> On Fri, 12 Jul 2013 14:26:32 +0530 > Jagdish Motwani <jagdish.motw...@elitecore.com> wrote: > >> Hi list, >> I am facing a strange issue with igb driver. >> >> If i set my mtu to 1000, then ping -s 1200 does not work. (the same >> thing works with e1000e interface) >> >> On further debugging, i reached >> http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ec54d7d6e40b04c16dfce0e41e506198a20c8645 >> >> Reverting the patch, i was able to ping. >> >> The commit message states that it is a fix for skb_over panic. Is >> this fix still required? >> >> Regards, >> Jagdish Motwani >> > > Whether device receives packets bigger than MTU is undefined. > It probably should never work but for some devices and sizes it does. > Most devices size the receive buffer based on the MTU + VLAN header. > If packet is bigger than that it is usually dropped. > Thanks Stephen i understand your point. But still i dont like the idea of using Maximum Transmission Unit(MTU) to limit the maximum size of receive packet.
Regards, Jagdish Motwani ------------------------------------------------------------------------------ See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk _______________________________________________ E1000-devel mailing list E1000-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
