All MIBs › HM2-PLATFORM-QOS-COS-MIB › hm2AgentCosQueueWredDecayExponent
hm2AgentCosQueueWredDecayExponent
Module: HM2-PLATFORM-QOS-COS-MIB
OID (symbolic): HM2-PLATFORM-QOS-COS-MIB::hm2AgentCosQueueWredDecayExponent
OID (numeric): 1.3.6.1.4.1.248.12.3.3.2.3.1.4
Node type: OBJECT-TYPE
Type: Unsigned32
Access: read-write
Description: The decay exponent value used with the weighted random early discard (WRED) algorithm to determine how quickly the average queue length calculation reacts to the current length of the queue. A higher value produces a slower response, meaning previously sampled queue length values are factored into the calculation for a longer period of time. The default value is 9.
Use caution when changing this value from its default. If set too low, short traffic bursts can cause WRED to drop too many packets. If set too high, WRED might not detect queue congestion in a timely manner and becomes ineffective. The default value should be sufficient for most users.
This object value is only used when the hm2AgentCosQueueMgmtType is set to wred(2) and is otherwise ignored.
What is hm2AgentCosQueueWredDecayExponent?
The decay exponent (0-15, default 9) controlling how quickly WRED's average queue length calculation reacts to the current queue length; higher values mean a slower, smoother response. Setting it too low lets WRED overreact to short traffic bursts and drop excessively, while too high makes it slow to detect real congestion — only takes effect when hm2AgentCosQueueMgmtTypeIntf is wred.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.248.12.3.3.2.3.1.4 snmpwalk -v2c -c public <target> HM2-PLATFORM-QOS-COS-MIB::hm2AgentCosQueueWredDecayExponent
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.248.12.3.3.2.3.1.4.1 snmpget -v2c -c public <target> HM2-PLATFORM-QOS-COS-MIB::hm2AgentCosQueueWredDecayExponent.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.248.12.3.3.2.3.1.4.1 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::hm2AgentCosQueueWredDecayExponent 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 |
| 1.3.6.1.4.1.248.12.3.3.2.3 | hm2AgentCosQueueControlTable | HM2-PLATFORM-QOS-COS-MIB |
| 1.3.6.1.4.1.248.12.3.3.2.3.1 | hm2AgentCosQueueControlEntry | HM2-PLATFORM-QOS-COS-MIB |
| 1.3.6.1.4.1.248.12.3.3.2.3.1.4 | hm2AgentCosQueueWredDecayExponent | HM2-PLATFORM-QOS-COS-MIB |