Alcatel-Lucent 3HE08021AARB01 Switch Fabric Module

Alcatel-Lucent 3HE08021AARB01 Switch Fabric Module is a Switch Fabric Module (SFM) designed for the Nokia/Alcatel-Lucent 7950 XRS-20 family, identified as the SFM-X20-B variant used as a spare in XRS-20 chassis. The part number 3HE08021AARB01 (also cataloged as 3HE08021AA) designates this SFM-B module, with the IPUCBD01AA designation appearing on the unit. As an SFM, it serves as the fabric interconnect that links the switch’s fabric planes to support high-speed data transfer between line cards and other fabric components within the 7950 XRS-20 system. This module is intended for replacement or expansion within compatible 7950 XRS-20 deployments, enabling lifecycle maintenance and scalability of the chassis. The product is positioned for network operators and enterprise networks that rely on the 7950 XRS platform for core routing, data center interconnect, and large-scale aggregation tasks, where modular fabric components are used to maintain performance and resilience in demanding environments.