Owner's Manual

• A tenant is assigned an ID by the provider when it is created that identifies both the tenant and the

provider. The ID must be unique for each tenant managed by the provider, but a provider can use a

tenant ID also used by a different provider. The combination of the tenant ID and the provider ID

creates a unique identification.

•

• The tenant creates networks and policies and connects endpoints to networks.

• The tenant creates one or more policies and associates them with a network managed by the tenant.

The tenant can also create policies associated with host endpoints used by the tenant.

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• The edge port of the fabric connecting to the legacy network where traffic enters the ports.

AFC and SDN

In an SDN, an external controller-cluster manages the network and the resources on each switch. The

software uses OpenFlow (OF) for communication between the controller and the switch.

Figure 1. OpenFlow Topology — Overview

SDN offloads all switching and routing protocol state machines to the controller. A simplified and

efficient software layer on the switch programs the forwarding tables.

Using OpenFlow, you can transmit the switch’s ports and forwarding tables to the controller, allowing the

controller to configure forwarding entries on the switch. OpenFlow also allows the controller to insert

control packets through the switch, separating the control plane from the forwarding plane, and to

redirect any missed flow packets from the switch to the controller.

The flows in OpenFlow allow the switch to match based on the following parameters:

Introduction