Yes... there is typo error in 3rd point "I am not able to ping more then size 1520 with DF bit"
Means there is no issue in link and I will not able to ping with DF bit more then size 1520. On Wed, Jan 19, 2011 at 10:49 AM, Pshem Kowalczyk <[email protected]> wrote: > Hi, > > On 19 January 2011 15:20, Muhammad Atif Jauhar <[email protected]> > wrote: > > Hi, > > > > I am testing the link and face issue. > > 1. while performing ping test without df bit, I am able > to > > ping with size upto 18024 > > 2. while performing ping test with df bit, I am able to > > ping with size 1520 > > 3. while performing ping test with df bit, I am able to > > ping with size more than 1520 > > > > *Kindly let me know, why I am not able to ping with DF bit with size more > > than 1520 (MTU value). How can I troubleshoot the issue. * > > Points 2 and 3 seem to be contradictory. Assuming that you actually > meant that you can not ping with packets bigger then 1520 with the DF > bit set - this is expected behaviour. The DF bit tells the routers > that they can not fragment that packet (which they do if the DF is not > set). As your MTU is 1520 the biggest packet with DF bit set can only > be 1520. Anything bigger won't be forwarded. > > kind regards > Pshem > -- Regards, Muhammad Atif Jauhar (+60-10-2155076) _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
