With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
pnniLinkDerivedAggrToken
pnni Link Derived Aggr Token
1.3.6.1.4.1.353.5.4.1.1.9.1.7
Indicates the derived aggregation token value used on this link. For horizontal links between lowest-level nodes and when the link type is not yet known, this attribute takes the value of zero.
Back to PNNI-MIB MIB page.
IPHost Network monitor allows you to monitor pnniLinkDerivedAggrToken on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco routers right now.