With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
Cisco Fibre Element If Hold Time
The maximum time that the FC-Port shall hold a frame in the transmitter buffer before discarding it, if it is unable to deliver the frame. The value 0 in this object means the frame will be discarded immediately if the port is unable to deliver the frame. Since this is a characteristic of a physical port, this object is not applicable for Port Channel ports, i.e., the value is instantiated but its value is irrelevant.
Back to CISCO-FC-FE-MIB MIB page.
IPHost Network monitor allows you to monitor fcIfHoldTime on Cisco device via the SNMP protocol.
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Easy monitoring of fcIfHoldTime with IPHost tools