Arista 7500R 7512R vs Cisco Nexus 9516
Side-by-side specifications from the vendors' own documents. The Arista 7512R is a 12-slot high-density modular datacenter chassis switch delivering massive deep-buffer switching capacity for global cloud providers. The Cisco Nexus 9516 is a 16-slot modular datacenter chassis switch delivering massive port density and switching bandwidth for large cloud service provider and enterprise datacenter spine fabrics.
| Arista 7500R 7512R | Cisco Nexus 9516 | |
|---|---|---|
| Brand | Arista | Cisco |
| Status | end-of-sale | current |
| Released | Jun 2016 | Jun 2014 |
| Form factor | modular chassis | modular chassis |
| Chassis slots | 12 | 16 |
| Line card slots | 12 payload line card slots | 16 payload line card slots |
| Chassis height | 18U rack mount | 21U rack mount |
| System capacity | Up to 57.6 Tbps / 21.6 Bpps forwarding rate | — |
| Packet buffer | Over 1.1 Terabytes of deep packet buffering across 12 line cards | — |
| Max 100g ports | Up to 432 ports of 100GbE QSFP28 | — |
| Supervisor slots | — | 2 redundant supervisor engine slots |
| Fabric modules | — | Up to 6 rear fabric modules |
| Switching capacity | — | Up to 230.4 Tbps |
| Max ports | — | Up to 1024 100G ports or 256 400G ports in a single chassis |
| Operating modes | — | NX-OS standalone spine or Cisco ACI spine |
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