Switching layer 2 (L2) flows to a correct node in a link aggregation domain
US9736068B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 16, 2015 |
| Grant date | Aug 15, 2017 |
| Priority date | — |
| Expiry date | May 27, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/245
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present invention include systems and methods for providing more efficient switching of data traffic in networks that include a link aggregation domain. In embodiments, when packets arrive at one virtual link trunking (VLT) unit via an inter-node link (INL) from a peer VLT unit in the VLT domain, the first VLT unit checks whether the Media Access Control source address (MAC SA) was learned on a VLT LAG. If the MAC SA was learned on a VLT LAG, then, in embodiments, a special packet is sent to a VLT termination unit to have it learn the MAC destination address of the original packet on a sub-LAG from which the special packet was received. Learning the MAC destination address on the sub-LAG rather than the parent LAG allows for more direct switching of future packets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.