Commands to query and change the device attributes

Several status utilities can be used to show the transmit queue high-water limits and number of no resource or no buffer errors.

You can use the netstat -v command, or go directly to the adapter statistics utilities (entstat for Ethernet, tokstat for Token-Ring, fddistat for FDDI, atmstat for ATM, and so on).

For an entstat example output, see Adapter statistics. Another method is to use the netstat -i utility. If it shows non-zero counts in the Oerrs column for an interface, then this is typically the result of output queue overflows.