Australia East to Japan East Latency

Question

Hi

The Australia East to Japan East latency (VM to VM) I'm seeing is around 162ms - which is also stated here: https://learn.microsoft.com/en-us/azure/networking/azure-network-latency

I'd like to use ExpressRoute Global Reach between the Sydney POP and Tokyo POP but our current latency over MPLS is 105ms between Sydney and Tokyo - moving to Global Reach is a large increase in latency.

Would by any chance Global Reach follow a more direct route than region to region VM traffic? Based on the latency it looks like Sydney - Tokyo is routing via Hong Kong - 118ms + 45ms. Ideally Sydney - Tokyo needs to take a more direct path.

Additionally Australia Central has lower latency to Japan (136ms) which is strange, as its further away in distance than Sydney.

Thanks

Answer 1

Unfortunately this takes the path of the Microsoft backbone, and it is not possible to adjust the routing on your end. This would require a re-routing of backbone traffic. If you would like us to improve this latency in the future, please leave your feedback here at Azure Networking's feedback.azure.com page.