Do we ever want to bind more than 8 multicast MAC addresses?

[Ricardo Carrano]

It seems a very relevant question.

The way collaboration over salut works now (I ask the experts to confirm
that), every application will demand a multicast mac address. And four are
already taken (01:00:5e:00:00:fb, 01:00:5e:00:00:01, 33:33:00:00:00:01 and
33:33:ff:<1>:<2>:<3>, where <1>..<3> are the last three bytes of the XO's
mac addr). I am assuming this has to be subtracted from the total of 8. So,
this would pose a limit of 4 shared applications for a given XO over a
simple mesh.

Assuming this is correct, than some questions follow.
- Is 4 a reasonable limit (is the XO capable of more in terms of processing
and memory?)
- Is this a hard limit? How hard is to increase this number and what is the
compromise?


On Thu, Apr 17, 2008 at 5:09 PM, Michael Stone <michael at laptop.org> wrote:

> Ashish comments on #6869: Firmware release - 5.110.22.p9 as follows:
>
>  Currently firmware 5.110.22.p8/9 does not support more than 8 multicast
>  mac addresses. Is there a possibility that any given point of time there
>  are more than 8 multicast address required?
>
> Is this going to be a problem for anyone?
>
> Thanks,
>
> Michael
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