Capturing and Saving Data#
You can capture data from the nodes of any connected debug adapters, either from one node at a time, or from multiple nodes simultaneously. You can also capture all network traffic over the current channel by capturing data from a connected sniffer node.
Note: The types of data captured depend on the capabilities of the node's radio chip and debug adapter.
Capturing from a Sniffer Node#
A sniffer node has a sniffer application loaded on its wireless SoC, which enables it to capture all over-the-air transmissions between nodes over the designated channel. When you start capturing from a sniffer node, it captures all packets that are exchanged by the nodes on the designated channel.
Capturing from Multiple Nodes#
You can capture data from multiple nodes simultaneously. This is typically done for nodes that belong to the same network. Network Analyzer captures all incoming and outgoing packet data through the selected debug adapters, whether or not the host nodes have sniffer applications. The data includes failed transmissions, and debug messages from node applications that are compiled in debug mode.
Perfect Trace Session#
Capturing from all nodes in a network yields a perfect trace session. The session data compiles all incoming and outgoing data from each node in chronological real time, providing a richly layered view of all activity within a network. This can be especially useful for debugging a network while it undergoes development.
Note: A sniffer capture intercepts all over-the-air transmissions among network nodes; however, the sniffer cannot detect any data transmissions that are known only to their senders such as messages that fail to arrive at their destination, and debug data such as API traces. These are captured in a perfect trace session.