System for forwarding a packet with a hierarchically structured variable-length identifier
US8160069B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2009 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | Mar 15, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/63
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
One embodiment provides a system that receives a packet with a hierarchically structured variable-length identifier (HSVLI). An HSVLI indicates a piece or collection of content and may be hierarchically structured, comprising contiguous components ordered from a most general level to a most specific level. The length of a respective identifier is not fixed. During operation, the system converts the HSVLI into a fixed-length key. Subsequently, the system obtains forwarding information based on one or more longest-prefix matches with a longest-prefix-match lookup engine using the fixed-length key. Next, the system forwards the packet to an output port based on the forwarding information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.