NSX CLI Guide
start capture interface <interface-name> [direction <direction>] [core <core-id>] [snaplen <capture-snaplen-arg] [file <filename>] [file-count <file-count>] [expression <expression>]
Start a packet capture on the specified interface in the given direction and core.
If you do not specify a file, the output is displayed on the terminal.
If file is specified, the file count can be specified to enable rotating
capture files, where each file will be of size 100MB. Multiple files
will be bundled into single tarfile.
Type Control-C to end the packet capture. You can filter the capture using
tcpdump expressions. The expression must be the last argument of the command.
The expression is a keyword followed by a value. You can specify multiple
keyword-value pairs.
Parameters:
| Option | Description |
|---|---|
| <interface-name> | Network interface argument |
| <capture-direction> | Packet capture direction parameter Allowed values: input, output, dual |
| <capture-snaplen> | Packet capture snapshot length |
| <filename> | Capture file name Allowed pattern: ^[^/ *;&|]+$ |
| <file-count> | File count for rotating capture (1-25) |
| <expression> | Packet capture expression Allowed pattern: ^.*$ |