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Networking stack in traditional scenarios In traditional scenarios, the networking stack is small, and all the packet routing and switching happens in external devices. The networking stack is a set of networking components that process and move networking traffic. All the components between this adapter and an application form a networking stack. It is available in-box via pktmon.exe command, and via Windows Admin Center extensions.Īny machine that communicates over the network has at least one network adapter. Packet Monitor (PacketMon) is an in-box cross-component network diagnostics tool for Windows. It can be used for packet capture, packet drop detection, packet filtering and counting. The tool is especially helpful in virtualization scenarios like container networking, SDN, etc. This new infrastructure requires a more comprehensive network diagnostics approach. The additional complexity in the endpoints often leads to connectivity issues that are hard to diagnose. Lately, with the introduction of network virtualization, more of the infrastructure capabilities like routing and switching are being integrated into the endpoints. Network connectivity issues are often hard to diagnose. There are multiple machines involved in a single data transfer at least two endpoints and a complex network infrastructure in the middle.