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Dumb question: I thought TCP/IP was designed to route around cut fibre cuts.
by tiffanyh 4y ago
Dumb question: I thought TCP/IP was designed to route around cut fibre cuts.
- pvg 4y agoThat's pretty much what happens but no amount of routing can make up for the loss of capacity when you physically take out a part of the network. You end up with less total available bandwidth and more latency.
- caymanjim 4y agoIt is, and a cut like this rarely causes a complete outage, but it depends on whether and what kind of backup connectivity your ISP has, and the connectivity of your destination. Bigger entities tend to have more backups. Smaller entities tend to have fewer backups, and often the backups are much lower bandwidth/quality, so it's typical for service to degrade.
- Arnavion 4y agoAlso to be clear, this is handled by BGP, not by TCP/IP. BGP is what ASs use to identify who connects to what so that they can route IP appropriately.
- AtNightWeCode 4y agoDon't know about Hetzner but cloud traffic these days are not routed over the public Internet in that way.