Huawei’s NetEngine WAN solution offers:
Full interface rate support from 64 kbps (legacy TDM) up to 400 Gbps for ultra-broadband scenarios.
Converged access, including wired and wireless for any application environment.
SRv6 (Segment Routing over IPv6) for simplified configuration and intelligent path computation.
One-click service deployment via mobile phone and cloud-based orchestration through iMaster NCE.
However, 800 Gbps interfaces are not yet part of Huawei's mainstream WAN product line. Thus, option C is inaccurate.
[Reference:, Huawei HCSA-IP Network V4.0 Study Guide → Chapter: Huawei WAN Products and Solutions, Huawei NetEngine Series Routers Technical White Paper → Interface and Access Capabilities, ════════════════════════════════════]
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