![]() ![]() Diagnostics Diagnose network traffic filtering problems to or from a VM You can download an editable version of the picture in SVG format. The following image shows an example topology diagram for a virtual network that has three subnets, two VMs, network interfaces, public IP addresses, network security groups, route tables, and the relationships between the resources: The topology capability enables you to generate a visual diagram of the resources in a virtual network and the relationships between the resources. View resources in a virtual network and their relationshipsĪs resources are added to a virtual network, it can become difficult to understand what resources are in a virtual network and how they relate to each other. Learn more about network performance monitor. It also ensures timely detection of network performance issues and localizes the source of the problem to a particular network segment or device. The solution generates alerts and notifies you when a threshold is breached for a network link. ![]() Network performance monitor detects network issues like traffic blackholing, routing errors, and issues that conventional network monitoring methods aren't able to detect. It also helps you monitor network connectivity to service and application endpoints and monitor the performance of Azure ExpressRoute. Network performance monitor is a cloud-based hybrid network monitoring solution that helps you monitor network performance between various points in your network infrastructure. If you'd rather test a connection at a point in time, rather than monitor the connection over time, as you do with connection monitor, use the connection troubleshoot capability. Learn more about determining relative latencies between Azure regions and internet service providers and how to monitor communication between a VM and an endpoint with connection monitor. After learning the latency for a connection, you may find that you can decrease the latency by moving your Azure resources to different Azure regions. ![]() Learn more about security rules and route hop types in Azure.Ĭonnection monitor also provides the minimum, average, and maximum latency observed over time. Potential reasons are a DNS name resolution problem, the CPU, memory, or firewall within the operating system of a VM, or the hop type of a custom route, or the security rule for the VM or subnet of the outbound connection. If an endpoint becomes unreachable, connection troubleshoot notifies you of the reason. Someone in your organization may, unknown to you, apply a custom route or network security rule to the web server or database server VM or subnet. ![]() For example, you might have a web server VM that communicates with a database server VM. The connection monitor capability monitors communication at a regular interval and informs you of reachability, latency, and network topology changes between the VM and the endpoint. Monitoring Monitor communication between a virtual machine and an endpointĮndpoints can be another virtual machine (VM), a fully qualified domain name (FQDN), a uniform resource identifier (URI), or an IPv4 address. Network Watcher isn't intended for and will not work for PaaS monitoring or Web analytics.įor information about analyzing traffic from a network security group, see Network security group flow logging and Traffic analytics. ![]()
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