In Huawei’s spine-leaf DCN architecture, nodes have distinct roles:
A. Spine:The spine nodes form the backbone of the data center, providing high-speed IP forwarding between leaf nodes. They handle east-west traffic with non-blocking connectivity, making them the core backbone nodes.Correct.
B. DC1 leaf:This is not a standard node type; it may be a typo or misnomer. Leaf nodes connect to endpoints, not act as backbones.Incorrect.
C. Service leaf:Service leaf nodes connect to internal services (e.g., servers), not the backbone, focusing on access rather than high-speed forwarding.Incorrect.
D. Border leaf:Border leaf nodes connect to external networks, handling routing, not serving as the internal backbone.Incorrect.
Thus, the answer isA (Spine).References:Huawei CloudFabric Data Center Network Solution – Spine-Leaf Architecture; HCIP-Data Center Network Training – Node Roles.
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