On Mon, Aug 11, 2025 at 3:08 PM Matthew Petach via NANOG < nanog@lists.nanog.org> wrote:
Having been bitten by this in the past...never base your determination of "healthy" or "working" on a single external data reference. It can be tempting to just assume 8.8.8.8 will always be "up" and "pingable" to verify your internet connectivity is good...right up to the point where Google has a routing snafu
... No need for a routing snafu... 8.8.8.8 is current getting a steady-state 27Mpps (million packets/second) of ICMP ECHO_REQUEST. Internet connectivity checking is not a service we offer, and there is no SLA for it, therefore it may go away at any time. There is a very real risk of me running an April 1st experiment of "what would happen if I just ACL off all the pings?". I might have guessed I'd light up a couple dozen pagers and start a nanog@ flamewar... but if anyone is basing routing decisions on that, it will be a "fun" day indeed! Damian -- Damian Menscher :: Security Reliability Engineer :: Google :: AS15169