All MIBs › USR-DNS-MIB › usrDnsNCacheErrTTL
usrDnsNCacheErrTTL
Module: USR-DNS-MIB
OID (symbolic): USR-DNS-MIB::usrDnsNCacheErrTTL
OID (numeric): 1.3.6.1.4.1.429.4.17.25.1.4
Node type: OBJECT-TYPE
Type: DnsTime
Access: read-only
Description: Time-To-Live of a cached authoritative error at the time of the error, it should not be decremented by the number of seconds since it was received. This should be the TTL as copied from the MINIMUM field of the SOA that accompanied the authoritative error, or a smaller value if the resolver implements a ceiling on negative response cache TTLs.
What is usrDnsNCacheErrTTL?
Reports the Time-To-Live of this cached authoritative error, copied from the SOA MINIMUM field (or a smaller ceiling value) at the time the error was received (RFC 1034 4.3.4). An admin uses this to know how long the negative result will continue to be served from cache.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.429.4.17.25.1.4 snmpwalk -v2c -c public <target> USR-DNS-MIB::usrDnsNCacheErrTTL
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.429.4.17.25.1.4.1 snmpget -v2c -c public <target> USR-DNS-MIB::usrDnsNCacheErrTTL.1
Start monitoring CommWorks (3Com/U.S. Robotics) remote-access platforms (DNS query success-rate/response-breakdown status) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the USR-DNS-MIB::usrDnsNCacheErrTTL OID value, configure state conditions and alerts, and monitor any CommWorks (3Com/U.S. Robotics) remote-access platforms (DNS query success-rate/response-breakdown status) 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 |
| 1.3.6.1.4.1.429 | usr | ANIC-MIB |
| 1.3.6.1.4.1.429.4 | common | HDR2-MIB |
| 1.3.6.1.4.1.429.4.17 | usrDns | USR-DEFINITIONS-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.429.4.17.25 | usrDnsNCacheTable | USR-DNS-MIB |
| 1.3.6.1.4.1.429.4.17.25.1 | usrDnsNCacheEntry | USR-DNS-MIB |
| 1.3.6.1.4.1.429.4.17.25.1.4 | usrDnsNCacheErrTTL | USR-DNS-MIB |