Cisco CSR 1000V 16.5 speed throttled - Azure Cloud

Hello Team,

 

1.Download from AZURE CISCO CSR on East US location to local ubuntu box.

root@kernels:~# curl -O http://username:password@52.168.161.119/bootflash/test10M.pdf
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
115k 0:01:28  

2.Download from Apache server on Azure, East US location.

root@kernels:~# curl -O http://52.224.179.28/test10M.pdf
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
2253k 0:00:04

It took 90 seconds to download the 10MB file from Cisco CSR whereas the same file got downloaded from Apache server in 4 seconds. Apache server and Cisco CSR are located in East US Azure Cloud.

I have checked duplex mismatch, both boxes are operating at 1000Mbps and Full duplex mode.

Anyone has any ideas about what cloud be the possible reasons?