With IPHost Network Monitor you can run simple snmp requests against a HP device in your network.
hpRptrMonPtUcastPackets
hp Rptr Monitor Port Ucast Packets
1.3.6.1.4.1.11.2.14.11.2.2.3.1.1.3
This counter is incremented by one for each unicast packet of valid frame length received on this port. This object may not be implemented for repeaters which do not have a local network management agent.
Back to hpprocurve-v2-hprptr MIB page.
IPHost Network monitor allows you to monitor hpRptrMonPtUcastPackets 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 multiplexers right now.