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Date: Mon, 4 Jun 2018 06:02:30 -0700 From: Eric Dumazet <eric.dumazet@...il.com> To: PKU.孙斌 <bswen@....edu.cn>, 'Willy Tarreau' <w@....eu>, 'Eric Dumazet' <eric.dumazet@...il.com> Cc: 'Linux Kernel Network Developers' <netdev@...r.kernel.org> Subject: Re: 答复: ANNOUNCE: Enhanced IP v1.4 On 06/03/2018 10:58 PM, PKU.孙斌 wrote: > On Sun, Jun 03, 2018 at 03:41:08PM -0700, Eric Dumazet wrote: >> >> >> On 06/03/2018 01:37 PM, Tom Herbert wrote: >> >>> This is not an inconsequential mechanism that is being proposed. It's >>> a modification to IP protocol that is intended to work on the >>> Internet, but it looks like the draft hasn't been updated for two >>> years and it is not adopted by any IETF working group. I don't see how >>> this can go anywhere without IETF support. Also, I suggest that you >>> look at the IPv10 proposal since that was very similar in intent. One >>> of the reasons that IPv10 shot down was because protocol transition >>> mechanisms were more interesting ten years ago than today. IPv6 has >>> good traction now. In fact, it's probably the case that it's now >>> easier to bring up IPv6 than to try to make IPv4 options work over the >>> Internet. >> >> +1 >> >> Many hosts do not use IPv4 anymore. >> >> We even have the project making IPv4 support in linux optional. > > I guess then Linux kernel wouldn't be able to boot itself without IPv4 built in, e.g., when we only have old L2 links (without the IPv6 frame type)... *Optional* means that a CONFIG_IPV4 would be there, and some people could build a kernel with CONFIG_IPV4=n, Like IPv6 is optional today. Of course, most distros will select CONFIG_IPV4=y (as they probably select CONFIG_IPV6=y today) Do not worry, IPv4 is not dead, but I doubt Enhanced IP v1.4 has any chance, it is at least 10 years too late.
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