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The CAMEL and the IMS are representative service platforms in the circuit switched (CS) and packet switched (PS) domain. The integration of the CAMEL and the IMS will bring tremendous benefits to the network operators and end users. Many researchers invest in investigating the mechanism of invoking the CAMEL service from the PS domain, however, there are few studies about the mechanism of invoking...
The packer switching service of the third-generation mobile communication network (3G) has provide a broader range of services, while wireless local area network (WLAN) has a faster speed in information transmission, thus making these two complementary functionally. However, with the improvement of technology and increasing of mobile users, it has a significant impact on network communication when...
OpenFlow is an open standard that can be implemented in Ethernet switches, routers and wireless access points (AP). In the OpenFlow framework, packet forwarding (data plane) and routing decisions (control plane) run on different devices. OpenFlow switches are in charge of packet forwarding, whereas a controller set up switch forwarding table on a per-flow basis, to enable flow isolation and resource...
This paper introduces the Axon, an Ethernet-compatible device for creating large-scale datacenter networks. Axons are inexpensive, practical devices that are demonstrated using prototype hardware. Functionally, Axons replace Ethernet switches and maintain full compatibility with existing Ethernet hosts. Between themselves, however, Axons transparently use source-routed Ethernet. This unlocks many...
Increases in network traffic due to the expansion of IP broadcast services in recent years have stimulated the requirement of performance and capability in transport network. As an attractive candidate to support the packet switching functionality envisioned in converged next generation transport systems, T-MPLS is gained more attentions to find out its characteristics. This paper describes a T-MPLS...
Network monitoring is an important method of network management and preserving safe operation. This paper presents a switched LAN (local area network) monitor mechanism based on ARP spoofing. Using WinPcap library function to capture the packets in switched LAN, the method contributes to the follow-up data analysis and detection of attack. Experimental data and analysis results show the effectiveness...
Multistage switching fabrics are the most efficient method for scaling packet switches to very large numbers of ports. This article concerns the Clos/Benes network, which is the lowest-cost switching fabric known to yield operation free of internal blocking. To achieve this, we had to successfully combine switch fabric architecture, multipath routing, and internal buffering. We present an architecture...
In universal mobile telecommunications system (UMTS), the core network consists of two service domains: the circuit-switched (CS) and the packet-switched (PS) domains. A call can be set up in either the CS or the PS domain. This call may be switched (transferred) between the CS and the PS domains. A major concern of domain transfer is the switching overhead. In this paper, we propose the Bearer Reservation...
An efficient, programmable Traffic Manager (TM) architecture for supporting simultaneous scheduling of uni- and multi-cast traffic in a packet switch, is presented. By exploiting the use of new, programmable high-speed TMs, the analysis presented shows that by introducing ingress replication into line cards, we can augment a packet switch's multicasting capabilities. A new, multicast-enabled TM that...
A new type of gateway, called a ConnectionLess Circuit (CLC) gateway is proposed to internetwork connectionless (CL) networks with dynamically shared circuit/virtual networks. In contrast with IP routers, CLC gateways implement (a) a signaling function to receive circuit setup/release requests triggered by end hosts and initiate dynamic circuit setup/release through their attached circuit subnetworks,...
This paper will present the ULtra fast Internet Satellite Switching (ULISS) demonstrator capabilities developed by the telecom research department of Thales Alenia Space France and the project partners. The goal of the ULISS project is to demonstrate the feasibility of a promising switching solution called Radio Burst Switching. This concept proposes to upgrade a Digital Transparent Processor technology...
Several technologies have been studied for packet transport but none of them alone can address all packet transport requirements. So a technology mix should be employed to achieve packet transport. Most cost items in the NG-SDH and agnostic approaches are the traffic mapping process on the line cards. Agnostic switch to support high speed TDM has not been proven. Hybrid architecture is the most reliable...
Clos networks are an important class of switching networks due to their modular structure and much lower cost compared with crossbars. For routing I/O permutations of Clos networks, sequential routing algorithms are too slow, and all known parallel algorithms are not practical. We present the algorithm-hardware codesign of a unified fast parallel routing architecture called distributed pipeline routing...
Routing with a clue (RC) is one of the most interesting techniques invented for improving the performance of routing techniques in IP networks by distributing the IP lookup process to all nodes along the path. The technique utilizes a small unit called "clue" to carry the IP lookup information onto the next node in the path. On the other hand, multiprotocol label switching (MPLS) is claimed...
This paper proposes dynamic optical-path generation algorithms and evaluates the impact of these on the performance of the IP+Photonic multi-layered GMPLS network comprising label-switching routers with integrated packet and lambda switching capability. The optical label-switched path (O-LSP) Creation first (OCF) strategy provides excellent throughput in the case of high network capacity
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