With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
coIfDwdmChannelGroupSpacing
co If Dwdm Channel Group Spacing
1.3.6.1.4.1.9.10.66.1.3.3.1.2
The difference in frequency between successive bits in coIfDwdmChannelGroupBitmap. This is typically the frequency difference between adjacent channels in the DWDM system.
Back to CISCO-OPTICAL-IF-EXTN-MIB MIB page.
IPHost Network monitor allows you to monitor coIfDwdmChannelGroupSpacing on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco mobile switches right now.