RE: Comcast's 6to4 Relays

[Bhoomi Jain <bhoomij () india com>]

Mr. John,

I thank you for asking the advice of the community.

As our colleagues suggest, having 6to4 relays inside the network helps to reduce the latency.  Opening up your generous 
services to a larger Internet community by advertising the 192.88.99.0/24 BGP prefix outside the network could have 
extreme and unintended consequences.

To give you an idea, a lot of the Internet in India depends on the service of the Tata companies, with international 
routing coming from Tata Communications AS 6453.  Announcing 192.88.99.0/24 to 6453 as a customer, I would worry about 
its treatment as BGP best-path, in place of closer 6to4 relays.  As you understand, these circuits are very far away, 
and also very full.  This is not something I would recommend.

Sincerely,
Bhoomi Jain

At 19 Apr 2011 22:51:24 +0200 (CEST) from "Brzozowski, John" <John_Brzozowski () Cable Comcast com>:

> Folks,
> Since deploying our 6to4 relays, Comcast has observed a substantial
> reduction in the latency associated with the use of 6to4. As such we are
> contemplating further opening our relays for use by others. The
> availability of our 6to4 relays should improve the experience of others
> using 6to4 as a means to access content and services over IPv6.
> We have been open about our IPv6 activities and wanted to follow suit by
> reaching out to the community and soliciting feedback before moving
> forward. As always we wish to continue to advocate and support the
> universal deployment of IPv6.
> Please send any comments or questions to the list or if you wish to me
> directly.
> John
> =========================================
> John Jason Brzozowski
> Comcast Cable
> e) mailto:john_brzozowski@[cable.comcast.com]
> o) 609-377-6594
> m) 484-962-0060
> w) [http://www.comcast6.net]
> =========================================