All MIBs › CXX25-MIB › x25UpperPoolThreshold
x25UpperPoolThreshold
Module: CXX25-MIB
OID (symbolic): CXX25-MIB::x25UpperPoolThreshold
OID (numeric): 1.3.6.1.4.1.495.2.1.6.29.2
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-write
Description: Determines the amount of system resources which are required by the X.25 layer to avoid congestion. When system resources drop below this threshold, the X.25 layer does the following:
- prohibits new virtual circuits from being established on any SAP (service access point)
- initiates flow control on all existing virtual circuits receiving data (an RNR is transmitted on each circuit)
When global resources rise above this threshold after having dropped below it, the X.25 layer does the following:
- it disables flow control on all suspended virtual circuits (transmits a RR on each circuit that that it previously transmitted an RNR on)
- permits new virtual circuits to be established
The value of this object must not be less than the value of object x25LowerPoolThreshold.
Range of Values: 1 - 99
Default Value: 40 (40 percent)
Related Objects: x25LowerPoolThreshold x25SapFlowControlTimer
Configuration Changed: administrative
What is x25UpperPoolThreshold?
Sets the percentage of available system resources, in the range 1-99, below which the X.25 layer begins protecting itself from congestion by refusing new virtual circuits and issuing RNR flow control on existing ones; once resources climb back above this threshold, new circuits are allowed again and flow control is lifted. An admin might raise this from the default 40 percent on a heavily loaded switch to trigger congestion protection earlier, before resource exhaustion causes packet loss. This value must always be set higher than x25LowerPoolThreshold.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.495.2.1.6.29.2 snmpwalk -v2c -c public <target> CXX25-MIB::x25UpperPoolThreshold
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.495.2.1.6.29.2.1 snmpget -v2c -c public <target> CXX25-MIB::x25UpperPoolThreshold.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.495.2.1.6.29.2.1 i <value>
SNMPv3 example:
snmpget -v3 -l authPriv -u snmpv3-user -a SHA -A "AuthPassword1" -x AES -X "PrivPassword1" <target> x25UpperPoolThreshold.1
Start monitoring Memotec/Aastra X.25 WAN access devices with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CXX25-MIB::x25UpperPoolThreshold OID value, configure state conditions and alerts, and monitor any Memotec/Aastra X.25 WAN access devices from a single console.
OID Breakdown
Upper-level ancestors (11 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 |
| 1.3.6.1.4.1.495 | memotec | MEMOTEC-SMI |
| 1.3.6.1.4.1.495.2 | memotecProducts | MEMOTEC-SMI |
| 1.3.6.1.4.1.495.2.1 | cxProduct | MEMOTEC-SMI |
| 1.3.6.1.4.1.495.2.1.6 | cxApplication | CXProduct-SMI |
| 1.3.6.1.4.1.495.2.1.6.29 | cxX25 | CXProduct-SMI |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.495.2.1.6.29.2 | x25UpperPoolThreshold | CXX25-MIB |