Ultra Ethernet: Reinventing X.25
9 months ago
- #Ultra Ethernet
- #Networking
- #Broadcom
- Broadcom's new ASIC, based on Ultra Ethernet specs, uses an Optimized Ethernet Header replacing IP/UDP with a 10-byte session identifier.
- Makes Ethernet lossless via hop-by-hop retransmission/error recovery and credit-based flow control.
- These features resemble older technologies like Fibre Channel, IEEE 802.1 LLC2, and X.25, reinvented at 800 Gbps speeds.
- The article humorously references RFC 1925 Rule 11, suggesting history repeats itself in networking.
- For more details, the article recommends an external link discussing AI networks and Ultra Ethernet.