Capture packets from the command line

You can start packet capture at the command line with the analyzer start command. Alternatively, you can schedule the network analyzer to run based on a specified event or at a particular time. See Configure packet capture for the network analyzer for information about scheduling packet capturing.

Additional analyzer commands allow you to:

Required configuration items

A configured packet capture. See Configure packet capture for the network analyzer for packet capture configuration information.

To start packet capture from the command line:

 Command line

Select the device in Remote Manager and click Actions > Open Console, or log into the EX15 local command line as a user with full Admin access rights.
Depending on your device configuration, you may be presented with an Access selection menu. Type admin to access the Admin CLI.
Type the following at the Admin CLI prompt:
```
> analyzer start name capture_filter
>
```
where capture_filter is the name of a packet capture configuration. See Configure packet capture for the network analyzer for more information.
To determine available packet capture configurations, use the ?:
```
> analyzer start name ?

name: Name of the capture filter to use.
Format:
  test_capture
  capture_ping

> analyzer start name
```

You can capture up to 10 MB of data traffic in two 5 MB files per interface.

Note Data traffic is captured to RAM and the captured data is lost when the device reboots unless you save the data to a file. See Save captured data traffic to a file.