cfmMetadataIpFixIeId 1.3.6.1.4.1.9.9.789.1.3.1.1

The attribute IPFix IE-ID associated with the attribute of a given metadata flow. Logically, IE-ID is only 15 bits, but in existing transports, such as the actual IPFIX transport protocol, and Cisco metadata signaling in RSVP, the IE-ID is encoded as a uint16. If the high-order bit is 0, then it indicates that VendorID is 0 (IANA = IETF standardized attributes).