With IPHost Network Monitor you can run simple snmp requests against a ADTRAN device in your network.
adFRPerformDayInvalidDLCI
Adtran Frame Perform Day Invalid DLCI
1.3.6.1.4.1.664.4.1.9.1.1.12
Number of frames received with a DLCI value less than 16 or greater than 1007 not including PVC signaling frames.
Back to ADTRAN-FRPerform-MIB MIB page.
IPHost Network monitor allows you to monitor adFRPerformDayInvalidDLCI on ADTRAN device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring ADTRAN access points right now.