Method and apparatus for switching communications traffic in a communications network
US9106563B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2010 |
| Grant date | Aug 11, 2015 |
| Priority date | — |
| Expiry date | Oct 14, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/28
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In current hardware forwarding architectures, in which subscriber profiles are distributed across multiple cards in the network, lack of subscriber knowledge leads to loss of bandwidth on fabric links connecting multiple cards in a chassis, loss of device processing cycles, and loss of quality of service knowledge because the traffic is not classified. An example embodiment of the present invention employs a subscriber-aware switch programmed with a subscriber table that maps subscriber traffic to an “anchor” line card with the subscriber's profile. The subscriber table allows for traffic to reach the anchor line card directly, avoiding unnecessary hops and loss of traffic information. As a result, line card, fabric, and other resources are used efficiently, thereby enabling a gateway or other network node to support high traffic rate (e.g., 100 Gbps) network models.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.