Mr. Delong, I am simply trying to explain that running a 6to4 on your network is a good idea, however advertising the anycast prefix to other networks has some risk, especially if you're experiencing problems with your Internet peerings. Hopefully Comcast will upgrade its capacity soon. I appreciate Mr. John's continued leadership and contribution to the IPv6.
Sincerely, Bhoomi Jain At 20 Apr 2011 14:51:48 +0200 (CEST) from Owen DeLong <o...@delong.com>: > >The better solution to that problem is to get additional 6to4 relays deployed >closer to India. Perhaps encouraging Tata to take some leadership in that >area, for example. >I do not believe that the opening of the Comcast relays will harm BGP best >path selection for the 6to4 prefix except in rather broken and/or pathological >cases of BGP best path selection. Those cases should be relatively easy to >identify and correct locally without preventing Comcast from significantly >improving the 6to4 situation for the areas they serve by opening their relays. >I applaud John for his leadership in this area and I think the IPv6 work being >done by Comcast sets a good example for the community. As a Comcast customer, >praising Comcast does not come easy to me, but, in this area, they are doing >excellent things and should be commended. >Owen > >Sent from my iPad >On Apr 19, 2011, at 10:26 PM, Bhoomi Jain <bhoo...@india.com> wrote: >> 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]] >>> ========================================= >>> >>> >>> > >
