12 Feb
2022
12 Feb
'22
4:23 a.m.
On 2/11/22 14:27, Mike Hammett wrote:
The device that caused this whole conversation has failover functionality. Both interfaces ping an FQDN (that resolves to 8.8.8.8 and 1.1.1.1, with the device only latching on to one of those). If any of those meet the failure threshold, that interface is taken out of the traffic flow.
So because someone else built a device (without a meaningful configuration to set otherwise), 8.8.8.8 went down for ICMP, and thus Internet ports began flapping, despite the Internet as a whole working just fine.
Pretty amazing, isn't it? Mark.