I am monitoring a Cisco 7201 router (IOS 15.0.1M4) with Orion NPM v10.1. This router has a POS (Packet Over Sonet) interface and NPM does not appear to be collecting statistics for this interface; all the graphs for bps, utilization, errors, etc. report 'No Data For Selected Time Period'. Even the Percent Utilization Radial Guages report -2% RECV and XMIT Utilization. I'm also monitoring a Gigabit Ethernet interface on the same router and it is working fine. I've tried removing and re-adding the node in NPM, but this has not helped. Any thoughs on what I can do to get this working? Thanks in advance.
To add, I am using SNMP v2c and allow 64 bit counters. I had read other monitoring product thread posts mentioning this would be needed for monitoing POS interfaces.