atmVnnT399
Module: ACMIB
OID (symbolic): ACMIB::atmVnnT399
OID (numeric): 1.3.6.1.4.1.1751.2.18.5.17.1.20
Node type: OBJECT-TYPE
Type: Integer32
Access: read-write
Description: Timer T399 value - seconds
What is atmVnnT399?
This OID stores the T399 timer value in seconds, which is a network-side timeout used between status enquiry retries when verifying that connections are still valid. Network engineers adjust this to control how aggressively the network probes for dead connections, balancing link load against detection speed. A T399 value of 10 seconds means the network will retry status checks every 10 seconds until it determines a connection is truly gone.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.1751.2.18.5.17.1.20 snmpwalk -v2c -c public <target> ACMIB::atmVnnT399
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.1751.2.18.5.17.1.20.1 snmpget -v2c -c public <target> ACMIB::atmVnnT399.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.1751.2.18.5.17.1.20.1 i <value>
Start monitoring Lucent/Nortel Access Concentrator (legacy) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the ACMIB::atmVnnT399 OID value, configure state conditions and alerts, and monitor any Lucent/Nortel Access Concentrator (legacy) from a single console.
OID Breakdown
Upper-level ancestors (6 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 |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.1751 | lucent | ACMIB |
| 1.3.6.1.4.1.1751.2 | mibs | ACMIB |
| 1.3.6.1.4.1.1751.2.18 | acMIB | ACMIB |
| 1.3.6.1.4.1.1751.2.18.5 | intfConfig | ACMIB |
| 1.3.6.1.4.1.1751.2.18.5.17 | atmVnnConfigTable | ACMIB |
| 1.3.6.1.4.1.1751.2.18.5.17.1 | atmVnnConfigEntry | ACMIB |
| 1.3.6.1.4.1.1751.2.18.5.17.1.20 | atmVnnT399 | ACMIB |