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X-Original-To: nanog@nanog.org From: John Orthoefer <jco@direwolf.com> In-Reply-To: <m2eglco72p.wl%randy@psg.com> Date: Mon, 15 Jun 2015 20:56:26 -0400 To: NANOG <nanog@nanog.org> Errors-To: nanog-bounces@nanog.org > On Jun 15, 2015, at 8:00 PM, Randy Bush <randy@psg.com> wrote: >=20 > dns is udp 15 years ago when we set up 4.2.2.1, there was a fair amount of TCP = based DNS. We tried for a bit to support it via the anycast address, = but ultimately we decided the support issues weren=E2=80=99t worth it. = The few customers that asked/required it were given non-anycast = addresses to use for TCP based DNS.=20 I really think the OPs best answer is some DNS based load balancer, that = can take metrics based on routing. johno
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