cefIntEntry 1.3.6.1.4.1.9.9.492.1.5.1.1

If CEF is enabled on the Managed device, each entry contains the CEF attributes associated with an interface. The interface is instantiated by ifIndex. Therefore, the interface index must have been assigned, according to the applicable procedures, before it can be meaningfully used. Generally, this means that the interface must exist. A row may exist for each IP version type (v4 and v6) depending upon the IP version supported on the device. entPhysicalIndex is also an index for this table which represents entities of 'module' entPhysicalClass which are capable of running CEF.