With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cIdslItucPerfCurr15MinHdlcShorts
Cisco Idsl ITU-C Performance Current 15 Minute Hdlc Shorts
1.3.6.1.4.1.9.9.154.1.6.1.18
This object specifies the number of short HDLC frames received by the ITU-C since agent in the current 15-minute interval. A short HDLC frame contains less than 5 octets.
Back to CISCO-IDSL-LINE-MIB MIB page.
IPHost Network monitor allows you to monitor cIdslItucPerfCurr15MinHdlcShorts on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.