基于流标识的报文地址查找方法、装置、设备及存储介质
By employing a flow identifier-based message address lookup method in the RoCEv2 protocol, the long-tail latency and hash collision problems caused by the complexity of connection context location in existing technologies are resolved. This enables fast location of the context physical address, ensuring deterministic performance in computing and low-latency forwarding.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- PENG CHENG LAB
- Filing Date
- 2026-04-01
- Publication Date
- 2026-07-17
AI Technical Summary
In high-performance computing and artificial intelligence clusters, the existing RoCEv2 protocol relies on queues to locate the connection context by sequence number, which leads to a complex lookup mechanism. This results in unpredictable packet processing latency and significant long-tail latency and hash collisions in high-concurrency scenarios, making it difficult to meet the line-rate small packet processing requirements of ultra-high-speed networks.
A message address lookup method based on flow identifiers is adopted. When a target connection establishment request is detected, context slots and security verification information are allocated to the connection to generate initial flow identifier information, which is sent to the sender through the target connection. The flow identifier information is parsed and verified to determine the target lookup strategy to locate the context physical address, avoiding hash lookup and multi-level page table translation.
It enables rapid location of context physical addresses in ultra-large-scale cluster scenarios, eliminates performance jitter caused by long-tail latency and hash collisions, ensures deterministic low-latency forwarding of high-performance computing, and meets the line-speed small packet processing requirements of ultra-high-speed networks.
Smart Images
Figure CN121967568B_ABST