Nortel-MsCarrier-MscPassport-CircuitEmulationServiceMIB :: mscAal1CesServiceType

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › Nortel-MsCarrier-MscPassport-CircuitEmulationServiceMIB › mscAal1CesServiceType

mscAal1CesServiceType

Module: Nortel-MsCarrier-MscPassport-CircuitEmulationServiceMIB

OID (symbolic): Nortel-MsCarrier-MscPassport-CircuitEmulationServiceMIB::mscAal1CesServiceType

OID (numeric): 1.3.6.1.4.1.562.36.2.1.119.11.1.1

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-write

Description: This attribute specifies the service type for the CES.

In an unstructured service, the entire data stream at the service interface (including any framing bits which may be present) is passed across the network transparently.

The unstructured service uses the Unstructured Data Transfer (UDT) mode of AAL1.

In a structured service, an Nx64kbit/s fraction of the data stream at the service interface is passed across the network. Two modes of structured service are supported: basicStructured and casStructured. In a casStructured service, the Channel Associated Signalling (CAS) bits are carried in a separate data structure from the Nx64 payload; in a basicStructured service they are not.

The structured service uses the Structured Data Transfer (SDT) mode as defined in ITU-T Recommendation I.363.1.

The serviceType attributes at both ends of a connection must be the same.

What is mscAal1CesServiceType?

Read-write setting that selects how this AAL1 circuit maps TDM data onto ATM: unstructured passes the whole bit stream transparently, while basicStructured/casStructured carry only an Nx64kbit/s fraction (with or without separate channel-associated signaling). Both ends of the connection must use the same value, so a mismatch here is a common cause of a circuit failing to come up.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.562.36.2.1.119.11.1.1
snmpwalk -v2c -c public <target> Nortel-MsCarrier-MscPassport-CircuitEmulationServiceMIB::mscAal1CesServiceType

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.562.36.2.1.119.11.1.1.1
snmpget -v2c -c public <target> Nortel-MsCarrier-MscPassport-CircuitEmulationServiceMIB::mscAal1CesServiceType.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.562.36.2.1.119.11.1.1.1 i <value>

Start monitoring Nortel MsCarrier MscPassport ATM switch (AAL1 Circuit Emulation Service) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the Nortel-MsCarrier-MscPassport-CircuitEmulationServiceMIB::mscAal1CesServiceType OID value, configure state conditions and alerts, and monitor any Nortel MsCarrier MscPassport ATM switch (AAL1 Circuit Emulation Service) from a single console.

OID Breakdown

Upper-level ancestors (10 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
1.3.6.1.4.1.562nortelCPM-NORTEL-MIB
1.3.6.1.4.1.562.36msCarrierNortel-MsCarrier-MscPassport-UsefulDefinitionsMIB
1.3.6.1.4.1.562.36.2mscPassportNortel-MsCarrier-MscPassport-UsefulDefinitionsMIB
1.3.6.1.4.1.562.36.2.1mscComponentsNortel-MsCarrier-MscPassport-UsefulDefinitionsMIB
Numeric OIDNameModule
1.3.6.1.4.1.562.36.2.1.119mscAal1CesNortel-MsCarrier-MscPassport-CircuitEmulationServiceMIB
1.3.6.1.4.1.562.36.2.1.119.11mscAal1CesProvTableNortel-MsCarrier-MscPassport-CircuitEmulationServiceMIB
1.3.6.1.4.1.562.36.2.1.119.11.1mscAal1CesProvEntryNortel-MsCarrier-MscPassport-CircuitEmulationServiceMIB
1.3.6.1.4.1.562.36.2.1.119.11.1.1mscAal1CesServiceTypeNortel-MsCarrier-MscPassport-CircuitEmulationServiceMIB