With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
pnniMapAggrToken
pnni Map Aggr Token
1.3.6.1.4.1.353.5.4.1.1.14.1.6
For horizontal links to/from LGNs and for uplinks, this attribute contains the derived aggregation token value for this link. For nodes and for horizontal links between lowest-level nodes, this attribute is set to zero.
Back to PNNI-MIB MIB page.
IPHost Network monitor allows you to monitor pnniMapAggrToken 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.