All MIBs › Nortel-Magellan-Passport-AtmBaseMIB › lpEngArcAqmTxCellMemoryCongestionState
lpEngArcAqmTxCellMemoryCongestionState
Module: Nortel-Magellan-Passport-AtmBaseMIB
OID (symbolic): Nortel-Magellan-Passport-AtmBaseMIB::lpEngArcAqmTxCellMemoryCongestionState
OID (numeric): 1.3.6.1.4.1.562.2.4.1.12.23.5.4.10.1.7
Node type: OBJECT-TYPE
Type: Gauge32
Access: read-only
Description: This attribute indicates the congestion state of the transmit cell memory for the ATM Queue Manager (AQM) ASIC on this FP.
This attribute indicates which txCellMemoryThresholds corresponds to the current value of txCellMemoryUsage. The congestion state is used to determine if cells of a particular discard priority (DP) are discarded before being queued for transmit.
The congestion state of transmit cell memory is indicated by a numeric value ranging from 3 to 0. When transmit cell memory is in congestion state 'x', traffic with DP > 'x' is discarded before transmit. Traffic with DP < 'x' may be queued for transmit, depending on the congestion level of the connection transmit queue. Traffic with DP = 'x' may be either queued or discarded depending on how close the value of txCellMemoryUsage is to the next threshold as displayed in txCellMemoryThresholds. For example, CLP1 traffic is queued until the value indicated by txCellMemoryUsage equals the value indicated in txCellMemoryThresholds 3. At that point, CLP1 traffic is discarded.
What is lpEngArcAqmTxCellMemoryCongestionState?
Reports this AQM instance's transmit cell memory congestion level (0-3): traffic with discard priority greater than the current state is dropped before transmit, so an admin sees this fall toward 0 as the AQM sheds lower-priority ATM cells.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.562.2.4.1.12.23.5.4.10.1.7 snmpwalk -v2c -c public <target> Nortel-Magellan-Passport-AtmBaseMIB::lpEngArcAqmTxCellMemoryCongestionState
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.562.2.4.1.12.23.5.4.10.1.7.1 snmpget -v2c -c public <target> Nortel-Magellan-Passport-AtmBaseMIB::lpEngArcAqmTxCellMemoryCongestionState.1
Start monitoring Nortel Magellan Passport ATM WAN switch (base ATM interface) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the Nortel-Magellan-Passport-AtmBaseMIB::lpEngArcAqmTxCellMemoryCongestionState OID value, configure state conditions and alerts, and monitor any Nortel Magellan Passport ATM WAN switch (base ATM interface) from a single console.
OID Breakdown
Upper-level ancestors (12 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.562 | nortel | CPM-NORTEL-MIB |
| 1.3.6.1.4.1.562.2 | magellan | Nortel-Magellan-Passport-UsefulDefinitionsMIB |
| 1.3.6.1.4.1.562.2.4 | passport | Nortel-Magellan-Passport-UsefulDefinitionsMIB |
| 1.3.6.1.4.1.562.2.4.1 | components | Nortel-Magellan-Passport-UsefulDefinitionsMIB |
| 1.3.6.1.4.1.562.2.4.1.12 | lp | Nortel-Magellan-Passport-LogicalProcessorMIB |
| 1.3.6.1.4.1.562.2.4.1.12.23 | lpEng | Nortel-Magellan-Passport-LogicalProcessorMIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.562.2.4.1.12.23.5 | lpEngArc | Nortel-Magellan-Passport-AtmBaseMIB |
| 1.3.6.1.4.1.562.2.4.1.12.23.5.4 | lpEngArcAqm | Nortel-Magellan-Passport-AtmBaseMIB |
| 1.3.6.1.4.1.562.2.4.1.12.23.5.4.10 | lpEngArcAqmOperTable | Nortel-Magellan-Passport-AtmBaseMIB |
| 1.3.6.1.4.1.562.2.4.1.12.23.5.4.10.1 | lpEngArcAqmOperEntry | Nortel-Magellan-Passport-AtmBaseMIB |
| 1.3.6.1.4.1.562.2.4.1.12.23.5.4.10.1.7 | lpEngArcAqmTxCellMemoryCongestionState | Nortel-Magellan-Passport-AtmBaseMIB |