ls my modem or DSL company issue? 1300 not good but 1200 is fine

[trelane at trelane.net (Andrew D Kirch)]

Perhaps dslreports would be a more useful forum for this question?

On 06/22/2010 01:51 PM, Deric Kwok wrote:
> Hi
>
> It is very nice that Ina replied me about mtu help
>
> Now I am using ping to check
> but not sure it is my modem or DSL company issue?
>
> C:\Documents and Settings\derek>ping yahoo.com -f -l 1300
>
> Pinging yahoo.com [98.137.149.56] with 1300 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:
>      Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
>
>
>
> C:\Documents and Settings\derek>ping yahoo.com -f -l 1200
>
> Pinging yahoo.com [98.137.149.56] with 1200 bytes of data:
>
> Reply from 98.137.149.56: bytes=1200 time=141ms TTL=55
> Reply from 98.137.149.56: bytes=1200 time=141ms TTL=55
> Reply from 98.137.149.56: bytes=1200 time=145ms TTL=55
> Reply from 98.137.149.56: bytes=1200 time=141ms TTL=55
>
> Ping statistics for 98.137.149.56:
>      Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
> Approximate round trip times in milli-seconds:
>      Minimum = 141ms, Maximum = 145ms, Average = 142ms
>
> Thank you for your help
>
>