All MIBs › HM2-PLATFORM-QOS-COS-MIB › hm2AgentCosQueueMgmtWredDropProbScale
hm2AgentCosQueueMgmtWredDropProbScale
Module: HM2-PLATFORM-QOS-COS-MIB
OID (symbolic): HM2-PLATFORM-QOS-COS-MIB::hm2AgentCosQueueMgmtWredDropProbScale
OID (numeric): 1.3.6.1.4.1.248.12.3.3.2.5.1.5
Node type: OBJECT-TYPE
Type: Unsigned32
Access: read-write
Description: A scaling factor used for the WRED calculation to determine the packet drop probability for the current drop precedence level. The value is specified as a number S from 1-15 and is used in the formula: 1/(2** S), meaning one packet is dropped out of every (2** S). Packet dropping begins when hm2AgentCosQueueMgmtWredMinThreshold is reached and proceeds linearly up to the (2**S) value specified by this object until the hm2AgentCosQueueMgmtWredMaxThreshold is reached, beyond which all packets are dropped. Smaller values of S produce a steeper slope, hence a higher incidence of randomly dropped packets.
The default value is 10, which corresponds to a drop rate of 1 out of every (2**10)=1024 packets.
This object is only used when hm2AgentCosQueueMgmtType is set to wred(2).
What is hm2AgentCosQueueMgmtWredDropProbScale?
Obsolete WRED drop-probability scaling factor S (1-15, default 10), used in the formula 1/(2^S) to set how aggressively packets are randomly dropped as the queue fills between the min and max WRED thresholds; smaller S means a steeper drop curve. It has been superseded by the percentage-based hm2AgentCosQueueMgmtWredDropProbability object, and only applies when hm2AgentCosQueueMgmtType is wred.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.248.12.3.3.2.5.1.5 snmpwalk -v2c -c public <target> HM2-PLATFORM-QOS-COS-MIB::hm2AgentCosQueueMgmtWredDropProbScale
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.248.12.3.3.2.5.1.5.1 snmpget -v2c -c public <target> HM2-PLATFORM-QOS-COS-MIB::hm2AgentCosQueueMgmtWredDropProbScale.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.248.12.3.3.2.5.1.5.1 i <value>
Start monitoring Hirschmann HiOS Platform2 industrial switch (802.1p CoS queue mapping) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the HM2-PLATFORM-QOS-COS-MIB::hm2AgentCosQueueMgmtWredDropProbScale OID value, configure state conditions and alerts, and monitor any Hirschmann HiOS Platform2 industrial switch (802.1p CoS queue mapping) from a single console.
OID Breakdown
Upper-level ancestors (9 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 |
| 1.3.6.1.4.1.248 | hirschmann | HIRSCHMANN-GENERIC-ERROR-MIB |
| 1.3.6.1.4.1.248.12 | hm2PlatformMibs | HM2-TC-MIB |
| 1.3.6.1.4.1.248.12.3 | hm2PlatformQoS | HM2-PLATFORM-QOS-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.248.12.3.3 | hm2PlatformQosCos | HM2-PLATFORM-QOS-COS-MIB |
| 1.3.6.1.4.1.248.12.3.3.2 | hm2AgentCosQueueCfgGroup | HM2-PLATFORM-QOS-COS-MIB |
| 1.3.6.1.4.1.248.12.3.3.2.5 | hm2AgentCosQueueMgmtTable | HM2-PLATFORM-QOS-COS-MIB |
| 1.3.6.1.4.1.248.12.3.3.2.5.1 | hm2AgentCosQueueMgmtEntry | HM2-PLATFORM-QOS-COS-MIB |
| 1.3.6.1.4.1.248.12.3.3.2.5.1.5 | hm2AgentCosQueueMgmtWredDropProbScale | HM2-PLATFORM-QOS-COS-MIB |