAX section of the f
rted in time but the fact that the switch
will not match the packet against it and conclude that it is a match.
Regards
KK
On 3 November 2011 19:56, Vimal wrote:
> On 3 November 2011 20:50, kk yap wrote:
> > Imagine a packet for which the switch decides on an ofp_match that is
Hi,
This has been discussed before but it is probably lost in the discussion by
now.
Imagine a packet for which the switch decides on an ofp_match that is
different from what the controller decides it to be (which unfortunately
can happen with OpenFlow). The controller can sends a flow_mod and t
Hi Ramon,
(cc-ing the mailing list for such matters)
It might help for me to know what went wrong, i.e., the error
messages. I have never tried the set of code with mininet, so I can
only try to debug it along the way with the errors received. Bear
with me.
Regards
KK
On 21 October 2011 14:52
e bicast under the netapps/
>
> Which version of nox should we build and what is the purpose
> flowdb, mobiledb?
>
> Thank you very much!
>
> Best regards,
>
> Zhesen
>
> -Original Message-
> From: yap...@gmail.com [mailto:yap...@gmail.com] On Behalf Of
Hi Oliver and Zhesen,
I realized that the relevant NOX components was dropped due to server
moving, pushing functionalities upstream, etc. My apologies for the
slipup. I have updated the n-casting page. You can find the missing
components in the tarball here
(http://yuba.stanford.edu/openflow/d
Hi,
Just to satisfy my own curiosity, won't the padding require the switch
to parse the packet to insert the padding before sending it to the
switch? This seems counter-intuitive since the packet is delivered to
the controller unparsed according to the spec.
However, it might actually make sense
On 15 July 2011 09:36, Aaron Rosen wrote:
> Sorry one more thing,
>
> When this error occurs NOX does not seem to alert,
> register_for_datapath_leave(datapathleave_callback) or datapath_join()
Can you explain this one? You register for datapath leave and did not see it?
> So if in my controlle
> Is there an easy way to tell flowvisor not to use v6? Or should I
> disable it in the OS?
Should this matter? TCP works over IPv6 right?
Regards
KK
On 15 July 2011 09:21, Aaron Rosen wrote:
> Hi Nick,
>
> http://codepad.org/0doGkR8G
>
> Also the machine does have an ipv6 address for the loc
I will let Murphy and Kyriakos who are up-to-date on NOX's 64-bit
compatibility comment on that issue.
Allow me to jump to conclusion after reading the pcap dump: check the switch.
Is there any reason for the switch to send two hello, triggering two
feature requests and thus creating two feature
The switch is the one disconnected here? I assume the log is from NOX
which is complaining the peer disconnected. A tcpdump of the control
traffic might help here.
Regards
KK
On 14 July 2011 13:57, Rob Sherwood wrote:
> Usually this is the case with NOX (and AFAICT, only nox) when you have
> t
7;(wireless connection)
>> > '
>> > Client(laptop)
>> > So the idea is to connect swith1 to the controller via a wire... and
>> > switch2
>> > would connect to the controller via a wireless connection to
>> > switch1(inband).
>> >
Hi Alex,
Would you mind explaining with a diagram? I do not understand what you mean?
Regards
KK
On 14 July 2011 11:32, Alexey Bogaevskiy wrote:
> Hello,
> I had a general question on whether a particular set-up is possible...
> I am trying to set up a AP that is connected to the controller vi
2011 11:14, man monaco wrote:
> Hi KK,
>
> When i run keepalive_subagent, i don't see neither error nor successful
> messages.
>
> The subagents (keepalive, trap, wifi) are loaded automatically when the AP
> reboots, i don't load them manually.
>
> Landy
>
in/master
> remotes/origin/release/0.8.9
> remotes/origin/release/0.9.0
> remotes/origin/release/1.0.0
> remotes/origin/spec1.1
>
> Landy
>
>
> --- On *Mon, 7/11/11, kk yap * wrote:
>
>
> From: kk yap
> Subject: Re: [openflow-discuss] keepalive_subagent
Two things to check.
* Which version of OpenFlow reference switch are you running?
