I am looking to see what others experiences are with transit providers.
Mainly I am wondering about IPv6 Support and MTU Sizes
From talking to my upstream providers it appears that 1500MTU is the limit I have access
to, and one of my two upstreams doesn’t provide IPv6 for transit.
This leads my to a few logical questions:
* How many transit providers provide MTU above 1500 Bytes?
* How many transit providers do not provide IPv6 transit?
* How do others handle EDNS?
I was doing some looking around our systems a while back and I found a default setting in
the Bind9 version we were running that set EDNS to 4096 Bytes. Now all of our transit is
limited it seems to 1500 Bytes, so I set the config to limit the announced support down
into the usable range by us and saw a reduction in the need for DNS retries.
Do other people just have better handling of fragmentation? Do you find any issues having
EDNS announcing support for sizes above your transit? do you just have transit that
supports MTU over 1500 Bytes?
And a big issue in my opinion is the lack of IPv6 support from transit providers. I am not
sure about other providers but it will be one deciding factor when purchasing transit
Happy to receive information off list if people don’t want to name on here.
Neilson Productions Limited
021 329 681
022 456 2326