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Guide for Interworking Between HUAWEI CloudFabric Solution and Redhat OpenStack

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Basic Concepts in the CloudFabric

Basic Concepts in the CloudFabric

Fabric Overview

A fabric network is a Layer 3 network consisting of interconnected spine and leaf nodes. A fabric network contains spine nodes, border leaf nodes, server leaf nodes, service leaf nodes, and fabric gateway nodes.

  • Spine: interconnects leaf nodes at Layer 3.
  • Border leaf: connects to a PE and functions as the egress of north-south traffic on a fabric network.
  • Server leaf: connects virtual and physical servers to the fabric network.
  • Service leaf: connects VAS devices, such as firewalls and load balancers, to the fabric network.
  • Fabric gateway: provides interfaces for connecting to other data center networks.

Figure 1-4 shows a typical fabric network of a data center.

Figure 1-4 Data center fabric network

Network Overlay

In the network overlay as shown in Figure 1-5, hardware switches are deployed as virtual tunnel end points (VTEPs) of VXLAN tunnels. The network overlay can connect to the existing network, physical servers, virtual servers, and VAS devices.

Figure 1-5 Network overlay

Hybrid Overlay

In the hybrid overlay shown in Figure 1-6, CE1800Vs and hardware switches are deployed as VTEPs of VXLAN tunnels.

  • The CE1800V functions as the VTEP to connect to virtual servers.
  • Hardware switches function as the VTEPs to connect to physical servers, existing network, and VAS devices.
Figure 1-6 Hybrid overlay
Updated: 2019-03-25

Document ID: EDOC1100072313

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