Forum Discussion
RDMA (RoCE) Test Failed over different Subnet
Hello Everyone, Let's say pSMBNIC1 and pSMBNIC2 are the names of the NICs to be used for RDMA on each node of a 3-node cluster. IP address assignments are as follows: pSMBNIC1 = 192.168.207.31 (...
Seems yes, RDMA (RoCE) tests to fail across different subnets since it over Converged Ethernet requires either Layer 2 adjacency or a properly configured routable RoCEv2 environment with Priority Flow Control (PFC) and Data Center Bridging (DCB). In the absence of correct routing and switch configuration, RDMA traffic will only succeed within the same subnet.
https://learn.microsoft.com/en-us/answers/questions/365249/rdma-traffic-test-failed