ACE20-MIB :: atmSuSystemOperMode

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsACE20-MIBatmSuSystemOperMode

atmSuSystemOperMode

Module: ACE20-MIB

OID (symbolic): ACE20-MIB::atmSuSystemOperMode

OID (numeric): 1.3.6.1.4.1.164.12.4.1.12

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-only

Description: The field indicates device mode of operation: ima (2) = Inverse Multiplex ATM - ATM traffic is distributed between links in IMA group. miniDSLAM (3) => each link serves as separate ATM interface.

What is atmSuSystemOperMode?

This read-only OID indicates whether the device is running in IMA (Inverse Multiplex ATM) mode that bonds multiple links into one, or miniDSLAM mode where each link operates independently. Engineers check this during initial setup and troubleshooting to confirm the device is operating in the mode they intended. A value of ima(2) means traffic is being distributed and load-balanced across multiple ATM links for better throughput.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.164.12.4.1.12
snmpwalk -v2c -c public <target> ACE20-MIB::atmSuSystemOperMode

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.164.12.4.1.12.1
snmpget -v2c -c public <target> ACE20-MIB::atmSuSystemOperMode.1

SNMPv3 example:

snmpget -v3 -l authPriv -u snmpv3-user -a SHA -A "AuthPassword1" -x AES -X "PrivPassword1" <target> atmSuSystemOperMode.1

Start monitoring Nortel ACE 20 ATM concentrator (legacy) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the ACE20-MIB::atmSuSystemOperMode OID value, configure state conditions and alerts, and monitor any Nortel ACE 20 ATM concentrator (legacy) from a single console.

OID Breakdown

Upper-level ancestors (8 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
1.3.6.1.4.1.164radDACS-MIB
1.3.6.1.4.1.164.12radAtmRAD-MIB
Numeric OIDNameModule
1.3.6.1.4.1.164.12.4atmSuACE20-MIB
1.3.6.1.4.1.164.12.4.1atmSuSystemACE20-MIB
1.3.6.1.4.1.164.12.4.1.12atmSuSystemOperModeACE20-MIB