In Huawei's SD-WAN solution, which of the following protocols is used to report device performance data?

Question

Options

• ANetFlow
• BBGP
• CHTTP/2
• DSNMP

• A
  3% (2)
• B
  7% (4)
• C
  76% (44)
• D
  14% (8)

Explanation

In Huawei's SD-WAN solution, the iMaster NCE-WAN controller communicates with CPE devices using HTTP/2 as the underlying transport protocol for reporting device performance data and telemetry - making HTTP/2 the correct answer for this context. NetFlow (A) is a Cisco-originated protocol for capturing IP traffic flow statistics, which is about traffic analysis rather than device performance reporting in the SD-WAN management plane. BGP (B) is a routing protocol used for exchanging routing information between autonomous systems, with no role in performance data collection. SNMP (D) is the traditional network management polling protocol, but Huawei's SD-WAN architecture favors HTTP/2-based communication (often via gRPC, which runs over HTTP/2) for modern, efficient streaming telemetry rather than the older polling model SNMP uses.

Memory tip: Think "H2 = How devices talk Home" - HTTP/2 is how CPE devices report back to the SD-WAN controller. If you associate HTTP/2 with modern, efficient push-based data streams (vs. SNMP's old-school polling), you'll naturally link it to SD-WAN's telemetry model.

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