Hi
When setting up a flow entry (I am using mininet and NOX from HOTI
tutorial), it says:
00065|openflow-event|ERR:received Openflow error packet from
dpid=000c: type=3, code=1, 80 bytes of data
00324|openflow-event|ERR:received Openflow error packet from
dpid=0013: type=3,
The link for spanning_tree module:
http://www.mail-archive.com/nox-dev@noxrepo.org/msg00167.html
http://www.openflowswitch.org/wk/index.php/Basic_Spanning_Tree
I plan to use spanning_tree so that routing module can be used for a network
of loops.
Thanks.
On Sun, Sep 19, 2010 at 11:26 PM, Guanyao
The problem is solved. I named the file as meta.jason. That was the
problem.
Thank you Kyriakos.
On Sun, Sep 19, 2010 at 11:26 PM, Guanyao Huang gyhu...@ucdavis.edu wrote:
Hello
Sorry to bother others. I am using the latest NOX module from:
http://www.openflowswitch.org/foswiki/bin/view
Hello
Sorry to bother others.
http://noxrepo.org/wp/ seems outdated.
I have a new module and I want to compile it. I remember the only files I
need to change are: configure.ac.in, nox.xml and meta.xml inside my module
folder. However, it is not working. When make, it ignores my module. It
never
Hello
Sorry to bother others.
I am testing my software openflow according to
http://www.openflowswitch.org/foswiki/bin/view/OpenFlow/Deployment/HOWTO/Virtual
I also run ./nox_core -i ptcp:6633 routing
After run vms-start.py -u 2hosts-2ofsw.vms.xml, 4 windows pop up for 2
hosts and 2 switches.
It works. Thank you.
On Tue, Jun 8, 2010 at 1:09 PM, kk yap yap...@stanford.edu wrote:
As mentioned, the list is ordered. So, I swapped ip and xterm in the
host definition, and it works now. Attached is the updated file.
Regards
KK
On 8 June 2010 13:02, Guanyao Huang gyhu...@ucdavis.edu
Sorry. I dont quite understand. I am already compiling under
./nox/build. build is a new directory. It is not source tree, right? I
am following instructions from the webpage. First I mkdir build, then
I go into it, ../configure, and then I make in it.
On Mon, May 24, 2010 at 8:16 AM, Martin
Hi
Sorry to bother others. My program has serious problem. Here is the
dump under gdb. I am wondering has anyone seen something similar
before. Maybe this is known bug? Any suggestion would be helpful.
*** glibc detected ***
/home/sraza/noxcore/build/src/.libs/lt-nox_core: malloc(): memory
.
On Mon, Apr 5, 2010 at 4:12 AM, kk yap yap...@stanford.edu wrote:
Hi Guanyao,,
Did you check for datapath_leave_event and make sure that you do not
send commands to invalid datapathid? Seems like that is the problem.
Regards
KK
On 4 April 2010 21:41, Guanyao Huang gyhu...@ucdavis.edu wrote:
Hi
Hi
Sorry to bother others. My program breaks with datapath leaves the
network (HP switch). There are some errors returned by the
send_openflow_command, which I dont understand. Is there any document
on the meaning of the error?
00079|openflow|WARN:stream: send error: Broken pipe
message that had
the ofp_match structure set to specify the in_port to match on.
Does that help?
Also, including the list helps archive some of these answers, so is
there a reason you did not include the list?
- Rob
.
On Fri, Mar 26, 2010 at 9:21 AM, Guanyao Huang gyhu...@ucdavis.edu
I think some document of authenticator module is very necessary.
The newest version of authenticator module seems changed a lot, but
the code for routing module remains the same.
For example, why there are many events defined in host_event.hh, why
there are many entries, bindings defined in
Hi
Sorry to bother others.
My program needs to tcpreplay some packets between switches. Since the
trace is from raw IP, I converted them to ethernet packets. However,
some of the original packets are truncated, and I found these packets
are forwarded but missed.
If I tcpreplay them and tcpdump the
you're using.
2. That is not expected behavior and likely just depends on what
information that authenticator/routing modules have discovered so far.
Natasha
On Wed, Mar 3, 2010 at 2:51 PM, Guanyao Huang gyhu...@ucdavis.edu wrote:
Sorry to bother you again.
I have two issues regarding both
for all the fields?
On Tue, Mar 9, 2010 at 5:58 PM, Yu-Chieh Chou bouyu...@gmail.com wrote:
Sorry, I did not explain very clearly. I use the command dpctl
dump-aggregate on OpenFlow switch works correctly.
But the aggregate value on NOX component monitor always get zero.
2010/3/10 Guanyao Huang
. To prevent loops, OpenFlow makes you
explicitly use the action output:OFPP_INPORT if you want to send back
out the port a packet came in on.
Does that help?
- Rob
.
