All MIBs › CUMULUS-COUNTERS-MIB › l3AclDiscards
l3AclDiscards
Module: CUMULUS-COUNTERS-MIB
OID (symbolic): CUMULUS-COUNTERS-MIB::l3AclDiscards
OID (numeric): 1.3.6.1.4.1.40310.2.1.1.1.4
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description: Number of inbound IPv4 packets discarded due to ingress ACL table.
What is l3AclDiscards?
This value counts inbound IPv4 packets that were dropped specifically because they matched a deny rule in the switch's ingress access control list (ACL) table. An admin checks this counter to confirm ACL-based filtering is actively blocking traffic as intended, or to investigate unexpectedly high drop counts that might mean an overly broad ACL rule is blocking legitimate traffic. For example, a spike in this counter right after deploying a new security ACL would help confirm the rule is catching the traffic it was designed to block.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.40310.2.1.1.1.4 snmpwalk -v2c -c public <target> CUMULUS-COUNTERS-MIB::l3AclDiscards
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.40310.2.1.1.1.4.1 snmpget -v2c -c public <target> CUMULUS-COUNTERS-MIB::l3AclDiscards.1
SNMPv3 example:
snmpget -v3 -l authPriv -u snmpv3-user -a SHA -A "AuthPassword1" -x AES -X "PrivPassword1" <target> l3AclDiscards.1
Start monitoring Cumulus Linux white-box switch (packet-discard counters) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CUMULUS-COUNTERS-MIB::l3AclDiscards OID value, configure state conditions and alerts, and monitor any Cumulus Linux white-box switch (packet-discard counters) from a single console.
OID Breakdown
Upper-level ancestors (7 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 |
| 1.3.6.1.4.1.40310 | cumulusMib | CUMULUS-SNMP-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.40310.2 | sysSpecificCounters | CUMULUS-COUNTERS-MIB |
| 1.3.6.1.4.1.40310.2.1 | discardCounters | CUMULUS-COUNTERS-MIB |
| 1.3.6.1.4.1.40310.2.1.1 | discardCountersTable | CUMULUS-COUNTERS-MIB |
| 1.3.6.1.4.1.40310.2.1.1.1 | discardCountersEntry | CUMULUS-COUNTERS-MIB |
| 1.3.6.1.4.1.40310.2.1.1.1.4 | l3AclDiscards | CUMULUS-COUNTERS-MIB |