With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
portErrors
port Errors
1.3.6.1.4.1.7505.1.1.15.1.8
The number of centiseconds during which PBX protocol errors were detected for this port. It is normal for there to be some errors, especially during port initialization, but very large values should only be seen on disconnected ports.
Back to CALISTA-DPA-MIB MIB page.
IPHost Network monitor allows you to monitor portErrors 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.