With IPHost Network Monitor you can run simple snmp requests against a NETGEAR device in your network.
agentCosQueueIndex
agent Cos Queue Index
1.3.6.1.4.1.4526.10.3.3.2.4.1.1
The COS queue index, numbered 0 to (n-1), where n is the total number of configurable interface queues for the device as indicated by agentCosQueueNumQueuesPerPort. In general, a higher numbered queue index is used to support higher priority traffic, although actual operation may be altered via configuration through this table.
Back to NETGEAR-QOS-COS-MIB MIB page.
IPHost Network monitor allows you to monitor agentCosQueueIndex on NETGEAR device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring NETGEAR cable modems right now.