[outages] Intermittent ICMP and DNS for 4.2.2.[123]

[Mark Kent]

You guys know that 4.2.2.[123] are anycast, so you get to different
servers depending on where you enter the Level3 network, right?

Mentioning just in case some have missed this.

-mark

SanJose:

  2 ae-41-90.car1.SanJose1.Level3.net (4.69.152.195) [AS 3356] 2ms 1ms 1ms
  3 vnsc-bak.sys.gtei.net (4.2.2.2) [AS 3356] 2ms 1ms 1ms

NewYork:

  2 ae-41-90.car1.NewYork1.Level3.net (4.69.155.195) [AS 3356] 0ms 4ms 0ms
  3 vnsc-bak.sys.gtei.net (4.2.2.2) [AS 3356] 4ms 0ms 0ms

WashDC:

  2 ge-5-0-60.hsa1.Washington2.Level3.net (4.69.149.51) [AS 3356] 1ms 1ms 1ms
  3 vnsc-bak.sys.gtei.net (4.2.2.2) [AS 3356] 2ms 2ms 1ms