[ovs-discuss] Fwd: lldp support?

Haris Rotsos cr409 at cam.ac.uk
Sat Jul 9 16:22:05 UTC 2011


On 9 July 2011 17:13, Ben Pfaff <blp at nicira.com> wrote:

> On Sat, Jul 09, 2011 at 09:13:48AM +0100, Haris Rotsos wrote:
> > Currently I am trying to use ovs with the topology module of nox in order
> to
> > use the lldp protocol to discover devices connected to the switch. I was
> > wondering if this is supported in the code of openvswitch . Is it
> possible
> > to enable such a protocol in openvswitch code and force it send updates?
> I
> > guess that using openlldp daemon could solve my problem, but I was
> wondering
> > if this is supported by the code of the switch too.
>
> OVS doesn't have built-in LLDP support.
>

I tried lldpd and seems to work sufficiently in paraller with openvswitch. I
think that this solves my problem.


> > The second problem I noticed is that the nox packet send to the switch is
> > not recognized by the switch. on every packet out message I see on the
> log
> > of the ovs-vswitchd
> >
> >  Jul 09 09:07:39|01304|dpif|WARN|system at br0: execute 1 failed (Invalid
> > argument) on packet 00:04:23:b1:57:24 > 01:23:20:00:00:01, ethertype
> Unknown
> > (0x88cc), length 34:
> >         0x0000:  0207 0400 0423 b157 2404 0302 0001 0602
>  .....#.W$.......
> >         0x0010:  0078 0000
>
> That's a strange message.  What version of OVS are you using?
>

I am using the git master branch of the code.

-- 
Charalampos Rotsos
PhD student
The University of Cambridge
Computer Laboratory
William Gates Building
JJ Thomson Avenue
Cambridge
CB3 0FD

Phone: +44-(0) 1223 767032
Email: cr409 at cl.cam.ac.uk
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