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Hi,This seems to be a hardware fault with either of the flex stack unit or the cable between them.you can engage TAC for RMA of the involved hardware if they are under contract.Regards,Utkarsh
Hi,if you are sure that there is no version mismatch, no license mismatch, and no template misconfiguration then,Check with doing a loopback test on your cables.connect the cable from port 1 to port 2 of the same switch, check for log if it's coming ...
Currently the suggestd IOS-XE release for 3850 is 16.6.5
https://www.cisco.com/c/en/us/products/collateral/switches/catalyst-3650-series-switches/bulletin-c25-737420.html
Here are some of the document which can come handy while working and troubles...
Hi,
Which Is the IOS Version you are running?
There had been Some instances of buggy behaviour on 3850 running 3.6.x code and 3.7.x code.
there could be a hit to these below
https://bst.cloudapps.cisco.com/bugsearch/bug/CSCuz57493/
https://bst.cl...
Hi,
It seems you have a large amount of DHCP traffic running through the switch.
DHCPD could go high when multiple SVI have IP helper addresses configured in them.
As all the DHCP broadcasts are handled by CPU.
check with following if you are seeing ...
