Broadcom bakes an NPU into its switches to combat congestion
Briefly

The compute capability, which Broadcom calls NetGNT - short for networking general purpose neural network traffic analyzer - is baked into the company's all new Trident 5-X12 chip.
The semiconductor giant suggests the chip is particularly good at identifying traffic patterns associated with AI workloads, such as incast, where packets converge on a single port and buffer introducing congestion and prevent it before it causes problems.
That bandwidth is broken out by standard 100G PAM4 Serializer/Deserializers, allowing for a wide array of port configurations. However, as a ToR switch, Broadcom expects to see the 5-X12 deployed as a 1U pizza box with 48 200 Gbps QSFP-DD ports and eight 800 Gbps ports for aggregation back to a spine switch.
Read at Theregister
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