Communication apparatus for routing or discarding a packet sent from a user terminal
US6907470B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2001 |
| Grant date | Jun 14, 2005 |
| Priority date | — |
| Expiry date | Jul 18, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/325
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A packet communications apparatus of the present invention essentially comprises a plurality of network interfaces (NIFs), a learned address table, a packet forwarding unit (PFU) and a processor for directive packets to change state (PDPCS). The learned address table contains information for identifying a NIF through which to send a packet. The PFU selects a port through which to forward a packet by referring to the learned address table, according to the state of the NIFs, and forwards or discards a packet received from a user terminal. The PDPCS receives a packet including a directive to change the state of a specific NIF to one of the connected state, disconnected state and stateless. The PDPCS changes the state of the specific NIF to one of the connected state, disconnected state and stateless, according to the directive in the packet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.