78140: Shared Memory Communications Version 2 - Multiple IP Subnet Support
Project and Program:
Core Platform,
Communications Server
Tags:
Proceedings,
SHARE DC 2025,
2025
Shared Memory Communications has been limited to communications within a single
IP subnet. SMC Version 2 removes this limitation by providing multiple IP subnet
support for both SMC-D and SMC-R. In this session, the speakers will provide a
brief introduction and overview of SMCv2, SMC-Dv2, and SMC-Rv2. Additional
information will be provided for SMC-Rv2 along with RoCEv2 ("Routable RoCE”)
including the IBM z16 and RoCE Express3. SMC-Rv2 uses RoCEv2 technology which
uses your existing IP topology and IP routes to extend the reach of RDMA thereby
expanding the benefits of SMC-R to additional application workloads. In this
session you will learn how you can define and control the scope of SMCv2
connection eligibility and how to identify potential use cases that could
benefit from the savings in network related CPU cost, reduced latency, and
increased throughput. Learn how you can unleash SMCv2 in your enterprise!
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