FR-ATM-PVC-SERVICE-IWF-MIB :: frAtmIwfConnCongestionMappingMode

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › FR-ATM-PVC-SERVICE-IWF-MIB › frAtmIwfConnCongestionMappingMode

frAtmIwfConnCongestionMappingMode

Module: FR-ATM-PVC-SERVICE-IWF-MIB

OID (symbolic): FR-ATM-PVC-SERVICE-IWF-MIB::frAtmIwfConnCongestionMappingMode

OID (numeric): 1.3.6.1.2.1.86.1.4.1.5

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-create

Description: This object describes which mode of translation is in use for forward congestion indication mapping in the frame relay to ATM direction.

mode1(1) = The FECN field in the Q.922 core frame shall be mapped to the ATM EFCI field of every cell generated by the segmentation process of the AAL5 PDU containing the information of that frame.

mode2(2) = The FECN field in the Q.922 core frame shall not be mapped to the ATM EFCI field of cells generated by the segmentation process of the AAL5 PDU containing the information of that frame. The EFCI field is always set to 'congestion not experienced'.

In both of the modes above, if there is congestion in the forward direction in the ATM layer within the IWF, then the IWF can set the EFCI field to 'congestion experienced'.

What is frAtmIwfConnCongestionMappingMode?

Read-create enumeration choosing how frame relay's FECN congestion bit maps to ATM's EFCI field in the frame-relay-to-ATM direction: mode1(1) copies FECN into EFCI, while mode2(2) leaves EFCI always at 'congestion not experienced' from FECN (the IWF can still set EFCI itself on real ATM-layer congestion). Defaults to mode1.

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
1.3.6.1.2mgmtAPERTUS-NPG-MIB
1.3.6.1.2.1mib_2AXON-MIB
Numeric OIDNameModule
1.3.6.1.2.1.86frAtmIwfMIBFR-ATM-PVC-SERVICE-IWF-MIB
1.3.6.1.2.1.86.1frAtmIwfMIBObjectsFR-ATM-PVC-SERVICE-IWF-MIB
1.3.6.1.2.1.86.1.4frAtmIwfConnectionDescriptorTableFR-ATM-PVC-SERVICE-IWF-MIB
1.3.6.1.2.1.86.1.4.1frAtmIwfConnectionDescriptorEntryFR-ATM-PVC-SERVICE-IWF-MIB
1.3.6.1.2.1.86.1.4.1.5frAtmIwfConnCongestionMappingModeFR-ATM-PVC-SERVICE-IWF-MIB