On Thu, Mar 4, 2010 at 11:24 AM, Guanyao Huang gyhu...@ucdavis.edu wrote:
Hello
My program shows error of type2 code4. From
Hi
Sorry to bother others.
In my program the datapath leaves network again. This time it seems a
little different:
00341|openflow|WARN:stream: no response to inactivity probe after 15
seconds, disconnecting
00342|nox|WARN:stream: disconnected (Protocol error)
Datapath leave, f7:ca:e4:00:01:90
2010 21:42, Guanyao Huang gyhu...@ucdavis.edu wrote:
Which part defines the time interval for this echo request? I guess
enlarger it will temporarily handle my problem.
On Mon, Mar 1, 2010 at 9:38 PM, kk yap yap...@stanford.edu wrote:
Hi Guanyao,
NOX periodic checks if the switch is still
Hi
I find that the topology module doesnt support the case where there
are two links between two switches. But Discovery module support this
situation. Is there a particular reason for this?
Thanks.
___
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. Finally that points to LinkSet that is a lis to src and dst
ports. That information is preserved from what I can see.
Regards
KK
On 26 February 2010 12:13, Guanyao Huang gyhu...@ucdavis.edu wrote:
Hi
I find that the topology module doesnt support the case where there
are two links between two
Hi
Sorry to bother others.
In order to establish packet forwarding between switches, the rule
should be sent to switch before the first packet is sent back. The
race condition is the packet is sent back and even forwarded by the
first switch, but it doesnt find a rule in the second switch although
14:33, Guanyao Huang gyhu...@ucdavis.edu wrote:
Hi
Sorry to bother others.
In order to establish packet forwarding between switches, the rule
should be sent to switch before the first packet is sent back. The
race condition is the packet is sent back and even forwarded by the
first switch
barrier function returns, we install A. That
way, we are sure B and C has the entries before sending the flow_mod
to A.
Hope I am clear.
Regards
KK
On 8 February 2010 19:39, Guanyao Huang gyhu...@ucdavis.edu wrote:
I heard this from my supervisor. I also think this is not resolved,
because
Hello
Sorry to bother others.
I can't understand the code of authenticator module, but I need a small favor.
I understand that if one mac is dst address, this mac address should
first be authenticated. After a while, this mac will timeout and
expire.
My current program wants to extend this timeout
descriptor)
Datapath leave, f7:ca:e4:00:00:64
Datapath leave, f7:ca:e4:00:01:f4
Datapath leave, f7:ca:e4:00:00:c8
Datapath leave, f7:ca:e4:00:01:2c
Datapath leave, f7:ca:e4:00:01:90
On Tue, Feb 2, 2010 at 9:33 PM, Ben Pfaff b...@nicira.com wrote:
On Tue, Feb 02, 2010 at 09:23:52PM -0800, Guanyao
I am using HP switch with openflow 0.8.9
On Wed, Feb 3, 2010 at 1:02 PM, Ben Pfaff b...@nicira.com wrote:
Normally the OpenFlow reference implementation and Open vSwitch log
a message when a connection closes.
On Wed, Feb 03, 2010 at 12:59:16PM -0800, Guanyao Huang wrote:
Hi
What
I guess it depends on whether dpctl dump-aggregate works correctly.
My problem with it is that sometimes it can not aggregate flows
according to the specified wildcard. I guess this depends on
configuration of switches.
On Tue, Feb 2, 2010 at 5:57 PM, Rodrigo Braga rodrigog...@gmail.com wrote:
I
Hello
Sorry to bother others.
My program is to redirect flows according to some metric in a topology
of loops, 5 switches. I need to accurately query flow sizes from
counters. For one flow, I will query its size from the egress switch.
I find that:
1, Querying sizes from the ingress switch has
Hello
Sorry to bother others. My program is redirecting traffic of 5
switches. Each switch tcpreplay a trace with speed=0.01mbps. There are
at maximum 400 flow entries per switch. This is very small. However,
the program shows some datapath leaves:
00016|openflow|WARN:stream: connection closed by
On 1/26/10 1:09 PM, Guanyao Huang wrote:
Hi
I am running on my own nox module on a topology of 5 switches. I find
two phenomena:
1, The byte number of every packet read from statistics is always 4
bytes larger than the real size.
If pcap shows the packet is of size N, ./dpctl dump-flows
Hi
I am running on my own nox module on a topology of 5 switches. I find
two phenomena:
1, The byte number of every packet read from statistics is always 4
bytes larger than the real size.
If pcap shows the packet is of size N, ./dpctl dump-flows will show a
size of N+4. So, if we query
Hi
I have two questions.
1, why have people developed both individual flow statistics query and
aggregated flow statistics query, since both of them have wildcard to
aggregate flows.
