All MIBs › CNT21-MIB › cnt2IfOutNUcastPkts
cnt2IfOutNUcastPkts
Module: CNT21-MIB
OID (symbolic): CNT21-MIB::cnt2IfOutNUcastPkts
OID (numeric): 1.3.6.1.4.1.333.2.1.2.2.1.19
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description: The total number of packets that higher-level protocols requested be transmitted to a non- unicast (i.e., a subnetwork-broadcast or subnetwork-multicast) address, including those that were discarded or not sent.
What is cnt2IfOutNUcastPkts?
This Counter32 counts non-unicast, meaning broadcast or multicast, packets that higher-layer protocols requested be transmitted, including any that were discarded or never sent. An administrator monitors for unexpectedly high values here as a sign this interface is being asked to flood a segment with broadcast or multicast traffic. For example, a sudden spike in cnt2IfOutNUcastPkts from a given port suggests it is forwarding a burst of broadcast traffic outward.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.333.2.1.2.2.1.19 snmpwalk -v2c -c public <target> CNT21-MIB::cnt2IfOutNUcastPkts
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.333.2.1.2.2.1.19.1 snmpget -v2c -c public <target> CNT21-MIB::cnt2IfOutNUcastPkts.1
SNMPv3 example:
snmpget -v3 -l authPriv -u snmpv3-user -a SHA -A "AuthPassword1" -x AES -X "PrivPassword1" <target> cnt2IfOutNUcastPkts.1
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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 |
| 1.3.6.1.4.1.333 | cnt | CNT2-MIB |
| 1.3.6.1.4.1.333.2 | cnt2 | CNT2-MIB |
| 1.3.6.1.4.1.333.2.1 | cnt2Mib2 | CNT2-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.333.2.1.2 | cnt2Interfaces | CNT21-MIB |
| 1.3.6.1.4.1.333.2.1.2.2 | cnt2IfTable | CNT21-MIB |
| 1.3.6.1.4.1.333.2.1.2.2.1 | cnt2IfEntry | CNT21-MIB |
| 1.3.6.1.4.1.333.2.1.2.2.1.19 | cnt2IfOutNUcastPkts | CNT21-MIB |