ACE20-MIB :: atmCESSigABBits

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsACE20-MIBatmCESSigABBits

atmCESSigABBits

Module: ACE20-MIB

OID (symbolic): ACE20-MIB::atmCESSigABBits

OID (numeric): 1.3.6.1.4.1.164.12.4.3.3.2.1.7

Node type: OBJECT-TYPE

Type: OCTET STRING

Access: read-write

Description: This attribute is applicable only when value of atmCESSigType is other. Represents the AB bits for Rx/Tx and their masks in this way: bits 7..6: Tx AB bits value, bits 5..4: Tx AB bits mask, bits 3..2: Rx AB bits value, bits 1..0: Rx AB bits mask. All bits must be 0 for CES connection.

What is atmCESSigABBits?

This OID encodes the AB signaling bits for both receive and transmit directions within a single octet, using bits 7–6 for Tx values, 5–4 for Tx mask, 3–2 for Rx values, and 1–0 for Rx mask. Network engineers only configure this for DBCES backup connections; standard CES must have all bits set to zero. A value of 0x00 is correct for regular CES; for DBCES, a value like 0xC0 would set specific signaling bits in the transmit direction.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.164.12.4.3.3.2.1.7
snmpwalk -v2c -c public <target> ACE20-MIB::atmCESSigABBits

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.164.12.4.3.3.2.1.7.1
snmpget -v2c -c public <target> ACE20-MIB::atmCESSigABBits.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.164.12.4.3.3.2.1.7.1 s <value>

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::atmCESSigABBits 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
1.3.6.1.4.1.164.12.4.3atmSuCrossConnectACE20-MIB
1.3.6.1.4.1.164.12.4.3.3atmSuAtmCbrACE20-MIB
1.3.6.1.4.1.164.12.4.3.3.2atmCESConfExtnsTableACE20-MIB
1.3.6.1.4.1.164.12.4.3.3.2.1atmCESConfExtnsEntryACE20-MIB
1.3.6.1.4.1.164.12.4.3.3.2.1.7atmCESSigABBitsACE20-MIB