Packet processing apparatus, interface unit and method thereof
US8369223B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2010 |
| Grant date | Feb 5, 2013 |
| Priority date | — |
| Expiry date | Feb 17, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L43/0811
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A packet processing apparatus includes a plurality of communication connecting unit each connected with a communication partner apparatus using one of a work path and a protection path, connecting unit for connecting, using a data bus, the plurality of communication connecting unit with one another; determination unit for, when a packet sent from the communication partner apparatus is received by one of the communication connecting unit, determining whether the packet is a maintenance packet that is used for monitoring a connection state with the communication partner apparatus; and transmitting unit for, when it is determined that the packet is a maintenance packet by the determination unit, transmitting the maintenance packet to the plurality of communication connecting unit using the data bus via the connecting unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.