All MIBs › Nortel-MsCarrier-MscPassport-ApsMIB › mscApsSignalDegradeRatio
mscApsSignalDegradeRatio
Module: Nortel-MsCarrier-MscPassport-ApsMIB
OID (symbolic): Nortel-MsCarrier-MscPassport-ApsMIB::mscApsSignalDegradeRatio
OID (numeric): 1.3.6.1.4.1.562.36.2.1.134.11.1.8
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-write
Description: This attribute specifies the minimum bit error ratio (BER) for which a Signal Degrade failure is declared. Its value is the exponent of the BER, with possible values of -5 through -9 inclusive, which correspond to a BER range of 10-5 through 10-9.
The switch initiation time for a Signal Degrade varies depending on the observed BER (not the provisioned signalDegradeRatio), as described in the following table.
Observed BER Switch Initiation Time 10-3 10 milliseconds 10-4 100 milliseconds 10-5 1 second 10-6 10 seconds 10-7 100 seconds 10-8 16 minutes 40 seconds 10-9 2 hours 46 minutes 40 seconds
The clearing threshold for a Signal Degrade is one-tenth the signalDegradeRatio; for example, if the provisioned signalDegradeRatio is -5, the corresponding clearing threshold will be 10-6. The clearing time varies depending on the clearing threshold (not the observed BER), and can be determined from the above table.
What is mscApsSignalDegradeRatio?
This read-write value (-9 to -5, default -5) sets the bit error rate exponent threshold used to declare a Signal Degrade failure, e.g. -5 means a BER of 10^-5 triggers SD; the clearing threshold is automatically one-tenth this ratio. Lower this (e.g. to -9) to make the line much more tolerant of errors before triggering a protection switch, at the cost of slower fault detection.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.562.36.2.1.134.11.1.8 snmpwalk -v2c -c public <target> Nortel-MsCarrier-MscPassport-ApsMIB::mscApsSignalDegradeRatio
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.562.36.2.1.134.11.1.8.1 snmpget -v2c -c public <target> Nortel-MsCarrier-MscPassport-ApsMIB::mscApsSignalDegradeRatio.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.562.36.2.1.134.11.1.8.1 i <value>
SNMPv3 example:
snmpget -v3 -l authPriv -u snmpv3-user -a SHA -A "AuthPassword1" -x AES -X "PrivPassword1" <target> mscApsSignalDegradeRatio.1
Start monitoring Nortel MsCarrier MscPassport switch (SONET Automatic Protection Switching) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the Nortel-MsCarrier-MscPassport-ApsMIB::mscApsSignalDegradeRatio OID value, configure state conditions and alerts, and monitor any Nortel MsCarrier MscPassport switch (SONET Automatic Protection Switching) from a single console.
OID Breakdown
Upper-level ancestors (10 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 | Nortel-Magellan-Passport-UsefulDefinitionsMIB |
| 1.3.6.1.4.1.562.36 | msCarrier | Nortel-MsCarrier-MscPassport-UsefulDefinitionsMIB |
| 1.3.6.1.4.1.562.36.2 | mscPassport | Nortel-MsCarrier-MscPassport-UsefulDefinitionsMIB |
| 1.3.6.1.4.1.562.36.2.1 | mscComponents | Nortel-MsCarrier-MscPassport-UsefulDefinitionsMIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.562.36.2.1.134 | mscAps | Nortel-MsCarrier-MscPassport-ApsMIB |
| 1.3.6.1.4.1.562.36.2.1.134.11 | mscApsProvTable | Nortel-MsCarrier-MscPassport-ApsMIB |
| 1.3.6.1.4.1.562.36.2.1.134.11.1 | mscApsProvEntry | Nortel-MsCarrier-MscPassport-ApsMIB |
| 1.3.6.1.4.1.562.36.2.1.134.11.1.8 | mscApsSignalDegradeRatio | Nortel-MsCarrier-MscPassport-ApsMIB |