* Is your network up? Seems like the error is saying your wlan1 is down.
Regards
KK
On 11 July 2011 09:44, man monaco wrote:
> Hi,
>
> I installed Openroads recently, everything seems to work as required but i
enflow enabled.
>
> note that i used the same switch without problems but the AP was WRT54G
> instead of PC Engine.
>
> Thank You,
> Landy
>
>
>
>
> --- On *Thu, 6/30/11, kk yap * wrote:
>
>
> From: kk yap
> Subject: Re: [openflow-discuss] OpenRoads snm
Hi,
You probably want to add dl_type=0x0800. FYI.
Regards
KK
On 5 July 2011 16:26, Ali Khalfan wrote:
> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA512
>
> I do the following command on dpctl 1.0.0
>
> dpctl add-flow tcp:127.0.0.1:6634
> dl_dst=00:00:00:00:00:06,nw_src=10.0.0.4/32,tp_src=40,
;
> The question now is: will the* *setup procedure change in *OpenRoads:SNMP*
> wiki
> page when changing to of1.0-noxdestiny branch?
>
>
> Thank you,
> Landy
>
>
> --- On *Wed, 6/29/11, kk yap * wrote
>
> From: kk yap
>
> Subject: Re: [openflow-discu
>
> Any idea what's wrong or where to download these files from.
>
> Thank You
>
>
>
>
> --- On *Mon, 6/27/11, Yiannis Yiakoumis * wrote:
>
>
> From: Yiannis Yiakoumis
> Subject: Re: [openflow-discuss] OpenRoads snmp setup page
> To: "kk yap"
Hi Landy,
This question would be Openwrt specific. The instructions for OpenRoads
(OpenFlow Wireless) are for the PCEngine based APs.
Yiannis might know the Openwrt stuff best here. From what I know, the short
answer is yes. And the longer answer is you should expect some work to get
there.
R
Hi Landy,
I am not sure if mininet support wireless emulation. The last time I asked,
the answer was no. You can ask on mininet-discuss mailing list.
OpenFlowVMS is a deprecated package, so I would discourage that.
One other way to get started is to use Openwrt with OpenFlow, but that would
in
Hi Landy,
As explained (probably deep in the details), some configuration and event
are triggered using SNMP.
For example, for a switch to know of a client in OpenFlow, we have to look
at packet-in from the client. This can take a while, esp. for clients that
does not perform DHCP upon associati
Hi,
Just wanted to bring this up to archive the issue for consideration
later and as a cautionary note to those dealing with ARP using
OpenFlow. The specific issue pertains to clarity and consistency of
the OpenFlow specs.
In OpenFlow (up till v1.1), we allow IP addresses in ARP to be match
usin
And I did not know that. Fantastic! Thanks! This will help all of us greatly.
Regards
KK
On 2 June 2011 15:19, Ben Pfaff wrote:
> On Thu, Jun 02, 2011 at 01:30:31PM -0700, kk yap wrote:
>> Is there any reason why ovs-ofctl does not work for you (e.g., you
>> don't use ovs
Hi,
Starting with a rant: I believe this is related (or the same) as the
thread on nox-dev
(http://noxrepo.org/pipermail/nox-dev/2011-June/007611.html). It
might be advisable not to cross-post questions.
To be clear, LAVI is a GUI backend in NOX. And nox-gui.py and ENVI
are the front end GUI.
Hi Ali,
First thing (and I think I have said to you a few times now),
OpenFlowVMS is a deprecated package. Take a look at mininet.
OpenFlowVMS uses a read-only filesystem so that all the VM can share
an image. So, you have two choice. Make VMS run in read-write mode
(i.e., remove the -snapshot
Hi Ward,
Won't this all depends on the TCP state the connection is in when the
message is sent? E.g., is Nagle bring turned on? What is the window
size? And so on. If you want, one way to understand this better is to
look at the messages on wireshark.
Regards
KK
PS>> OpenFlow ia a protocol th
Hi,
The choice is yours.
To do a synchronous call, send the flow_mod followed up a
barrier_request. You will get the barrier_reply back.
