When I issue the “show interface counters errors” command, I see that one of the interfaces is consistently posting errors. What are the FCS-Err and Rcv-Err in the output of the “show interface counters errors” command?

Here is what is received:

Nexus-7000#show interface counters errors

----------------------------------------------------------------------------
Port      Align-Err    FCS-Err   Xmit-Err    Rcv-Err  UnderSize OutDiscards
----------------------------------------------------------------------------
Eth1/1            0         26          0         26          0           0

With FCS-Err and Rcv-Err, it is usually an indication that you are receiving corrupt packets.