With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
pnniMapNodeIAmLeader
pnni Map Node I Am Leader
1.3.6.1.4.1.353.5.4.1.1.15.1.8
Indicates whether the originating node claims to be peer group leader of its peer group. This attribute reflects the setting of the 'I am Leader' bit received in the nodal information PTSE of the originating node.
Back to PNNI-MIB MIB page.
IPHost Network monitor allows you to monitor pnniMapNodeIAmLeader on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.