Which term refers to the IETF open standard version of NetFlow?

Which term refers to the IETF open standard version of NetFlow?

• A. IPFIX
• B. NetFlow
• C. sFlow
• D. Bandwidth

Answer: (A)

The main idea is understanding how flow data can be exported in a vendor-neutral way. NetFlow started as Cisco’s own flow-export protocol, but to enable interoperability across devices from different vendors, the IETF created an open standard called IPFIX, which stands for IP Flow Information Export. IPFIX provides the same goal—exportting detailed flow data to a collector—yet it uses a standardized information model and export protocol so devices from various vendors can understand and share the data consistently. The other options aren’t the standardized open form: NetFlow refers to the original Cisco protocol, sFlow is a separate sampling-based approach, and Bandwidth is just a metric, not a protocol.

The main idea is understanding how flow data can be exported in a vendor-neutral way. NetFlow started as Cisco’s own flow-export protocol, but to enable interoperability across devices from different vendors, the IETF created an open standard called IPFIX, which stands for IP Flow Information Export. IPFIX provides the same goal—exportting detailed flow data to a collector—yet it uses a standardized information model and export protocol so devices from various vendors can understand and share the data consistently. The other options aren’t the standardized open form: NetFlow refers to the original Cisco protocol, sFlow is a separate sampling-based approach, and Bandwidth is just a metric, not a protocol.