Flow based rate limit
US11875839B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 8, 2017 |
| Grant date | Jan 16, 2024 |
| Priority date | — |
| Expiry date | May 17, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C8/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a mechanism maintain flow rate limits to flows in a server operating in a single root input/output virtualization (SR-IOV) environment. A transmit pipeline assigns a dedicated transmit queue to a flow. A scheduler allocates a flow transmit bandwidth to the dedicated transmit queue to enforce the flow rate limit. The transmit pipeline assigns the dedicated transmit queue to the flow upon receiving a packet of the flow. A queue identifier (ID) for the dedicated transmit queue is forwarded to a tenant process acting as a source of the flow to support forwarding of packets of the flow to the proper transmit queue. The transmit pipeline maintains security by comparing packet destinations of packets with the destination of the flow associated with the dedicated transmit queue. Packets in the dedicated destination queue with destinations that do not match the flow destination may be dropped.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.