With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
frxH4EsRx
Cisco 90i H4 Errored Seconds Rx
1.3.6.1.4.1.1570.1.6.5.1.12
Errored Seconds 4 hours ago - Receive direction. Receive is data from the customer towards the network. Errored Seconds are seconds in which one or more block errors occur. These errors are measured at the physical link level (e.g. DSL CRC or BPV errors) and not at the frame relay level. This register is defined by Bellcore TR-TSY-000829. Indexed by Bank.ChannelUnit.Port.Address
Back to CISCO-90-MIB MIB page.
IPHost Network monitor allows you to monitor frxH4EsRx on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.