With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ptopoConnAgentNetAddrType
ptopo Connection Agent Net Addr Type
1.3.6.1.2.1.79.1.1.1.1.10
This network address type of the associated ptopoConnNetAddr object, unless that object contains a zero length string. In such a case, an NMS application should ignore any returned value for this object. This object may not be modified if the associated ptopoConnRowStatus object has a value of active(1).
Back to PTOPO-MIB MIB page.
IPHost Network monitor allows you to monitor ptopoConnAgentNetAddrType on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.