With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
crcDstERSpanOption
crc Dst ER Span Option
1.3.6.1.4.1.9.9.103.1.2.5.1.16
Indicates the additional ERSPAN configuration on destination port. - inpkts(0) This bit is set to enable the destination port to receive incoming traffic. - learningDisable(1) This bit is set to suppress MAC learning for incoming traffic at the destination port. This object only takes effect when object crcERSpanSessionType is eRSpanDestination(2) and crcERSpanIfIndex of same ERSPAN session from crcERSpanIFTable points to a physical port. This object may be modified when the row is active. This object is deprecated and replaced by crcERSpanIFOption.
Back to CISCO-RMON-CONFIG-MIB MIB page.
IPHost Network monitor allows you to monitor crcDstERSpanOption 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.