On 07/14/2013 11:43 PM, Jagdish Motwani wrote:
> On 07/13/2013 09:17 PM, Ben Greear wrote:
>> On 07/13/2013 01:29 AM, jagdish.motw...@elitecore.com wrote:
>>> Yes John,
>>>       When i do the ping request, i can see the 2 ip fragments. Its the
>>> ping reply that is dropped by my igb interface.
>>
>> Is the replay also 2 packets?  If not, the peer machine may have wrong MTU.
>>
>> Thanks,
>> Ben
>>
> You are right Ben. Peer machine has MTU=1500 greater than my MTU=1000.
>
> So the reply is a single packet (which is bigger than my MTU).
>
> My problem is : By setting an MTU of 1000, my igb device drops all received 
> packet having length more than 1000

That is how must NICs work...MTU basically == maximum receive unit as well.


> However e1000e allows me to receive such packets.

Someone will probably fix that one day.

Why do you expect mis-matched MTU networks to work?

Thanks,
Ben


-- 
Ben Greear <gree...@candelatech.com>
Candela Technologies Inc  http://www.candelatech.com


------------------------------------------------------------------------------
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&#174; Ethernet, visit 
http://communities.intel.com/community/wired

Reply via email to