To do asynchronous calls, just send the flow_mod and wait for error
messages. The error messages should carry the same xid (transaction
id) as the flow_mod a
t Yiannis would know.
Regards
KK
On 16 May 2011 15:08, Rob Sherwood wrote:
> I'm not really sure what you're asking: `dhclient tap0` doesn't do the
> right thing for you? Or, are you asking for the interface to come up
> at boot time?
>
> - Rob
> .
>
>
>
Hi,
I need to control to a remote controller and therefore need to config
an IP address for the AP on tap0. Can I config tap0 to receive a
dynamic IP address? If yes, how?
Thanks.
Regards
KK
___
openflow-discuss mailing list
openflow-discuss@lists.st
Hi Ali,
I have been trying to get to this and realized this is getting pushed
back more and more on my plate. So short answers
> What do you mean by checking the flow entries of the switches???
Use dpctl dump-flows to see what flows are in the switches. You can
bring up the terminals for t
Hi Max,
Something like this?
http://noxrepo.org/noxwiki/index.php/Main_Page
http://noxrepo.org/~yapkke/doc/
Regards
KK
On 27 April 2011 00:15, Max Ott wrote:
>
> On 26/04/2011, at 4:20 PM, kk yap wrote:
>
>> Hi Max,
>>
>> Can you elaborate on what you mean by pysw
Hi Max,
Can you elaborate on what you mean by pyswitch being aware or unaware
of VLAN? Do you expect the switch to rewrite the VLAN so that hosts
on different VLAN can ping each other?
Regards
KK
On 25 April 2011 22:44, Srini Seetharaman wrote:
> Hi Max
> This mail is more appropriate for the
Oops. my fault. So, we are down to ofps as choice?
Regards
KK
On 14 April 2011 09:10, Justin Pettit wrote:
> On 4/14/11 8:55 AM, "Ben Pfaff" wrote:
>
>>On Thu, Apr 14, 2011 at 08:29:12AM -0700, kk yap wrote:
>>> The only 1.1 compatible software switch out the
p://openvswitch.org/pipermail/announce/2011-April/36.html).
Can you elaborate what you mean by that? Thanks!
Regards
KK
On 14 April 2011 08:55, Ben Pfaff wrote:
> On Thu, Apr 14, 2011 at 08:29:12AM -0700, kk yap wrote:
>> The only 1.1 compatible software switch out there is OVS
Hi Wang,
cc-ing the mailing list for expert advices from those who knows better.
git://gitosis.stanford.edu host the reference implementation.
Honestly, I don't think that would be maintained. Moreover, OpenFlow
1.1 is already released, and there is no implementation for OpenFlow
1.1 in that ref
Hi Ali,
If the driver for the dongle works on Linux, you should be fine.
However, you want to note that some dongle does interfere with
built-in WiFi of laptops, so you may experience some difficulties
there. We have not tried the TP-Link dongle ourselves, so you are on
your own.
Regards
KK
On
Hi Richard,
The requirements depends on if you want a physical setup. If yes, you
need two access points and a laptop and a peer for the laptop. If no,
you can try to use the deprecated package OpenFlowVMS to emulate a
handover. Preferably mininet should be usable for this purpose. I am
not sur
Hi Yang Yu,
Just want you know that many of us do subscribe to multiple of the
mailing lists on which you are asking the same question.
I repeat myself that you should write a controller component for this
functionality from what I believe it available in the public domain.
"routing" in NOX is a
Hi Fahad,
This is a good place to start reading.
http://wiki.virtualsquare.org/wiki/index.php/VDE. Hope this get you
started.
Regards
KK
On 1 March 2011 16:43, Fahad Rashid wrote:
> Hi KK,
>
> I am new to openflow. i am doing work on wirefilter.I wanted to ask
> how can we log into the w
Hi Prachi,
It is a software. You can refer to the url in the paper (http://noxrepo.org
).
Regards
KK
On 1 March 2011 00:22, prachi dhamorikar wrote:
> Hi KK,
>
> Is NOX controller used in Openroads is a software program or is it a
> separate box, like a hardware component which I have to conf
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