Network communication device and operating method for a network mapping table
US11570103B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2020 |
| Grant date | Jan 31, 2023 |
| Priority date | — |
| Expiry date | Sep 18, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2101/622
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A network communication device includes a plurality of ports, a memory, and a processor. The plurality of ports is configured to receive a packet. A memory is configured to store a first lookup table and a second lookup table. An entry of the first lookup table includes a flag field. An entry of the second lookup table includes an entry address of the first lookup table. The processor is coupled to the memory and the plurality of ports. The network communication device is configured to: analyze the packet by a software or hardware to obtain a source Media Access Control (MAC) address; obtain, according to the source MAC address of the packet, the entry of the first lookup table; read the flag field of the entry; and determine, according to the flag field, whether the entry is referred by the second lookup table.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.