With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cmnHistTimestamp
cmn Hist Timestamp
1.3.6.1.4.1.9.9.215.1.1.8.1.3
The value of sysUpTime when the cmnMacChangedNotification containing the information denoted by the cmnHistMacChangedMsg object in this entry was generated.
Back to CISCO-MAC-NOTIFICATION-MIB MIB page.
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