My supervisor suggested that for individual flow statistics query, if
one flow in flow table is matched, then the
Sorry, I was saying toroki switch and NEC switch, not sure about HP switch.
On Fri, Jan 22, 2010 at 3:04 PM, Guanyao Huang gyhu...@ucdavis.edu wrote:
Hi
I have two questions.
1, why have people developed both individual flow statistics query and
aggregated flow statistics query, since both
This question might be too naive. If I want to specify nw_src and
nw_dst, and make other fields wildcards, shouldn't the code be as
follows:
tmpmatch.wildcards=htonl( OFPFW_NW_PROTO | OFPFW_DL_VLAN |
OFPFW_DL_SRC | OFPFW_DL_DST | OFPFW_DL_TYPE | OFPFW_TP_SRC |
OFPFW_TP_DST );
Is there anything
| OFPFW_DL_VLAN |
OFPFW_DL_SRC | OFPFW_DL_DST | OFPFW_DL_TYPE | OFPFW_TP_SRC |
OFPFW_TP_DST );
memcpy(ofsr-match, tmpmatch, sizeof(ofp_match));
send_openflow_command(thisdp, ost-header, false) ;
On Wed, Dec 23, 2009 at 1:01 AM, Guanyao Huang gyhu...@ucdavis.edu wrote:
This question might
failed with
32:Broken pipe.
00018|openflow|WARN:stream: receive error: Bad file descriptor
00019|nox|WARN:stream: disconnected (Bad file descriptor)
Datapath leave, f7:ca:e4:00:00:64
What does Broken pipe usually imply? I cant find where it is from.
On Tue, Dec 22, 2009 at 10:41 AM, Guanyao Huang
be said with certainty.
Regards
KK
2009/12/23 Guanyao Huang gyhu...@ucdavis.edu:
Some general questions:
Will the datapath actively leave the network if it is burdened? Or
only link_timeouts at discovery module will make them leave.
My program has following messages:
00016|openflow
-- Forwarded message --
From: Guanyao Huang gyhu...@ucdavis.edu
Date: Wed, Dec 23, 2009 at 3:17 PM
Subject: Re: [nox-dev] A general question regarding discovery module
To: Martin Casado cas...@nicira.com
In verbose model:
00015|openflow|WARN:stream: send error: Broken pipe
I can have a try, but I dont expect the new algorithm will solve my problem. :)
On Mon, Dec 21, 2009 at 12:36 AM, Rob Sherwood
rob.sherw...@stanford.edu wrote:
Hello Guanyao,
I don't work for Nicira, but there are some well known scaling issues
with the algorithm used by the discovery
I assume LLDP packets are sent periodically. If there is no LLDP, what
will be the most possible reason? The controller or the switch is too
busy?
On Thu, Dec 17, 2009 at 3:07 PM, Martin Casado cas...@nicira.com wrote:
Discovery times out links when no LLDP packets have been received over some
It seems this module will periodically construct the topology. I dont
know why it will periodically time_out the links. I want to know in
what situations the links will time_out.
Thanks.
___
nox-dev mailing list
nox-dev@noxrepo.org
We are recently confirmed the switch itself has some bug, it cant
collect byte statistics. Thanks all.
On Thu, Dec 10, 2009 at 6:02 PM, Guanyao Huang gyhu...@ucdavis.edu wrote:
Hello
Sorry to bother others. I one question regarding querying flow
statistics from switches through struct
are you using?
Thanks, Keith
On Sun, 13 Dec 2009 11:17:01 -0800, Guanyao Huang gyhu...@ucdavis.edu wrote:
I dont think the flow table entries expire quickly, because I find out
only initially the new packet is sent to the controller. Later packets
already have entries.
It seems I dont
...@nicira.com wrote:
I apologize if you stated this already and I missed it, but what
versions NOX and switch software are you using?
Thanks, Keith
On Sun, 13 Dec 2009 11:17:01 -0800, Guanyao Huang gyhu...@ucdavis.edu wrote:
I dont think the flow table entries expire quickly, because I find
Hello
Sorry to bother others. I one question regarding querying flow
statistics from switches through struct ofp_stats_request. I am using
nox 5.0
In my topology I periodically ping between hosts. However, I find the
packet_count and byte_count from the switch are always 0. I am
confirmed that I
.
Is this some setting problem?
On Thu, Dec 10, 2009 at 6:02 PM, Guanyao Huang gyhu...@ucdavis.edu wrote:
Hello
Sorry to bother others. I one question regarding querying flow
statistics from switches through struct ofp_stats_request. I am using
nox 5.0
In my topology I periodically ping between hosts
Hi
Sorry to bother others.
I find that there is one routing module under netapps directory. It
can route the flows between openflow switches.
My work now is to write my own routing module which uses dijstra
protocol to find the shortest path (not all-pairs shortest path
algorithm). I have a
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