Hi, We ran into this problem when we upgraded our 3750Xs to 15.0(2)SE6. This was resolved by disabling ip cef optimize neighbor resolutionNo ip cef optimize neighbor resolutionAs reference in this forum:https://supportforums.cisco.com/discussion/1221...
This snmp procedure saved me from a last minute reload and IOS change. Thank you !I was also lucky to have a RW SNMP community on the switch so that saved me a lot of trouble.I had to do this on a production 3750X-48T-S using Kaly with atftp. Very ea...