[ovs-dev] asking the example to use openflow protocol to limit the flow rate in openvswitch
trinh tri
no8bk at yahoo.com
Wed Jul 4 03:53:50 UTC 2012
Hi Mr Justin!
I would like to ask about export the netflow from openvswitch to a remote ubuntu computer:
netflow
[ovs]=========>[ubuntu-pc]
Following the manual, I configure netflow exporter like this
[ovs]:
$./ovs-vsctl -- set bridge br0 netflow=@nf -- --id=@nf create NetFlow targets=\"161.200.90.74:5566\" active-timeout=30
$./ovs-vsctl list netflow
_uuid : 6741d14c-f382-4a03-82ff-cb9339a54758
active_timeout : 30
add_id_to_interface : false
engine_id : []
engine_type : []
external_ids : {}
targets : ["161.200.90.74:5566"]
But when I monitor the output port using tcpdump:
$tcpdump -i eth0
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), capture size 96 bytes
I don't see any netflow packets sending out of my eth port to [ubuntu].
I would like to ask, whether there is any wrong with my configuration?
How to check whether netflow packets are sent out of openvswitch?
Thank you very much
Trinh Minh Tri
-------------------------------------------------
PhD Student, Department of Electrical Engineering
Chulalongkorn University, Bangkok 10330, Thailand.
Phone:0824566602
Email: no8bk at yahoo.com
________________________________
From: trinh tri <no8bk at yahoo.com>
To: Justin Pettit <jpettit at nicira.com>
Cc: "dev at openvswitch.org" <dev at openvswitch.org>
Sent: Monday, July 2, 2012 12:56 PM
Subject: Re: [ovs-dev] asking the example to use openflow protocol to limit the flow rate in openvswitch
Thank you very much, Mr Pettit!
I have finished setting up the system with openvswitch and openflow. Now trying to configure queue on openvswitch.
Trinh Minh Tri
-------------------------------------------------
PhD Student, Department of Electrical Engineering
Chulalongkorn University, Bangkok 10330, Thailand.
Phone:0824566602
Email: no8bk at yahoo.com
________________________________
From: Justin Pettit <jpettit at nicira.com>
To: trinh tri <no8bk at yahoo.com>
Cc: "dev at openvswitch.org" <dev at openvswitch.org>
Sent: Friday, June 29, 2012 10:01 AM
Subject: Re: [ovs-dev] asking the example to use openflow protocol to limit the flow rate in openvswitch
ovs-openflowd has been deprecated in favor of ovs-vswitchd. If you're not using a distribution that already has OVS support built in, the INSTALL.Linux file in the OVS distribution contains a instructions for getting it started.
--Justin
On Jun 28, 2012, at 10:51 AM, trinh tri wrote:
> Dear Mr Justin!
>
> Yep! I want to connect openvswitch to NOX and let NOX dynamically control the bandwidth providing to each flow.
> I viewed from some website, they use this command for the openvswitch to connect to NOX:
> ./utilities/ovs-openflowd dp0 --datapath-id=0000004E46324304 tcp:192.168.0.100 port 6633 --out-of-band
> But in the new version of openvswitch (1.6.1), I cannot find the tool ovs-openflowd. In your last email I think you give me solution of connecting openvswitch to NOX by ovs-ofctl and ovs-vsctl. Could you help me to write what command is equivalant to the above commands?
>
> Thank you very much
> Trinh Minh Tri
> -------------------------------------------------
> PhD Student, Department of Electrical Engineering
> Chulalongkorn University, Bangkok 10330, Thailand.
> Phone:0824566602
> Email: no8bk at yahoo.com
> From: Justin Pettit <jpettit at nicira.com>
> To: trinh tri <no8bk at yahoo.com>
> Cc: "dev at openvswitch.org" <dev at openvswitch.org>
> Sent: Thursday, June 28, 2012 12:18 PM
> Subject: Re: [ovs-dev] asking the example to use openflow protocol to limit the flow rate
in openvswitch
>
> What do you mean by hands-on? From NOX? I don't think it speaks OVSDB. I'd probably start off by using ovs-vsctl and ovs-ofctl to manually configure what you want. Translating from ovs-ofctl to OpenFlow should be pretty straight-forward, since the commands map pretty directly to OpenFlow. For OVSDB, you could configure ovsdb-server so that you can run ovs-vsctl on the NOX system and connect over TCP/SSL. Or you could do it programmatically by looking at some of the other programs in the OVS distribution that make use of the database.
>
> --Justin
>
>
> On Jun 28, 2012, at 1:08 AM, trinh tri wrote:
>
> > Thank you very much Mr. Petit for the prompt reply.
> > Do you know any hand-on example to implement that?
> >
> > Trinh Minh Tri
> > -------------------------------------------------
>
> PhD Student, Department of Electrical Engineering
> > Chulalongkorn University, Bangkok 10330, Thailand.
> > Phone:0824566602
> > Email: no8bk at yahoo.com
> > From: Justin Pettit <jpettit at nicira.com>
> > To: trinh tri <no8bk at yahoo.com>
> > Cc: "dev at openvswitch.org" <dev at openvswitch.org>
> > Sent: Thursday, June 28, 2012 11:49 AM
> > Subject: Re: [ovs-dev] asking the example to use openflow protocol to limit the flow rate in openvswitch
> >
> > The configuration of QoS is done
through the OVSDB protocol, which handle switch-level configuration. You can then use OpenFlow to direct flows to particular queues that you've configured through OVSDB. There are C and Python bindings to OVSDB (but I don't think NOX makes use of them) or you can use ovs-vsctl as a CLI interface to OVSDB.
> >
> > There's an example of configuring QoS towards the end of the ovs-vsctl man page. The ovs-ofctl man page describes the enqueue and set_queue actions that can be used to direct flows to the queues you've configured.
> >
> > --Justin
> >
> >
> > On Jun 28, 2012, at 12:43 AM, trinh tri wrote:
> >
> > > Dear openvswitch dev!
> > >
> > > I'm trying to implement a system which can dynamically control the flow rate limiting of openvswitch. And would like control that rate from NOX controller via openflow protocol.
>
> >
> > > Could you suggest me how to implement that system and is there any example about that system to follow?
> > >
> > > Thank you very much
> > > Trinh Minh Tri
> > > -------------------------------------------------
> > > PhD Student, Department of Electrical Engineering
> > > Chulalongkorn University, Bangkok 10330, Thailand.
> > > Phone:0824566602
> > > Email: no8bk at yahoo.com
> > > _______________________________________________
> > > dev mailing list
> > > dev at openvswitch.org
> > > http://openvswitch.org/mailman/listinfo/dev
> >
> >
> >
>
>
>
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