MTU Problem: Akamai,HE,GTT

[Nick Hilliard]

On 22/09/2014 15:06, Erik Nygren wrote:
> Can you pass me along a traceroute6 to 2a02:26f0:6a:18f::eed and I'll pass
> it along to the Akamai NOCC?  (Or you can email details to noc at akamai.com
> <mailto:noc at akamai.com>).  From here I'm able to ping it fine with large
> packets:

scamper is your friend here:

> cheesecake# scamper -I "trace -P udp -M 2a02:26f0:6a:18f::eed"
> traceroute from 2a03:8900:0:100::5 to 2a02:26f0:6a:18f::eed
>  1  2a03:8900:0:100::1  0.216 ms [mtu: 1500]
>  2  2a02:8900:0:200::209  0.216 ms [mtu: 1500]
>  3  2a01:258:8:3::1  0.634 ms [mtu: 1500]
>  4  2001:1900:5:2:2::2dd9  1.053 ms [mtu: 1500]
>  5  2001:1900:5:1::319  12.990 ms [mtu: 1500]
>  6  2001:1900:5:1::412  12.926 ms [mtu: 1500]
>  7  2001:1900:5:3::21e  11.290 ms [mtu: 1500]
>  8  2001:41a8:600::1e  26.975 ms [mtu: 1500]
>  9  2001:41a8:600:2::b6  27.529 ms [mtu: 1500]
> 10  *
> 11  2a02:26f0:6a::210:d9a3  25.227 ms [mtu: 1500]
> cheesecake#

This means no path mtu problems from as1197 to 2a02:26f0:6a:18f::eed.

Nick