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Use Case Overview


Junos Fusion Data Center using EVPN addresses the installation and maintenance needs of modern medium-sized data center networks.

Junos Fusion Data Center provides an architecture that simplifies data center network management and topologies by allowing a large number of switches—one Junos Fusion Enterprise can support up to 3,000 access interfaces—to interconnect and be managed from as little as one aggregation device running Junos OS. Junos Fusion Data Center simplifies data center network topologies by running as one port-dense device that appears to the larger network as a single switch that can be managed from one management IP address.

Other advantages of Junos Fusion Data Center include investment protection because you can build a Junos Fusion Data Center with equipment that you may have previously purchased for other networking purposes, enhanced scalability because switches providing additional access ports can be easily added to the Junos Fusion Enterprise as your data center grows, and preservation of address space since you can assign one management IP address to the entire Junos Fusion Enterprise instead of assigning management IP addresses to multiple standalone switches.

In this network configuration example, a data center network is united into a single, easy-to-manage topology that can be managed from any of the aggregation devices. The Junos Fusion Data Center topology includes a four aggregation device setup that uses EVPN as a signalling protocol and iBGP or OSPF as the routing protocol to exchange routes between aggregation devices. Endpoint devices like servers connect into the data center from the access ports on the switches configured as satellite devices.

Junos Fusion Data Center is typically used to simplify network topologies and centralize network management in medium-sized data centers. The topology used in this network configuration example would only support a limited number of networking devices and is smaller in scale than a typical Junos Fusion Data Center setup. This smaller-scale topology was designed intentionally for readability purposes; we felt we could best exemplify the configuration concepts and procedures of a sample Junos Fusion Data Center in a smaller-scale topology.