Re: Nice try
"An example of technical superiority - Google runs a 2 petabit network core in their data centers. "
No they don't. The ENTIRE fabric of their network backbone has a 1 Petabit bi-directional throughput capability if you read and actually understood the document that you linked to! (So enough to support ~ 100,000 servers with single 10Gbits connections. Microsoft's Xbox Live infrastructure alone beats that hands down, let alone the rest of Azure...
"They invented all of the tech, right through the networking custom protocol."
Microsoft built everything on NVGRE, so it works with standard industry leading switches...
" One of the reasons why their performance is outstanding."
But it isn't - If you look at cloud benchmarks, they lag behind Microsoft (fastest) and Amazon (mostly next fastest) on storage and cloud network benchmarks. Microsoft do use some custom hardware though: http://www.theregister.co.uk/2015/06/18/windows_server_2016_to_inherit_azures_load_balancer_data_plane/