Packet forwarding
US9397942B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 2, 2013 |
| Grant date | Jul 19, 2016 |
| Priority date | — |
| Expiry date | Sep 2, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2101/622
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
According to an example, to forward a packet, an access layer device searches a Layer 2 forwarding table according to a source Media Access Control (MAC) address of the packet, and replaces the source MAC address with a mapped virtual MAC address in a matching Layer 2 forwarding entry. The Layer 2 forwarding table is searched according to a destination MAC address of the Ethernet packet. In response to determining that a Layer 2 forwarding entry matching the destination MAC address of the Ethernet packet does not include a MAC address mapped to the destination MAC address, Very Large Layer 2 (VLL2) network protocol encapsulation is performed on the Ethernet packet of which the source MAC address is replaced according to an egress port in the Layer 2 forwarding entry matching the destination MAC address; and the Ethernet packet encapsulated with a VLL2 network protocol header is sent via the egress port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.