With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cIsnsRegPgPortalPortType
Cisco iSNS Registered Pg Portal Port Type
1.3.6.1.4.1.9.10.116.1.1.7.3.1.1.7
The port type, either UDP or TCP, for the Portal that is associated with this registered PG object.
Back to CISCO-IETF-ISNS-MGMT-MIB MIB page.
IPHost Network monitor allows you to monitor cIsnsRegPgPortalPortType 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.