MRC: The next evolution in AI data center networking

Multipath Reliable Connection (MRC) extends RoCEv2 with NIC-level intelligence, path pinning, and multiplanar architectures to improve AI training performance at massive GPU scale. It uses intelligent multipath packet distribution, SRv6 source-routed path selection, and real-time fabric feedback; HPE Juniper Networking QFX5240/5241 switches already support the required ECN marking, packet trimming, and SRv6 forwarding.