With IPHost Network Monitor you can run simple snmp requests against a NETGEAR device in your network.
agentDiffServServiceIfOperStatus
agent Diff Server Service If Operational Status
1.3.6.1.4.1.4526.10.3.7.4.1.1.4
The current operational state of the DiffServ service interface. If agentDiffServGenStatusAdminMode is disable(2) then agentDiffServServiceIfOperStatus should be down(2). If agentDiffServServiceGenStatusAdminMode is changed to enable(1) then agentDiffServServiceIfOperStatus should change to up(1) if the service interface is ready to send and receive DiffServ traffic; it should remain in the down(2) state if the underlying interface hardware is not in a link up condition, if the policy definition represented by agentDiffServServicePolicyIndex is incompatible with the interface (e.g., requires more bandwidth than the current capacity of the interface), or if the policy definition is considered to be incomplete (e.g., one or more composite rows is not in the active(1) state).
Back to NETGEAR-QOS-DIFFSERV-PRIVATE-MIB MIB page.
IPHost Network monitor allows you to monitor agentDiffServServiceIfOperStatus on NETGEAR device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring NETGEAR switches right now.