[kolla][ovs][networking] LLDP support within an internal network?

Laurent Dumont laurentfdumont at gmail.com
Sat Oct 19 18:53:59 UTC 2019

I thought there might have been some weird magic within OVS to flood the
LLDP frames. Thanks!

On Sat, Oct 19, 2019 at 2:06 PM Radosław Piliszek <
radoslaw.piliszek at gmail.com> wrote:

> Hey Laurent,
> LLDP is terminated at the neighbor.
> In a physical setup hosts would see the switch and switch would see the
> hosts but hosts would not see each other.
> That's LLDP for you.
> For whatever purpose, you probably want to use a different discovery
> protocol.
> PS: This is very irrelevant to Kolla.
> Kind regards,
> Radek
> sob., 19 paź 2019 o 19:09 Laurent Dumont <laurentfdumont at gmail.com>
> napisał(a):
>> Hey everyone,
>> Somewhat of a random question, but is there any built-in support within
>> OVS to carry LLDP traffic between instances running on the same Tenant
>> network? I know that linux-br will eat the LLDP traffic by default.
>> So far, enabling LLDP on the port "qbr" allows the hypervisor to see the
>> instances hosted on that hypervisor.
>> The instances can see the hypervisor as well. That said, instances cannot
>> see each other. All are residing within the same L2 network and are able to
>> have L2 between each other. I am seeing the LLDP packets from the
>> hypervisor arriving on the instance internal interface but nothing from the
>> other instances. I am seeing the outgoing LLDP packets on each interfaces
>> as well.
>> Let me know if anything else is required.
>> Thanks!
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