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Dec 7, 2018 at 8:23 comment added Jeremy Gibbons OK fair enough, thanks.
Dec 7, 2018 at 8:10 comment added YLearn Mod Your examples would already be on topic for your corporate WAN. What you are in essence asking is how to configure your network for those cases. Traffic that egresses China: do you allow it, do you handle it differently in some way, and so on. How can I optimize the use of multiple service provider links to account for issues on the Internet or how can I use routing to choose/encourage a different path based on performance. These are questions about how to configure the network under your control based on outside information. But they are about a network you control.
Dec 7, 2018 at 8:02 comment added Jeremy Gibbons I don't necessarily want "is X peered with Y" discussions, I understand why that's not desired here. However I believe there are legitimate question around the design of a corporate WAN that involve networks that are not under our direct technical control and that are relevant for this community. One example that comes to mind is how to handle Internet egress from China. Or maybe which solutions can be used to measure peering performance between two points on the Internet to optimize Internet-based WAN performance.
Dec 7, 2018 at 7:10 comment added YLearn Mod The reasoning behind limiting to networks under direct control is that allowing questions like the ones you suggest leads to questions that can only be answered by opinion and/or guesses. Questions where your network is connecting to the larger network at least allows a poster to provide information about their side of the connection. For example, you mention peering arrangements and to get an answer to "what kind of peering arrangement do X and Y have" could only be answered by someone from X or Y unless either X or Y have made details public, which is highly uncommon.
Dec 7, 2018 at 7:00 comment added Jeremy Gibbons These networks are not usually under our direct control, but they are a huge (and growing) part of what an enterprise networking team needs to deal with when they engineer a modern global corporate WAN.
Dec 7, 2018 at 7:00 history answered Jeremy Gibbons CC BY-SA 4.0