All MIBs › IPAD-ATM-MIB › ipadAtmOverSubscriptionFactor
ipadAtmOverSubscriptionFactor
Module: IPAD-ATM-MIB
OID (symbolic): IPAD-ATM-MIB::ipadAtmOverSubscriptionFactor
OID (numeric): 1.3.6.1.4.1.321.100.1.25.1.1.1.6
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-write
Description: The current over-subscription-factor for this ATM interface. Used for VBR and UBR VC connection admission control to allow the either VBR or UBR service category connections to collectively use more bandwidth than is available in order to make use of the statistical multiplexing of the connections. The PCR of each individual VC is limited to the interface's line rate. However when multiple VCs are configured, the sum of their PCR values can go up to (OverSubscriptionFactor * (line-rate) / 53*8). A value of 1 indicates no oversubscription allowed. A value of 5 indicates 5 times oversubscription allowed. Note that CBR connections cannot be oversubscribed. Also, if CES is in use on the interface, all AAL5 connections have their PCR limited to the amount which the line rate can support above the commitment for CES, and the oversubscription applies only to that bandwidth above the CES commitment.
What is ipadAtmOverSubscriptionFactor?
Configures how much VBR/UBR traffic on this ATM interface can be oversubscribed relative to line rate to exploit statistical multiplexing — 1 means no oversubscription, 5 means VCs' combined PCR can total 5x the line rate's cell capacity; CBR VCs are never oversubscribed, and if CES is active the oversubscription only applies above the CES bandwidth commitment. An admin raises this from 1 to, say, 4 to pack more best-effort/variable-rate VCs onto a link that rarely sees all of them peak simultaneously.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.321.100.1.25.1.1.1.6 snmpwalk -v2c -c public <target> IPAD-ATM-MIB::ipadAtmOverSubscriptionFactor
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.321.100.1.25.1.1.1.6.1 snmpget -v2c -c public <target> IPAD-ATM-MIB::ipadAtmOverSubscriptionFactor.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.321.100.1.25.1.1.1.6.1 i <value>
Start monitoring Verilink IPAD ATM access multiplexer with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the IPAD-ATM-MIB::ipadAtmOverSubscriptionFactor OID value, configure state conditions and alerts, and monitor any Verilink IPAD ATM access multiplexer 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 |
| 1.3.6.1.4.1.321 | verilink | DS8200v2-TC-MIB |
| 1.3.6.1.4.1.321.100 | hbu | DS8200v2-TC-MIB |
| 1.3.6.1.4.1.321.100.1 | ipad | IPAD-IPSTART-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.321.100.1.25 | ipadAtm | IPAD-ATM-MIB |
| 1.3.6.1.4.1.321.100.1.25.1 | ipadAtmParms | IPAD-ATM-MIB |
| 1.3.6.1.4.1.321.100.1.25.1.1 | ipadAtmTable | IPAD-ATM-MIB |
| 1.3.6.1.4.1.321.100.1.25.1.1.1 | ipadAtmTableEntry | IPAD-ATM-MIB |
| 1.3.6.1.4.1.321.100.1.25.1.1.1.6 | ipadAtmOverSubscriptionFactor | IPAD-ATM-MIB |