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Date: Fri, 21 Dec 2012 10:34:39 -0800 From: Eric Dumazet <erdnetdev@...il.com> To: Rick Jones <rick.jones2@...com> Cc: David Miller <davem@...emloft.net>, netdev <netdev@...r.kernel.org> Subject: Re: [RFC] IP_MAX_MTU value On Fri, 2012-12-21 at 10:19 -0800, Rick Jones wrote: > If you go beyond the protocol limit of an IPv4 datagram, won't it be > necessary to start being a bit more conditional on IPv4 vs IPv6? > This IP_MAX_MTU is really an IPv4 thing (static to net/ipv4/route.c) > > 99 times out of 10 I will assert that faster is better, but do we need > another 50% for UDP over loopback with that large a message size? Well, I only didnt understand why sending 65507 UDP messages had to use fragments. I didnt care of performance at this point, only tried to have an reasonable explanation. It turns out its a strange limitation. -- 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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