Arista 7150 Series Hardware Based NAT For Unicast Traffic

Arista 7150 series switches use Intel’s Fulcrum FM6000 (code named ‘Alta’) ASIC for packet processing. The ASIC includes several features for IP header translation including Network Address Translation (NAT). In doing so, packets to be NAT’d are processed by the ASIC which is known as Hardware NAT rather than by CPU known as Software NAT. Hardware NAT provides much better scale and performance compared to Software NAT.  The 7150 series switches can provide 10/40Gbps line rate hardware based NAT  across all Ethernet ports at the same time. The number of available ports varies depending on the particular model – it...
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