With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
clrRedPreempt
clr Red Preempt
1.3.6.1.4.1.9.9.650.1.1.3.1.4
This specifies whether a high priority redundancy device can become active irrespective of the time at which it is online. The value 'true' specifies that the redundancy group with higher priority will always become active. The value 'false' specifies that the redundacy device which becomes active will remain active even if another redundancy device comes online with higher priority.
Back to CISCO-L4L7MODULE-REDUNDANCY-MIB MIB page.
IPHost Network monitor allows you to monitor clrRedPreempt 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.