Why INT（In-band Network Telemetry）is Important?
AI 、big-data based Internet applications drive rapid upgrading of Internet data center products and technologies. On one hand, the access bandwidth was upgraded from the traditional 10Gbps to 25Gbps/100Gbps,the basic network is required to provide high forwarding capability to ensure the high availability of services. On the other hand, with the widespread application of Remote Direct Memory Access ( RDMA ) lossless Ethernet technology, realize microsecond-level delay from computing node to storage node,which greatly optimizes forwarding performance of end-to-end service. And that also means higher challenges to network operation and maintenance–So, how to achieve more sophisticated traffic visualization and controllability in a large, complex HPC ( high performance computing ) network; how can we achieve end-to-end seconds- level failure positioning for service ? This article introduces the In-band network telemetry technology , which prov...