Cell processing apparatus, ATM exchange and cell discarding method
US6975651B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1999 |
| Grant date | Dec 13, 2005 |
| Priority date | — |
| Expiry date | Nov 17, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5656
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A cell processing apparatus which executes processing for switching a short-packet in AAL Type 2 cell format has a separation processing unit and a restoration processing unit. The separation processing unit splits a short packet, which has a length greater than a length L (=48) bytes capable of being accommodated in one ATM cell, into two portions, accommodates significant data containing (1) one of the short-packet portions and (2) short-packet length information, in a payload area of the first ATM cell, accommodates remaining significant data including another short-packet portion, which could not be accommodated in the first ATM cell, in a payload area of the second ATM cell, and inputs the first and second ATM cells to an ATM switch. The restoration processing unit refers to the short-packet length information that has been accommodated in the first ATM cell output from the ATM switch, restores the original short packet, the length of which exceeds L bytes, using the short packet portions that have been accommodated in respective ones of the first and second ATM cells, and sends the restored short packet to a line in the AAL Type 2 cell format.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.