All MIBs › GBNDeviceSWAPI-MIB › sDot1dTpLearnedEntryDiscards
sDot1dTpLearnedEntryDiscards
Module: GBNDeviceSWAPI-MIB
OID (symbolic): GBNDeviceSWAPI-MIB::sDot1dTpLearnedEntryDiscards
OID (numeric): 1.3.6.1.4.1.13464.1.2.2.2.4.4.1
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description: The total number of Forwarding Database entries, which have been or would have been learnt, but have been discarded due to a lack of space to store them in the Forwarding Database. If this counter is increasing, it indicates that the Forwarding Database is regularly becoming full (a condition which has unpleasant performance effects on the subnetwork). If this counter has a significant value but is not presently increasing, it indicates that the problem has been occurring but is not persistent.
What is sDot1dTpLearnedEntryDiscards?
Counts forwarding-database entries that could not be learned because the table ran out of space. A steadily climbing counter means the switch's MAC table capacity is undersized for the number of devices/VLANs on the network.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.13464.1.2.2.2.4.4.1 snmpwalk -v2c -c public <target> GBNDeviceSWAPI-MIB::sDot1dTpLearnedEntryDiscards
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.13464.1.2.2.2.4.4.1.1 snmpget -v2c -c public <target> GBNDeviceSWAPI-MIB::sDot1dTpLearnedEntryDiscards.1
Start monitoring Ethernet switch driver/OEM switch silicon (100Mb/1000Mb queue scheduling) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the GBNDeviceSWAPI-MIB::sDot1dTpLearnedEntryDiscards OID value, configure state conditions and alerts, and monitor any Ethernet switch driver/OEM switch silicon (100Mb/1000Mb queue scheduling) from a single console.
OID Breakdown
Upper-level ancestors (10 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 |
| 1.3.6.1.4.1.13464 | admin | ADMIN-MASTER-MIB |
| 1.3.6.1.4.1.13464.1 | dataCom | ADMIN-MASTER-MIB |
| 1.3.6.1.4.1.13464.1.2 | gbn | ADMIN-MASTER-MIB |
| 1.3.6.1.4.1.13464.1.2.2 | gbnDevice | ADMIN-MASTER-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.13464.1.2.2.2 | bcmSwapi | GBNDeviceSWAPI-MIB |
| 1.3.6.1.4.1.13464.1.2.2.2.4 | sRFC1493MIB | GBNDeviceSWAPI-MIB |
| 1.3.6.1.4.1.13464.1.2.2.2.4.4 | sDot1dTp | GBNDeviceSWAPI-MIB |
| 1.3.6.1.4.1.13464.1.2.2.2.4.4.1 | sDot1dTpLearnedEntryDiscards | GBNDeviceSWAPI-MIB |