[Nfd-dev] NFD permanent faces

[Alex Afanasyev]

On Mon, Jun 18, 2018 at 1:25 PM, Davide Pesavento <davide.pesavento at lip6.fr>
wrote:

> On Mon, Jun 18, 2018, 1:01 PM Junxiao Shi <shijunxiao at email.arizona.edu>
> wrote:
>
>> Hi Alex
>>
>>
>>> [Alex] Permanent multicast faces. Do we have them?
>>>
>>> This is a follow up to previous email discussion.  While multicast faces
>>> are marked permanent, I don't think they are permanent for real, I think
>>> they are currently disappear when interface is gone and re-appear when
>>> interface is back (wifi re-connects).  Or I have a wrong understanding of
>>> the current behavior.
>>>
>>>
>> Yes, see #4026 and #3521.
>>
>
>
> Are we talking about Ethernet multicast or UDP multicast? There's a
> substantial difference between them, namely, the local interface IP address
> can appear/disappear/change over time, which affects UDP but not Ethernet.
>

This one is about UDP multicast.  Did we successfully tested Ethernet
multicast with infrastrastructure-mode WiFi? If so, that would be a
solution in this case, as I'm not sure what kind of logic we can have to
preserve UDP multicast faces (e.g., we may end up with constantly growing
set of faces, as we getting connected to different WiFi networks).


>
> Thanks,
> Davide
>
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