[CentOS] Info about the NIC

[Tronn Wærdahl]

If you do a ifconfig eth0 you get some info about the eth0 nic

eth0    Link encap:Ethernet  HWaddr 00:02:B3:63:EF:43
          inet addr:x.x.x.x Bcast:x.x.x.x  Mask:x.x.x.x
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1166 errors:0 dropped:0 overruns:0 frame:0
          TX packets:268 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100
          RX bytes:104255 (101.8 Kb)  TX bytes:19936 (19.4 Kb)
          Interrupt:5 Base address:0x2000


I wounder about RX bytes and TX bytes, what does it mean, how does it
collect its data
How often does it zero the counters, every boot, hour or somethings else?.
Is the information reliable



Thanks

Tronn
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