Counter-point... transmission errors are not a certainty:

RX packets:323526978271 errors:0 dropped:0 overruns:0 frame:0

TX packets:249565709357 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:1000

RX bytes:285274358053849 (285.2 TB) TX bytes:287754558279252 (287.7 TB)

Ideally there should be no errors. :)

11 dropped packets isn't a big deal, but I wouldn't be quick to dismiss these errors by default. In certain cases things might be improved with driver updates, or sysctl tweaks, or a new ethernet cable, etc.