All MIBs › FCMGMT-MIB › connUnitPortStatCountClass3Discards
connUnitPortStatCountClass3Discards
Module: FCMGMT-MIB
OID (symbolic): FCMGMT-MIB::connUnitPortStatCountClass3Discards
OID (numeric): 1.3.6.1.3.94.4.5.1.28
Node type: OBJECT-TYPE
Type: OCTET STRING
Access: read-only
Description: Count of Class 3 Frames that were discarded upon reception at this port. There is no FBSY or FRJT generated for Class 3 Frames. They are simply discarded if they cannot be delivered. Note, this is a Fibre Channel only stat.
What is connUnitPortStatCountClass3Discards?
A 64-bit counter of Class 3 frames silently discarded on receipt because they couldn't be delivered - unlike Class 1/2, Class 3 has no FBSY/FRJT busy-or-reject signaling, so undeliverable frames are simply dropped. A rising count here can indicate congestion or a routing problem for storage traffic.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.3.94.4.5.1.28 snmpwalk -v2c -c public <target> FCMGMT-MIB::connUnitPortStatCountClass3Discards
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.3.94.4.5.1.28.1 snmpget -v2c -c public <target> FCMGMT-MIB::connUnitPortStatCountClass3Discards.1
SNMPv3 example:
snmpget -v3 -l authPriv -u snmpv3-user -a SHA -A "AuthPassword1" -x AES -X "PrivPassword1" <target> connUnitPortStatCountClass3Discards.1
Start monitoring Vendor-neutral Fibre Channel SAN switch/director, any manufacturer with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the FCMGMT-MIB::connUnitPortStatCountClass3Discards OID value, configure state conditions and alerts, and monitor any Vendor-neutral Fibre Channel SAN switch/director, any manufacturer from a single console.
OID Breakdown
Upper-level ancestors (8 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 |
| 1.3.6.1.3 | experimental | APERTUS-NPG-MIB |
| 1.3.6.1.3.94 | fcmgmt | FCMGMT-CNTL |
| 1.3.6.1.3.94.4 | statSet | FCMGMT-CNTL |
| 1.3.6.1.3.94.4.5 | connUnitPortStatTable | FCMGMT-CNTL |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.3.94.4.5.1 | connUnitPortStatEntry | FCMGMT-MIB |
| 1.3.6.1.3.94.4.5.1.28 | connUnitPortStatCountClass3Discards | FCMGMT-MIB |