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Date: Thu, 11 Jun 2009 14:45:28 +0300 From: Or Gerlitz <or.gerlitz@...il.com> To: David Miller <davem@...emloft.net> Cc: rdreier@...co.com, cl@...ux-foundation.org, netdev@...r.kernel.org, yosefe@...taire.com Subject: Re: IPoIB: Fix multicast packet drops before join is complete On Wed, Jun 10, 2009 at 3:01 PM, David Miller<davem@...emloft.net> wrote: > From: Or Gerlitz <or.gerlitz@...il.com> >> for --unicast-- the same problem [...] will come into play under both Ethernet and IB, >> so the user is limited by the socket buffer len and the neigh unres_qlen systcl. > But this generally does not cause problems via ARP, why might that be? > Because resolution is 1) rare 2) quick. Both of which do not apply to this IPoIB case. To be precise, I don't see why ARP resolution is more rare then joining to a multicast group on behalf of a sender in IPoIB, they both happen on the first and if/when the kernel deletes the neighbour. > Sure, but that's just pushing the problem around instead of solving it. Let me think about it more. Or. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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