Processing

Please wait...

Settings

Settings

Goto Application

1. WO2003101049 - MEDIA BUS INTERFACE ARBITRATION FOR A DATA SERVER

Publication Number WO/2003/101049
Publication Date 04.12.2003
International Application No. PCT/CA2003/000775
International Filing Date 23.05.2003
Chapter 2 Demand Filed 22.12.2003
IPC
H04L 12/403 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
12Data switching networks
28characterised by path configuration, e.g. LAN or WAN
40Bus networks
403with centralised control, e.g. polling
H04L 12/56 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
12Data switching networks
54Store-and-forward switching systems
56Packet switching systems
CPC
H04L 12/403
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
12Data switching networks
28characterised by path configuration, e.g. local area networks [LAN], wide area networks [WAN]
40Bus networks
403with centralised control, e.g. polling
H04L 47/10
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
47Traffic regulation in packet switching networks
10Flow control or congestion control
H04L 47/13
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
47Traffic regulation in packet switching networks
10Flow control or congestion control
13in a LAN segment, e.g. ring or bus
H04L 47/2416
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
47Traffic regulation in packet switching networks
10Flow control or congestion control
24depending on the type of traffic, e.g. priority or quality of service [QoS]
2416Real time traffic
H04L 47/263
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
47Traffic regulation in packet switching networks
10Flow control or congestion control
26Explicit feedback to the source, e.g. choke packet
263Source rate modification after feedback
H04M 7/1255
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
MTELEPHONIC COMMUNICATION
7Arrangements for interconnection between switching centres
12for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal
1205where the types of switching equipement comprises PSTN/ISDN equipment and switching equipment of networks other than PSTN/ISDN, e.g. Internet Protocol networks
125Details of gateway equipment
1255where the switching fabric and the switching logic are decomposed such as in Media Gateway Control
Applicants
  • CONVEDIA CORPORATION [CA]/[CA]
Inventors
  • FUSSELL, Andrew, M.
  • RUSSELL, Paul, R.
Agents
  • MARKS & CLERK (TORONTO)
Priority Data
10/153,66624.05.2002US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) MEDIA BUS INTERFACE ARBITRATION FOR A DATA SERVER
(FR) ARBITRAGE D'INTERFACE DE BUS DE MEDIA POUR SERVEUR DE DONNEES
Abstract
(EN)
A data server (10) for use in networks where media data are transmitted in packet form comprises at least one card shelf (14) containing at least a bus controller card (24), a plurality of media processor cards (20, 22), and a backplane (16). The backplane has a plurality of media buses (28), which carry data in packet form among the cards installed on the shelf. Each card has at least one bidirectional port with its own unique identity, and each bidirectional port outputs flow control information as to whether that port can or cannot accept packets of data that are intended to be sent to it, as well as transmit requests to transmit packets of data from that port. Each card outputs flow control information for each bus. A bus arbiter reviews each request to transmit and each flow control message, and grants requests to transmit media data packets only when the intended destination address is free to receive a media data packet over a free bus. Priority may be assigned to each data packet; and a processing algorithm in the bus arbiter determines the order of processing requests to transmit packets of data, and balances the priorities of ports and cards, and their respective requests.
(FR)
L'invention concerne un serveur de données (10) pouvant être utilisé dans des réseaux dans lesquels les données de média sont émises sous forme de paquets, qui comprend au moins un casier (14) de cartes contenant au moins une carte de contrôleur de bus (24), plusieurs cartes de processeurs de média (20, 22) et une face arrière (16). La face arrière a plusieurs bus de média (28) qui transportent les données sous forme de paquet entre les cartes posées dans le casier. Chaque carte a au moins un port bidirectionnel avec sa propre identité, et chaque port bidirectionnel sort des informations de contrôle de flux quant à savoir si ledit port peut ou ne peut pas accepter des paquets de données qui sont destinés à lui être envoyées, ainsi que des demandes d'envoi de paquets de données à partir dudit port. Chaque carte sort des informations de contrôle de flux pour chaque bus. Un arbitre de bus examine chaque demande à envoyer et chaque message de contrôle de flux et n'autorise des demandes d'envoi de paquets de données de média que si l'adresse de destination prévue est libre de recevoir un paquet de données de média sur un bus libre. La priorité peut être accordée à chaque paquet de données; et un algorithme de traitement dans l'arbitre de bus détermine l'ordre de traitement des demandes d'envoi de paquets de données, et équilibre les priorités des ports et des cartes, ainsi que leurs demandes respectives.
Latest bibliographic data on file with the International Bureau