nanog mailing list archives
Re: IPv6 and CDN's
From: Owen DeLong via NANOG <nanog () nanog org>
Date: Sat, 27 Nov 2021 14:22:43 -0800
Actually, I think it’s in the fine print here… “Connection setup is 1.4 times faster”. I can believe that NAT adds almost 40% overhead to the connection setup (3-way handshake) and some of the differences in packet handling in the fast path between v4 and v6 could contribute the small remaining difference. I doubt it is due to different connections, since we’re talking about measurements against dual-stack sites reached from dual-stack end-users, very likely traversing similar paths. Owen
On Nov 27, 2021, at 14:02 , Grzegorz Janoszka <grzegorz () janoszka pl> wrote: On 26/11/2021 22:47, Jean St-Laurent via NANOG wrote:"And when IPv6 is in use, the median connection setup is 1.4 times faster than IPv4. This is primarily due to reduced NAT usage and improved routing."Oh I believe IPv6 is faster but because of completely different reasons. Modern faster connections more likely have IPv6 while old low-bandwidth circuits may provide v4 only. Some users may also use VPN which is almost always v4 only. Their VPN may do funny routing, hair-pinning and similar behavior thus impacting their performance. -- Grzegorz Janoszka
Current thread:
- Re: IPv6 and CDN's, (continued)
- Re: IPv6 and CDN's Owen DeLong via NANOG (Nov 27)
- Re: IPv6 and CDN's Mark Tinka (Nov 27)
- Re: IPv6 and CDN's Owen DeLong via NANOG (Nov 27)
- RE: IPv6 and CDN's JCLB (Nov 27)
- Re: IPv6 and CDN's William Herrin (Nov 27)
- Re: IPv6 and CDN's Michael Thomas (Nov 27)
- Re: IPv6 and CDN's Dave Taht (Nov 28)
- RE: IPv6 and CDN's Jean St-Laurent via NANOG (Nov 26)
- Re: IPv6 and CDN's Mark Tinka (Nov 27)
- Re: IPv6 and CDN's Grzegorz Janoszka (Nov 27)
- Re: IPv6 and CDN's Owen DeLong via NANOG (Nov 27)
- Re: IPv6 and CDN's Michael Thomas (Nov 27)
- Re: IPv6 and CDN's Owen DeLong via NANOG (Nov 27)
- Re: IPv6 and CDN's Christopher Morrow (Nov 27)
- Re: IPv6 and CDN's Owen DeLong via NANOG (Nov 27)
- Re: IPv6 and CDN's Mark Tinka (Nov 27)
- Re: IPv6 and CDN's Masataka Ohta (Nov 27)
- Re: IPv6 and CDN's Mark Tinka (Nov 27)
- Re: IPv6 and CDN's Masataka Ohta (Nov 27)
- Re: IPv6 and CDN's Fred Baker (Nov 27)
- Re: IPv6 and CDN's Masataka Ohta (Nov 27)