With IPHost Network Monitor you can run simple snmp requests against a IBM device in your network.
ipv6AddrPrefixLength
ipv6 Address Prefix Length
1.3.6.1.2.1.55.1.7.1.2
The length of the prefix (in bits).
Back to ibm-ipv6 MIB page.
IPHost Network monitor allows you to monitor ipv6AddrPrefixLength on IBM device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring IBM storage servers right now.