[ofa-general] Re: [openib-general] Fw: [PATCH] enable IPoIB only if broadcast join finish

[Shirley Ma]

Roland Dreier <rdreier at cisco.com> wrote on 03/01/2007 12:49:02 PM:

> Hmm, I'm a little worried about this.  Could setting netif_carrier_on()
> before all multicast groups are joined cause problems for IPv6 address
> autoconfiguration and duplicate address detection?  In other words a
> node might end up choosing a duplicate address because it sends ND
> messages that don't reach the correct destination.
>
> (Also, no signed-off-by line with your patch)
>
>  - R.

Setting carrier on should be OK here. ND can't send out before the
interface is capable for sending any packet. And if ND messages can't reach
the correct destination because of multicast join failure later then the
IPv6 address is useless.

I will add the signed-off-by line.

Thanks
Shirley Ma
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