All MIBs › EdgeSwitch-QOS-COS-MIB › agentCosQueueMgmtWredDropProbScale
agentCosQueueMgmtWredDropProbScale
Module: EdgeSwitch-QOS-COS-MIB
OID (symbolic): EdgeSwitch-QOS-COS-MIB::agentCosQueueMgmtWredDropProbScale
OID (numeric): 1.3.6.1.4.1.4413.1.1.3.3.2.5.1.5
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 agentCosQueueMgmtWredMinThreshold is reached and proceeds linearly up to the (2**S) value specified by this object until the agentCosQueueMgmtWredMaxThreshold 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 agentCosQueueMgmtType is set to wred(2).
What is agentCosQueueMgmtWredDropProbScale?
Obsolete WRED drop-probability scaling factor S (1-15, default 10) for this drop-precedence level; drop probability follows 1/(2**S), so smaller S values drop packets more aggressively as the queue fills between the WRED min and max thresholds.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.4413.1.1.3.3.2.5.1.5 snmpwalk -v2c -c public <target> EdgeSwitch-QOS-COS-MIB::agentCosQueueMgmtWredDropProbScale
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.4413.1.1.3.3.2.5.1.5.1 snmpget -v2c -c public <target> EdgeSwitch-QOS-COS-MIB::agentCosQueueMgmtWredDropProbScale.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.4413.1.1.3.3.2.5.1.5.1 i <value>
Start monitoring Ubiquiti EdgeSwitch (Broadcom FastPath-based) switch (CoS queue mapping/802.1p priority) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the EdgeSwitch-QOS-COS-MIB::agentCosQueueMgmtWredDropProbScale OID value, configure state conditions and alerts, and monitor any Ubiquiti EdgeSwitch (Broadcom FastPath-based) switch (CoS queue mapping/802.1p priority) 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 |
| 1.3.6.1.4.1.4413 | broadcom | BASP-Config-MIB |
| 1.3.6.1.4.1.4413.1 | enet | BASP-Config-MIB |
| 1.3.6.1.4.1.4413.1.1 | fastPath | EdgeSwitch-REF-MIB |
| 1.3.6.1.4.1.4413.1.1.3 | fastPathQOS | EdgeSwitch-QOS-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.4413.1.1.3.3 | fastPathQOSCOS | EdgeSwitch-QOS-COS-MIB |
| 1.3.6.1.4.1.4413.1.1.3.3.2 | agentCosQueueCfgGroup | EdgeSwitch-QOS-COS-MIB |
| 1.3.6.1.4.1.4413.1.1.3.3.2.5 | agentCosQueueMgmtTable | EdgeSwitch-QOS-COS-MIB |
| 1.3.6.1.4.1.4413.1.1.3.3.2.5.1 | agentCosQueueMgmtEntry | EdgeSwitch-QOS-COS-MIB |
| 1.3.6.1.4.1.4413.1.1.3.3.2.5.1.5 | agentCosQueueMgmtWredDropProbScale | EdgeSwitch-QOS-COS-MIB |