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ECS network infrastructure consists of a set of ToR switches which allow for the following two types of network connections:
The ToR switches are dedicated to either the public (production) network, or to the private, internal-to-ECS-only network. For the public network, a pair of 10/25 GbE network switches are used, which service data and internal communication between the nodes. For the private network, depending on the hardware generation, use either a single 1 GbE switch for Gen1 or Gen2 (Gen1/2). Alternately, use a pair of 25 GbE switches (Gen3). The private network is used for remote management, console access, and PXE booting which enables rack management and cluster-side management and provisioning. From this set of switches, uplink connections are presented to the customer production environment for storage access and management of ECS. The networking configurations for ECS are recommended to be redundant and highly available.
Note: Gen1/2 and Gen3 EX300, 500, 3000, 5000 Series systems use a public network for internal communication between nodes. Gen3 EXF900 Series systems use a private network for internal communication between nodes.