With IPHost Network Monitor you can run simple snmp requests against a HP device in your network.
hdlcXmtUnderruns
hdlc Xmt Underruns
1.3.6.1.4.1.11.2.14.3.7.6
Count of the number of times the transmitter has aborted a frame transmission because data was late from memory.
Back to hp-icf MIB page.
IPHost Network monitor allows you to monitor hdlcXmtUnderruns on Hewlett Packard 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.