[127356] in North American Network Operators' Group
pls help about mtu setting again
daemon@ATHENA.MIT.EDU (Deric Kwok)
Wed Jun 23 12:53:12 2010
Date: Wed, 23 Jun 2010 12:53:02 -0400
From: Deric Kwok <deric.kwok2000@gmail.com>
To: nanog list <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Hi
Thank you for your reply about DSL mtu
Now I have question about internet cable connection. ls it same as DSL?
I tested it in my friend cable connection.
1470 is fine but 1480 is problem. Why it needs header in cable connection a=
lso?
C:\Documents and Settings\deric>ping yahoo.com -f -l 1470
Pinging yahoo.com [98.137.149.56] with 1470 bytes of data:
Reply from 98.137.149.56: bytes=3D1470 time=3D96ms TTL=3D50
Reply from 98.137.149.56: bytes=3D1470 time=3D91ms TTL=3D50
Reply from 98.137.149.56: bytes=3D1470 time=3D92ms TTL=3D50
Reply from 98.137.149.56: bytes=3D1470 time=3D89ms TTL=3D50
Ping statistics for 98.137.149.56:
=A0 Packets: Sent =3D 4, Received =3D 4, Lost =3D 0 (0% loss),
Approximate round trip times in milli-seconds:
=A0 Minimum =3D 89ms, Maximum =3D 96ms, Average =3D 92ms
C:\Documents and Settings\deric>ping yahoo.com -f -l 1480
Pinging yahoo.com [98.137.149.56] with 1480 bytes of data:
Packet needs to be fragmented but DF set.
Packet needs to be fragmented but DF set.
Packet needs to be fragmented but DF set.
Packet needs to be fragmented but DF set.
Ping statistics for 98.137.149.56:
=A0 Packets: Sent =3D 4, Received =3D 0, Lost =3D 4 (100% loss),
Thank you for your help
