A key characteristic of the RoCE (RDMA over Converged Ethernet) network type is that it must be a tagged network. RoCE requires VLAN tagging to segregate traffic and ensure proper delivery of RDMA services over Ethernet networks. Tagging facilitates the identification and handling of RoCE traffic by the network infrastructure.
Option C (Correct): RoCE networks require VLAN tagging to function correctly.
Option A: Quality of Service (QoS) is important for performance but is not enabled by default.
Option B: RoCE networks are not inherently private; they can be configured according to requirements.
Option D: Smart Link is not necessarily enabled for RoCE networks by default.
[Reference:, HPE OneView User Guide: Details on configuring RoCE networks with VLAN tagging (refer to "Configuring network fabrics")., HPE Networking for RoCE Deployment: Offers guidance on network requirements for RoCE., ]
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