Ifconfig dropped packets
- how to check dropped packets in linux
- how to drop packets in linux
- check packet loss linux
Dropwatch.
How to find out the reason(s) why the network interface is dropping packets?
Try (i.e.
Ethtool dropped packets
for ), it's not perfect but it breaks down errors by transmit/receive and by carrier, window, fifo, crc, frame, length (and a few more) types of errors.
Drops are not the same as "ignored", show interface level statistics, a multicast packet ignored by a higher level (layer 3, the IP stack) won't show as a drop (though it might show up as "filtered" on some NIC stats).
Statistics may be complicated somewhat by various offload features.
You can get more stats if you have :
Some statistics depend on the NIC driver, as will the exact meaning. The above is from an Intel . Having looked at handful of drivers, some collect many more statistics than others (the stats available to ethtool tend to be kept in separate source file, e.g.
, if you need to rummage).
will show the driver details, the output of should be more detailed, though with a bit of clutter too.
Update In function there's only one place that looks likely with a , but the code is littered with s, so there are several other c