Method and system for sending E-LSP packets having QoS across a cell ATM based network

• Main Authors: MARASLI RAHMI, CHOUDHURY SANJAYA
• Format: Patent
• Language: English
• Published: 06.05.2008
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; MULTIPLEX COMMUNICATION; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

A telecommunications system includes a packet based network. The system includes a packet ingress node for packets having a QOS in communication with the packet based network. The system includes an ATM ingress node for an ATM network. The ATM ingress node receiving the packets from the packet ingress node through the packet based network, segmenting the packets into cells and identifying the QOS associated with each cell. The system includes an ATM network in communication with the ATM ingress node. The system includes an ATM egress node which receives cells from the ATM ingress nodes. The ATM egress node in communication with the ATM network. The ATM egress node reassembles the cells back into the packets. The ATM egress node in communication with the packet based network. The system includes a plurality of VCs corresponding with QOS between the ATM ingress node and the ATM egress node through the ATM network. The ATM ingress node sending each cell to the ATM egress node along the VCs whose QOS corresponds to the QOS of each cell. The system includes a packet egress node for the packets in communication with the ATM egress node through the packet based network, which receives the packets from the ATM egress node. A method for sending packets.