Architecture of data communications switching system and associated method
US6574194B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 1999 |
| Grant date | Jun 3, 2003 |
| Priority date | — |
| Expiry date | Jan 28, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/351
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system for facilitating packet data flow among stations on a data network and the associated method are disclosed. The system comprises queue managers that further comprise a free queue manager, an enqueue controller, a multicast queue manager, and a port queue manager. The free queue manager provides a mechanism to monitor the number of free buffers remaining in an external memory. The enqueue controller arbitrates between requests for enqueuing from the ports. The multicast queue manager maintains a multicast queue linked list and manages multicast queue entries to the list. The port queue manager manages output queues of each of the output ports and ensures that a packet is correctly routed to the appropriate ports for subsequent delivery. With the queue manages working in synchronization, an inbound packet can be routed to ports designated by the packet for delivery within a minimum time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.