/proc/net/dev 파일의 column은 각각 뭘 의미하는 건가요?
bytes: The total number of bytes of data transmitted or received by the interface.
packets: The total number of packets of data transmitted or received by the interface.
errs: The total number of transmit or receive errors detected by the device driver.
drop: The total number of packets dropped by the device driver.
fifo: The number of FIFO buffer errors.
frame: The number of packet framing errors.
colls: The number of collisions detected on the interface.
compressed: The number of compressed packets transmitted or received by the device driver. (This appears to be unused in the 2.2.15 kernel.)
carrier: The number of carrier losses detected by the device driver.
multicast: The number of multicast frames transmitted or received by the device driver.
지금 packet쪽에 대한 지식이 부족하다보니 각자 필드에 대한 설명을 봐도 이해가 안 가네요.
지금 정말 궁금하고 필요한 것은
1. error와 drop의 차이는 무엇인가요?
2. error와 drop은 수신/송신 모든 경우에서 측정할 수 있나요? 있다면 그 방법은?
3. 나머지 필드들(fifo, frame, colls, compressed, carrier, multicast)은 뭘 의미하는 건가요?
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