Azure Network Watcher

Network watcher provides a set of tools to help monitor various aspects of the network.

IP Flow Verify: It is a tool under network watcher, that helps check if access is allowed from a source to the destination address. It also highlights the rule responsible for allowing or blocking access.

Next Hop: shows which will be the next hop when the source device will connect to the destination device.

Connection Troubleshoot: One can deploy a “network watcher agent” on the VM, this helps to check the connection between the VM and destination. It shows the complete route with the time taken at each hop, hence helping debug performance or rule blocking the connection.

VPN troubleshoot tool: As the name suggests, helps troubleshoot connection problems between two VPNs.

Connection Monitor: between a VM and endpoint, monitors the connectivity, e.g. between two VMs, shows a report with round trip latency based on the time period selected. You can further set alerts for example alert if the latency goes beyond 200ms.

Traffic Analytics: gives a report on a high level, for virtual networks or subnetworks, it shows traffic flow details. If there are malicious flows, they will be highlighted in the report. shows complete traffic details, sources, and destinations, and also highlights data on the port level, so you can figure out which ports are getting the most malicious traffic.

Network performance monitor: As the name suggests, helps monitor performance for the network, i.e. time taken in terms of latency.