A customer is troubleshooting FCoE in its network and sees pause counters increasing
when it runs the command show interface eth1/5. What is the cause of this?
A.
The CNA connected to the switch is sending Xon orXoff PFC frames.
B.
The HBA connected to the switch is sending Xon orXoff PFC frames.
C.
Pause counters increase regularly; there is nothing to be concerned about.
D.
A firmware upgrade on the Fibre Channel adapter that is connected to the switch will fix
this issue.
http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5000/sw/troubleshooting/guide/N5K_Troubleshooting_Guide/n5K_ts_fcoe.html
If the Nexus 5000 switch is connected to a CNA, then the CNA might be sending Xon PFC frames to the switch. This increments pause counters when using the show interface ethx/x command.
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