What does the following log message mean?
May 15 15:45:42 bn302 EventMgr: %HARDWARE-3-DROP_COUNTER_ALERT: Persistent Internal Drop 'DchUnreachables': 792271126642 detected on Fe3600-3/1
And there is high # of drop in the output of "sh hardware counter drop"
bn302.jhm.mlagB.profA0.w.15:47:58#show hardware counter drop
Summary:
Total Adverse (A) Drops: 20098028670058
Total Congestion (C) Drops: 0
Total Packet Processor (P) Drops: 72029
Type Chip CounterName : Count : First Occurrence : Last Occurrence
--------------------------------------------------------------------------------------------------------------
A Fe3600-4/2 DchUnreachables-1 : 103285456899 : 2018-05-15 15:34:55 : 2018-05-15 15:35:07
Basically when the LCs are not ready and up, the Fabric modules don't know where to forward the packets, they will drop them and increase this counter. It is quite common during system booting up.
This command "sh hardware counter drop" works great in 4.17 and helped me discover a bug (181627) that was mitigated by going to a newer 4.17 EOS release. Other switches that we have upgraded to 4.20.7M do not seem to recognize the command "sh hardware counter drop". What is the new command to get the same information. Thanks
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