With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cfcmPortInvalidTxWords
Fibre Channel Management Port Invalid Tx Words
1.3.6.1.4.1.9.10.999999.1.6.1.10
The number of invalid transmission words received at this port. This count is part of FC-PH's Link Error Status Block (LESB).
Back to CISCO-FC-MGMT-MIB MIB page.
IPHost Network monitor allows you to monitor cfcmPortInvalidTxWords 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.