All MIBs › FC-MGMT-MIB › fcmPortLossofSignals
fcmPortLossofSignals
Module: FC-MGMT-MIB
OID (symbolic): FC-MGMT-MIB::fcmPortLossofSignals
OID (numeric): 1.3.6.1.2.1.10.56.1.6.1.8
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description: The number of instances of signal loss detected at this port. This count is part of FC-PH's Link Error Status Block (LESB).
What is fcmPortLossofSignals?
This OID counts how many times the port lost its Fibre Channel signal, indicating a break in the connection. Operationally, a high count suggests physical problems like loose cables or failing transceivers that break the connection repeatedly. A storage network administrator uses this metric to spot intermittent fiber optic problems before they cause data loss.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.2.1.10.56.1.6.1.8 snmpwalk -v2c -c public <target> FC-MGMT-MIB::fcmPortLossofSignals
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.2.1.10.56.1.6.1.8.1 snmpget -v2c -c public <target> FC-MGMT-MIB::fcmPortLossofSignals.1
Start monitoring Vendor-neutral Fibre Channel-attached device, any manufacturer (RFC 4044) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the FC-MGMT-MIB::fcmPortLossofSignals OID value, configure state conditions and alerts, and monitor any Vendor-neutral Fibre Channel-attached device, any manufacturer (RFC 4044) from a single console.
OID Breakdown
Upper-level ancestors (7 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.2 | mgmt | AXON-MIB |
| 1.3.6.1.2.1 | mib_2 | AXON-MIB |
| 1.3.6.1.2.1.10 | transmission | CHECKPOINT-MIB-2 |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.2.1.10.56 | fcMgmtMIB | FC-MGMT-MIB |
| 1.3.6.1.2.1.10.56.1 | fcmgmtObjects | FC-MGMT-MIB |
| 1.3.6.1.2.1.10.56.1.6 | fcmPortErrorsTable | FC-MGMT-MIB |
| 1.3.6.1.2.1.10.56.1.6.1 | fcmPortErrorsEntry | FC-MGMT-MIB |
| 1.3.6.1.2.1.10.56.1.6.1.8 | fcmPortLossofSignals | FC-MGMT-MIB |