Re: TCP and anycast (was Re: ECN)

2019-11-16 Thread Scott Weeks
--- ra...@psg.com wrote: lots of good research lit on catchment topology of anycasted dns, which is very non-local. --- For the others here that didn't know what that is and are curious. I couldn't take it and just had to know... :) https://tools.ietf.org/ht

Re: TCP and anycast (was Re: ECN)

2019-11-14 Thread William Herrin
On Thu, Nov 14, 2019 at 1:10 AM Bill Woodcock wrote: > > On Nov 14, 2019, at 7:39 AM, Anoop Ghanwani wrote: > > RFC 7094 (https://tools.ietf.org/html/rfc7094) describes the pitfalls & risks of using TCP with an anycast address. It recognizes that there are valid use cases for it, though. > > Spe

Re: TCP and anycast (was Re: ECN)

2019-11-14 Thread Randy Bush
>>> RFC 7094 (https://tools.ietf.org/html/rfc7094) describes the pitfalls >>> & risks of using TCP with an anycast address. >> >> and two decades of operational experience are that prudent deployments >> just work. > > I agree with Bill/Randy here... this does just work if you understand > your lo

Re: TCP and anycast (was Re: ECN)

2019-11-14 Thread Christopher Morrow
On Fri, Nov 15, 2019 at 1:54 AM Randy Bush wrote: > > > RFC 7094 (https://tools.ietf.org/html/rfc7094) describes the pitfalls > > & risks of using TCP with an anycast address. > > and two decades of operational experience are that prudent deployments > just work. I agree with Bill/Randy here... t

Re: TCP and anycast (was Re: ECN)

2019-11-14 Thread Randy Bush
> RFC 7094 (https://tools.ietf.org/html/rfc7094) describes the pitfalls > & risks of using TCP with an anycast address. and two decades of operational experience are that prudent deployments just work. randy

Re: TCP and anycast (was Re: ECN)

2019-11-14 Thread Bill Woodcock
> On Nov 14, 2019, at 7:39 AM, Anoop Ghanwani wrote: > RFC 7094 (https://tools.ietf.org/html/rfc7094) describes the pitfalls & risks > of using TCP with an anycast address. It recognizes that there are valid use > cases for it, though. > Specifically, section 3.1 says this: >Most statefu

TCP and anycast (was Re: ECN)

2019-11-13 Thread Anoop Ghanwani
RFC 7094 (https://tools.ietf.org/html/rfc7094) describes the pitfalls & risks of using TCP with an anycast address. It recognizes that there are valid use cases for it, though. Specifically, section 3.1 says this: >>> Most stateful transport protocols (e.g., TCP), without modification, do