Documentation

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X-Series switches
Explore architecture guides, XISAᵗᵐ programming references, and integration docs for X-Series programmable switch silicon.
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E-Series DPU
Find setup instructions, Linux development guides, and technical references for the E-Series DPU.
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X-Series documentation

Programmable Ethernet switches with open instruction set architecture

XISA Specification

The X-Switch Instruction Set Architecture is published under MPLv2, providing complete transparency into switch silicon programmability.

Programming examples

Step-by-step implementations demonstrating XISA capabilities.

Basic Cross-Connects
How packet forwarding works at the microcode level
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Simple IPv4
IPv4 packet forwarding with LPM lookups and VRF support using the X-Switch ISA
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IPv4 Header Validation
Checksums, TTL handling, parallelization patterns
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Adding Counter Tables
Per-port packet and byte counting in the data plane
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A Network Calculator
In-network compute example for ML acceleration
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Technical analysis

Independent analysis from Wheeler's Network provides deep architectural insight without marketing bias.

X-Switch ISA
An Open Ethernet Switch ISA
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Cloud ToR whitepaper
Cloud‑optimized ToR switch
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E-Series documentation

The E1 Data Processing Unit runs standard Linux with native support for industry data plane frameworks. If you've built with DPDK, eBPF, or SPDK before, you already know how to build on E1.