All MIBs › Nortel-Magellan-Passport-ApsMIB › apsSignalDegradeRatio
apsSignalDegradeRatio
Module: Nortel-Magellan-Passport-ApsMIB
OID (symbolic): Nortel-Magellan-Passport-ApsMIB::apsSignalDegradeRatio
OID (numeric): 1.3.6.1.4.1.562.2.4.1.134.11.1.8
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 apsSignalDegradeRatio?
This OID sets the minimum bit error ratio (BER) exponent (-9 to -5, corresponding to 10^-5 through 10^-9) at which a Signal Degrade failure is declared, defaulting to -5; the MIB notes the switch-initiation time varies from 10ms at 10^-3 up to nearly 3 hours at 10^-9. Admins tighten this (toward -9) to make the APS less sensitive to marginal bit-error activity before triggering a switchover.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.562.2.4.1.134.11.1.8 snmpwalk -v2c -c public <target> Nortel-Magellan-Passport-ApsMIB::apsSignalDegradeRatio
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.562.2.4.1.134.11.1.8.1 snmpget -v2c -c public <target> Nortel-Magellan-Passport-ApsMIB::apsSignalDegradeRatio.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.562.2.4.1.134.11.1.8.1 i <value>
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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 | 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 |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.562.2.4.1.134 | aps | Nortel-Magellan-Passport-ApsMIB |
| 1.3.6.1.4.1.562.2.4.1.134.11 | apsProvTable | Nortel-Magellan-Passport-ApsMIB |
| 1.3.6.1.4.1.562.2.4.1.134.11.1 | apsProvEntry | Nortel-Magellan-Passport-ApsMIB |
| 1.3.6.1.4.1.562.2.4.1.134.11.1.8 | apsSignalDegradeRatio | Nortel-Magellan-Passport-ApsMIB |