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                             NTU-1 Optical Network Terminals      15 
Do  not  disconnect  the  device  from  the  power  supply  or  reboot  it  during  firmware  updates.  The 
firmware update can take a few minutes after which the device will be rebooted automatically.  
3.4.  Statistics menu 
3.4.1  The Interface submenu. Network Interface statistics 
This page shows the packet statistics for transmission and reception regarding to network interface. 
 
–  Interface – network interface name 
–  Rx pkt – received packets; 
–  Rx err – received packets with errors; 
–  Rx drop – dropped packets during receiving; 
–  Tx pkt – transmitted packets; 
–  Tx err – transmitted packets with errors; 
–  Tx drop – dropped packets during transmitting. 
Click the Refresh button to refresh information and click the Reset Statistic button to reset statistics. 
3.4.2  The PON submenu. PON-interface statistics 
This tab displays the statistics of received and transmitted packets for the PON interface. 
 
–  Bytes Sent –  number of the transmitted bytes; 
–  Bytes Received –  number of the received bytes; 
–  Packets Sent –  number of the transmitted packets; 
–  Packets Received – number of the received packets; 
–  Unicast Packets Sent – number of the transmitted unicast packets; 
–  Unicast Packets Received – number of the received unicast packets; 
–  Multicast Packets Sent – number of the transmitted multicast packets; 
–  Multicast Packets Received – number of the received multicast packets; 
–  Broadcast Packets Sent – number of the transmitted broadcast packets; 
–  Broadcast Packets Received – number of the received broadcast packets;