All MIBs › CTRON-SSR-L2-MIB › l2PortLearnedEntryDiscards
l2PortLearnedEntryDiscards
Module: CTRON-SSR-L2-MIB
OID (symbolic): CTRON-SSR-L2-MIB::l2PortLearnedEntryDiscards
OID (numeric): 1.3.6.1.4.1.52.2501.1.2.8.1.7
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description: The total number of L2 Port table entries, which have been or would have been learned, 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 L2 port table 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 l2PortLearnedEntryDiscards?
This counts entries in this specific port's L2 table that have been, or would have been, learned but were discarded for lack of space, the per-port counterpart to l2LearnedEntryDiscards. A steadily increasing value on one port points an admin at that specific port's table filling up rather than a switch-wide problem.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.52.2501.1.2.8.1.7 snmpwalk -v2c -c public <target> CTRON-SSR-L2-MIB::l2PortLearnedEntryDiscards
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.52.2501.1.2.8.1.7.1 snmpget -v2c -c public <target> CTRON-SSR-L2-MIB::l2PortLearnedEntryDiscards.1
Start monitoring Cabletron/Enterasys Smart Switch Router (SSR) — legacy/deprecated (Layer 2) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CTRON-SSR-L2-MIB::l2PortLearnedEntryDiscards OID value, configure state conditions and alerts, and monitor any Cabletron/Enterasys Smart Switch Router (SSR) — legacy/deprecated (Layer 2) 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 |
| 1.3.6.1.4.1.52 | cabletron | Cabletron-MIB |
| 1.3.6.1.4.1.52.2501 | ssr | CTRON-SSR-SMI-MIB |
| 1.3.6.1.4.1.52.2501.1 | ssrMibs | CTRON-SSR-SMI-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.52.2501.1.2 | l2Group | CTRON-SSR-L2-MIB |
| 1.3.6.1.4.1.52.2501.1.2.8 | l2PortTable | CTRON-SSR-L2-MIB |
| 1.3.6.1.4.1.52.2501.1.2.8.1 | l2PortEntry | CTRON-SSR-L2-MIB |
| 1.3.6.1.4.1.52.2501.1.2.8.1.7 | l2PortLearnedEntryDiscards | CTRON-SSR-L2-MIB |