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A comment on IPv4 pricing. Parent comment

Re:IPv4 pricing by oarsinsync on Thursday July 29, 2021 @07:21AM (#27995172)
> If you want some serious redundancy nothing beats running services anycast with BGP across multiple cloud providers.

Unless they're TCP services. Or stateful UDP services. Then you're in for a world of pain if you try to anycast them.

The list of sensibly anycast services is surprisingly low. Stateless UDP services, essentially, which isn't a big list. Especially if you're the kind of person who's using Vultr's cloud, and not a megacorp.

If you have the resources to develop backend state sync, you're probably still better serviced with a (set of) load balancer(s).

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Re:IPv4 pricing by AdamJacobMuller on Monday August 02, 2021 @03:24PM (#28041425)
No way. Stateful TCP over anycast works fine reliably to many nines.

I run a CDN with anycast BGP, this obviously uses TCP. Works great. I've also done it with a global network of physical datacenters and our own transit/peering network but eventually migated to the cloud for reasons.

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