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Update: "Preliminary root cause: A portion of third-party managed network infrastructure that facilitates authentication requests and access to Microsoft 365 se
by abalone 8y ago
Update: "Preliminary root cause: A portion of third-party managed network infrastructure that facilitates authentication requests and access to Microsoft 365 services was degraded."
(Emphasis mine.)
- snazz 8y agoThat doesn’t seem right. For something so critical to many of their corporate mega-customers, there shouldn’t be any “third-party managed” infrastructure at all.
- mrmondo 8y agoMore so that there should be redundancy if it's a critical system.
- londons_explore 8y ago"network infrastructure" - it'll be a fiber cut or failed router, together with a failover process that didn't work or was overlooked.
- tatersolid 8y agoThat’s not how the internet works. Every large provider has third-party connectivity. There’s no wire from Microsoft to your house. You can buy connectivity from 5 diverse providers per data center, but if one of them continues to advertise your routes while not being able to actually pass traffic to your destination, you’re “down” to some people through no fault of your own. I’ve had this happen with AT&T, XO/Verizon, and Cogent in recent years. It’s not uncommon. In all cases it was mis-configured ISP routers. Usually a support engineer admits a QoS or DDoS-protection configuration went wrong.