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154  |  Performance Series Full PoE Network Video Recorder User Guide
Figure 11-10 Testing the Network
2. On the Network Test page, under Network Test, enter a valid IPv4 address or domain 
name in the Destination Ad(dress) box, and then click Test.
The test result displays the average delay and packet loss rate. It also indicates if the 
network status is OK, Bad, or No Connection.
To back up network packet data to an external USB storage device
1. Insert a USB storage device (such as a USB flash drive) into one of the USB ports on the 
NVR.
2. On the Test page, under Network Sniffer Packet Backup, click Refresh. The connected 
USB storage device should appear in the Device Name box.
3. If you want, click Browse to set the saving path.
4. In the network devices list, in the Sniffer Packet Backup column, click the green arrow 
button to start capturing the data. Click the button again to stop capturing the data.
Viewing Log Information
To view log information
1. Go to Main Menu > INFO > LOG > LOG.