Cisco Cisco Prime Network Services Controller Adaptor for DFA 白書
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Figure 2. New Tenants and Applications Configured in Cloud Management Systems Trigger Provisioning and Configuration
New traffic received from the endpoint servers is dynamically mapped to the provisioned network segment and
identified to the rest of the network so that it can then participate in all the fabric forwarding capabilities through
either Layer 2 or Layer 3 communications. Unlike in other virtual network environments, no encapsulation is
required in the hypervisor, allowing the fabric to be fully hypervisor independent, thereby supporting hypervisors
from multiple vendors in parallel.
Implementing the Cisco Dynamic Fabric Automation Architecture Enhancements
For organizations evolving or migrating to the enhanced Cisco DFA design, the transition is cost effective and
smooth and generally based on existing Cisco Nexus
®
Family hardware already in place. With software upgrades,
Cisco Nexus 6000 and 7000 Series Switches can participate in the spine and the leaf nodes, including the border
leaf nodes (the Cisco Nexus 7000 Series needs to be upgraded to the Cisco Nexus F3-Series line card to act as a
leaf node). Cisco Nexus 5000 Series Switches can be used in the network spine.
To begin the migration and deployment of the architecture, organizations should implement Cisco FabricPath as
well as Cisco Nexus 1000V Series virtual switches at the virtual machine access layer. Organizations should also
consider building fabrics based on the supported platforms. For more information about supported hardware
platforms and the timing of supported software releases, please refer to the Cisco DFA webpage:
http://cisco.com/go/dfa
.
A Simpler Network
Cisco DFA provides critical network attributes required for cloud computing, including dynamic provisioning and
orchestration for both physical and virtual environments simultaneously. Fabric features such as POAP for network
devices, automation of tenant and application deployments, and fabric auto-discovery allow dramatically smaller
teams to manage vastly more scalable cloud networks. Cisco DFA offers more efficient device and tenant
provisioning with greater visibility and control of the physical infrastructure. The resulting fabric design is free from
any dependencies on the hypervisor infrastructure or cloud orchestration software.