FRX-MIB :: portLastUnknownDLCI

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › FRX-MIB › portLastUnknownDLCI

portLastUnknownDLCI

Module: FRX-MIB

OID (symbolic): FRX-MIB::portLastUnknownDLCI

OID (numeric): 1.3.6.1.4.1.177.3.3.2.1.18

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-only

Description: The DLCI number of the last frame with an unknown DLCI. A value of -1 signifies that no unknown DLCI has yet been received.

What is portLastUnknownDLCI?

Records the DLCI number carried by the most recent frame that arrived with an unrecognized DLCI, so an admin troubleshooting portUnknownDLCIFrames knows exactly which circuit ID to go investigate; a value of -1 (outside the normal 16-991 DLCI range) means no unknown-DLCI frame has been seen yet.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.177.3.3.2.1.18
snmpwalk -v2c -c public <target> FRX-MIB::portLastUnknownDLCI

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.177.3.3.2.1.18.1
snmpget -v2c -c public <target> FRX-MIB::portLastUnknownDLCI.1

Start monitoring Legacy frame relay switch/access node (Netrix/FastComm-style FRX platform) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the FRX-MIB::portLastUnknownDLCI OID value, configure state conditions and alerts, and monitor any Legacy frame relay switch/access node (Netrix/FastComm-style FRX platform) from a single console.

OID Breakdown

Upper-level ancestors (6 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
Numeric OIDNameModule
1.3.6.1.4.1.177netFRX-MIB
1.3.6.1.4.1.177.3frxFRX-MIB
1.3.6.1.4.1.177.3.3portFRX-MIB
1.3.6.1.4.1.177.3.3.2portStatusTableFRX-MIB
1.3.6.1.4.1.177.3.3.2.1portStatusEntryFRX-MIB
1.3.6.1.4.1.177.3.3.2.1.18portLastUnknownDLCIFRX-MIB