Nortel-MsCarrier-MscPassport-FrameRelayIsdnMIB :: mscFrUniIsdnActiveVirtualCircuitsCount

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › Nortel-MsCarrier-MscPassport-FrameRelayIsdnMIB › mscFrUniIsdnActiveVirtualCircuitsCount

mscFrUniIsdnActiveVirtualCircuitsCount

Module: Nortel-MsCarrier-MscPassport-FrameRelayIsdnMIB

OID (symbolic): Nortel-MsCarrier-MscPassport-FrameRelayIsdnMIB::mscFrUniIsdnActiveVirtualCircuitsCount

OID (numeric): 1.3.6.1.4.1.562.36.2.1.71.100.12.1.5

Node type: OBJECT-TYPE

Type: Counter32

Access: read-only

Description: Current number of virtual circuits (switched and permanent) in data transfer.

What is mscFrUniIsdnActiveVirtualCircuitsCount?

This counter reports the current number of virtual circuits, both switched (SVC) and permanent (PVC), that are actively transferring data over this FrUni ISDN component. An admin monitors this value to gauge how heavily an ISDN-backed Frame Relay UNI is being used at any given moment. For example, a reading of 4 indicates four virtual circuits are currently passing traffic through this B-Channel-backed interface.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.562.36.2.1.71.100.12.1.5
snmpwalk -v2c -c public <target> Nortel-MsCarrier-MscPassport-FrameRelayIsdnMIB::mscFrUniIsdnActiveVirtualCircuitsCount

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.562.36.2.1.71.100.12.1.5.1
snmpget -v2c -c public <target> Nortel-MsCarrier-MscPassport-FrameRelayIsdnMIB::mscFrUniIsdnActiveVirtualCircuitsCount.1

Start monitoring Nortel MSC Passport mobile carrier switch / ISDN-signaled Frame Relay UNI port with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the Nortel-MsCarrier-MscPassport-FrameRelayIsdnMIB::mscFrUniIsdnActiveVirtualCircuitsCount OID value, configure state conditions and alerts, and monitor any Nortel MSC Passport mobile carrier switch / ISDN-signaled Frame Relay UNI port from a single console.

OID Breakdown

Upper-level ancestors (11 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
1.3.6.1.4.1.562.36.2.1.71mscFrUniNortel-MsCarrier-MscPassport-FrameRelayUniMIB
Numeric OIDNameModule
1.3.6.1.4.1.562.36.2.1.71.100mscFrUniIsdnNortel-MsCarrier-MscPassport-FrameRelayIsdnMIB
1.3.6.1.4.1.562.36.2.1.71.100.12mscFrUniIsdnOperTableNortel-MsCarrier-MscPassport-FrameRelayIsdnMIB
1.3.6.1.4.1.562.36.2.1.71.100.12.1mscFrUniIsdnOperEntryNortel-MsCarrier-MscPassport-FrameRelayIsdnMIB
1.3.6.1.4.1.562.36.2.1.71.100.12.1.5mscFrUniIsdnActiveVirtualCircuitsCountNortel-MsCarrier-MscPassport-FrameRelayIsdnMIB