RHEL: Why does "ifconfig" show framing errors but "ethtool -S" shows no errors?
Issue
- We are experiencing TCP RX errors and frame errors in the output of
ifconfig -a. The counters continue to increment. The specific interface is a bond which consists of physical interfaces. They are 10G fiber. The DBA is noticing latency on the NFS volumes that are coming in via this 10G interface. Network team had a packet sniffer on here and they are seeing a lot of Re-ACK's which seems to suggest the server is not communicating well with the NetApp filer.
Environment
- Red Hat Enterprise Linux 6
- kernel-2.6.32-431.5.1.el6
- Bnx2x driver
- NetApp filer
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