How to measure the network traffic in/out between two virtual networks in azure?

Question

I have deployed two virtual network gateway associated two different virtual networks. I have connected them via two connections (say connect_1 and connect_2). As soon as I did this, on the azure portal I can see some bytes of data getting in and out.(Data in:202.28 KiB, Data out:202.66 KiB) How is this possible when i haven`t exchanged any data?

Also, if I exchange data, what will be the parameter to measure the bandwidth? Will it be tunnel_egress_bytes_transferred and tunnel_ingress_bytes_transferred?

Answer 1

For the current VPN gateway bandwidth in use, you could check the metric Gateway S2S Bandwidth for all connections associated with this gateway.

If you exchange data, you could check these dimension metrics with Tunnel prefix name for each of VNET to VNET connections in the Virtual network gateway panel. For example, select the metric TunnelAverageBandwidth with filtering ConnectionName or RemoteIP , you will see the specific tunnel bandwidth in bytes per second.

Additionally, if you just want to connect the two virtual networks in Azure, you could select VNet peering . It has simple operation and less cost.