Method and apparatus for port memory multicast common memory switches
US6310875A · kind A · utility
14Cited by
6References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 1998 |
| Grant date | Oct 30, 2001 |
| Priority date | — |
| Expiry date | Mar 30, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5681
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods, systems, and networks for tracking multicast cell copies in a switch. The switch includes a plurality of output ports each having an associated output port register, and a port memory controller for receiving a bit map on the enqueue of a cell into the switch. The bit map includes a bit for each output port register. The port memory controller writes to each output port register the bit from the bit map for that port register. The value of a bit in an output port register indicates whether a copy of the enqueued cell is to be transmitted from the output port associated with that output port register.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.