Arista 7260X 7260CX3-64 vs Juniper QFX Series QFX5220-128C
Side-by-side specifications from the vendors' own documents. The Arista 7260CX3-64 is a high-density 2U fixed datacenter spine switch offering 64 ports of wire-speed 40G/100G QSFP28. The Juniper QFX5220-128C is an ultra-dense 4U datacenter spine switch delivering 128 ports of 40G/100G QSFP28 in a compact rack enclosure.
| Arista 7260X 7260CX3-64 | Juniper QFX Series QFX5220-128C | |
|---|---|---|
| Brand | Arista | Juniper |
| Status | current | current |
| Released | May 2018 | Sep 2019 |
| Form factor | 2U fixed switch | 4U fixed switch |
| Ports | 64x 40G/100G QSFP28 ports | 128x 40G/100G QSFP28 ports |
| Switching capacity | 12.8 Tbps / 4.3 Bpps forwarding rate | 25.6 Tbps / 8.4 Bpps forwarding capacity |
| Form factor | 2U rack mount | 4U rack-mounted fixed-configuration chassis |
| Latency | Cut-through latency under 900 nanoseconds | — |
| Power supplies | Up to four hot-swappable 1+1 redundant power supplies | — |
| Density | — | 128 wire-speed 100GbE ports in just 4U of rack space |
| Reliability | — | N+1 redundant power supplies and hot-swappable cooling modules |
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