How to decrypt network load on Vesta server?

Question

Network administration

If you go to the statistics tab - network - in the vesta panel, that is, the statistics of 2 traffic sections, as I understand it.
Why are there 2 sections? What is the first section and what is the second?
+ For how long does this data go at all? Who knows - help and decipher please ...

ens3: flags=4163  mtu 1500
        inet 91.103.252.78  netmask 255.255.255.0  broadcast 91.103.252.255
        inet6 fe80::5054:ff:fe4b:dd0d  prefixlen 64  scopeid 0x20
        inet6 2a04:5200:5977:1::17  prefixlen 64  scopeid 0x0
        ether 52:54:00:4b:dd:0d  txqueuelen 1000  (Ethernet)
        RX packets 1920176  bytes 862568280 (862.5 MB)
        RX errors 0  dropped 2  overruns 0  frame 0
        TX packets 1021385  bytes 1946948744 (1.9 GB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 899402  bytes 2566336504 (2.5 GB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 899402  bytes 2566336504 (2.5 GB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

Answer 1

nishtyak, brother
lo is localhost
and ens3 is a network card
data for the period from the moment the interface was raised (UP)
if without bullshit - then read, from the moment the server was loaded