| OID | Object | Syntax | Max Access | Description | Implemented Specifications | 
|---|---|---|---|---|---|
| 1.3.6.1.6.3.12.1.4 | snmpUnavailableContexts | Counter32 | read-only | The total number of packets received by the SNMP engine which were dropped because the context contained in the message was unavailable. | This object is implemented as defined in the corresponding MIB files. |