With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cD11HtPhyGreenFieldEnabled
Cisco DOT11 High-Throughput Physical Green Field Enabled
1.3.6.1.4.1.9.9.607.1.1.2.1.12
This object, when set to 'true', indicates that the Greenfield option is enabled.
Back to CISCO-DOT11-HT-PHY-MIB MIB page.
IPHost Network monitor allows you to monitor cD11HtPhyGreenFieldEnabled on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.