Two priority fair distribution round robin protocol for a network having cascaded hubs
US5519709A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 1995 |
| Grant date | May 21, 1996 |
| Priority date | — |
| Expiry date | Mar 3, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2001/0093
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A two priority protocol is provided for selecting end nodes to send network packets over a network. Network packets are, for example, high priority network packets or normal priority network packets. When an end node has a high priority network packet to send it makes a high priority request to its hub. When an end node has a normal priority network packet to send it makes a normal priority request to its hub. Once an end node makes a high or normal priority request, the end node waits for an acknowledgment from the hub before transmitting the packet. When at least one end node in the network system has a high priority network packet to send, each end node with a high priority network packet is acknowledged in turn. Each end node, when acknowledged, sends its high priority network packet through the network. Once all high priority network packets have been sent through the network, normal priority network packets are sent. While at least one end node in the network system has a normal priority network packet to send and no end nodes have a high priority network packet to send, each end node with a normal priority network packet is acknowledged in turn. A lower level hub forwards a …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.