# How to manage PCAP cleaning

## How it works

Class 4 store all SIP capture in a file every minute.  You can find all the PCAP log under the following directory path:

 {installdir}/dnl\_softswitch/pcap.

{% hint style="info" %}
If you are installed using the standard RPM, AWS cloud image or Google cloud image, the default install path should be /opt/denovo
{% endhint %}

PCAP files get accumulated very fast.  If you don't have sufficient space, you may want to setup Class 4 to automatically clean the pcap files.

Here is the config file you need to use to control the pcap setting:

```
/opt/denovo/dnl_softswitch/conf/dnl_softswitch.conf
```

The section you need to update is:

```
[capture]
enable_capture = yes
enable_compress = yes
pcap_save_day = 3
#this setting tells the switch from when you want the old pcap be compressed
#delay_compress_days = 2
#this section tells the switch at which hour of the day ( GMT ) that you want the compress to take place.
#delay_compress_exe_hour = 5
    
```

After you make changes to this config file, you must restart the switch to make it effective.  Here is the command to restart Class 4 softswitch:

```
systemctl restart dnl_softswitch
```