With IPHost Network Monitor you can run simple snmp requests against a IBM device in your network.
ipv6IfLastChange
ipv6 If Last Change
1.3.6.1.2.1.55.1.5.1.11
The value of sysUpTime at the time the interface entered its current operational state. If the current state was entered prior to the last re-initialization of the local network management subsystem, then this object contains a zero value.
Back to ibm-ipv6 MIB page.
IPHost Network monitor allows you to monitor ipv6IfLastChange on IBM device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring IBM Flex systems right now.