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In this paper main particularities of the infrastructure of NGN are considered, instances base technologies, which meet the requirements and which can be used in transport network NGN are described.
We report on a Synchronous Ethernet based clock distribution and timestamp synchronization implementation over 1000BASE-T (Gigabit over twisted pair) Ethernet. A central 125 MHz global clock is distributed to all detector modules using only commercial off-the-shelf components. The timestamps generated on different modules has a maximum fixed offset of 24-60 ns (depending on the switch tested), and...
Recently, both research-and-education networks (RENs) and commercial networks have added a dynamic circuit service. With this service, users can request and obtain dedicated bandwidth for short durations (on the order of minutes to hours). Host-to-host (cluster-to-cluster) circuits are used for large file transfers. The network nodes used for this circuit service are not pure TDM or WDM circuit switches;...
Omnipresent Ethernet was proposed as a technology solution for achieving end-to-end communication using an-all-Ethernet methodology. The journey traversed by Ethernet from CSMA/CD to Carrier Ethernet has led to the development of a plethora of technologies, some of which when coalesced together, lead to the Omnipresent Ethernet framework. By making use of network interconnection topology, we are able...
Networks based on Ethernet bridging scale poorly as bridges flood the entire network repeatedly, and several schemes have been proposed to mitigate this flooding problem, however, none have managed to eliminate flooding completely. We present Automatic Integrated Routing (AIR) as the first routing protocol that eliminates flooding by assigning prefix labels to switches and building a Distributed Hash...
The LHCb event-builder is implemented using a large Gigabit Ethernet network using a very lean push-protocol for a single stage read-out at 1 MHz event injection rate. Destination assignment and dynamic load-balancing are facilitated by LHCb's Timing and Fast Control system. Assembly of fragments is done on each event-filter farm node instead of having dedicated builder units. The design of the event-builder...
Ethernet has grown from its roots in LANs to cover large scale networks. A set of projects plan to enhance the features of Ethernet to be with carrier grade features like high availability, fault management, and resiliency found in other circuit switched technologies. Ethernet has been architected and designed for a shared medium, it inherently handles broadcast and multicast traffic by flooding of...
Ethernet based network protocol replaces fieldbus systems due to its high speed, safety, and extendibility. At the system level, use of an additional network requires effort to implement the new environment. The user has to analyze and organize two networks. This paper proposes FPGA based network controller between Ethernet and EtherCAT. It does not incur additional cost and effort. As it is based...
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...
The application of Switched Ethernet is becoming more and more popular on the platforms of ships and aircrafts. On such specific platforms, Switched Ethernet is greatly appreciated by its low-cost and flexibility, meanwhile, its real-time performance is greatly challenged. Therefore, evaluation of Switched Ethernet's performance, that is, a reliable analysis on its real-time performance, plays a very...
This paper first presents a brief overview of the PBB and the H-VPLS technologies, along with the shortcomings of existing H-VPLS, and then designs the solutions by deploying PBB interoperating with H-VPLS over networks with a MPLS core, which improve the standard H-VPLS.
Parallel transmission is one of the popular techniques to realize huge bandwidth between two network nodes. However, in parallel transmission, many packet order inversions will be occurred when the delay difference among the routes is large, and TCP throughput will be drastically decreased under such a circumstance. In this paper, a TCP over SCTP (Stream Control Transmission Protocol) parallel transmission...
This paper describes Address Resolution Protocol (ARP) and the ARP cache poisoning (ARP SPOOFING) problem and presents a proposed architecture for detecting the ARP attacks. In addition, it discusses a set of techniques used to detect the ARP poisoning attacks on switched Ethernet networks. A new practical technique by adding external hardware element to the LAN network to work as sniffer is suggested...
This paper proposes VEIL-a novel, "plug-&-play" Virtual (Ethernet) Identifier (Id) Layer for below IP networking. The objective is two-fold: i) VEIL directly addresses the scalability, efficiency and reliability challenges facing the traditional Ethernet, while retaining its "plug-&-play" feature; ii) but perhaps more importantly, VEIL provides a uniform (below IP) convergence...
This paper gives a new design for Ethernet/IP intelligent communication modules (EIICM). The new EIICM module not only acts as the network communication module for the PLCs to facilitate the communications between the PLCs and the remote network devices, but also it acts as the CPU of the built-in operation switch to perform the network topology monitoring and maintenance, IGMP snooping, and switch...
Switch Technology is a data transmission method with the development of switch device. It is include L2 switch, L3 switch and L4 switch. L2 switch is an oldest technology. This paper introduces the VLAN technology in L3 switch. The L3 and multiple layer switch is introduced. VLAN technology is discussed with classification and the character. This paper also expatiates on Super VLAN and proxy arp,...
IETF ForCES Working Group proposes an open programmable IP router architecture which is composed of FE and CE. There are many FEs in this kind of structure router. The packets may be forwarded by non-local FE. In view of this kind of packets, this paper proposes a method of packets forward among multi-FE which independent to FE physical connection characteristics to solve FE communication problem...
Switched Ethernet is being used for real time transmissions in industrial automation more and and more. Most modern industrial switches are equipped with mechanisms to deal with time predictability. However, real-time transmission not only requires these mechanisms, but also the proper policies for managing network resources. This paper proposes the use of contracts. A contract is a set of transmission...
LXI has become an increasingly popular instrumentation platform that is being used in many ATE system designs. It provides simplified programming interface, convenient LAN-based hardware architecture, and the precision synchronization and triggering required by many test applications. When multiple copies of an LXI instrument are used in a system, potential issues can arise if the instruments are...
The convergence of different types of networks into a common data center infrastructure poses a superset challenge on the part of the underlying component technology. IP networks are feature-rich, storage networks are lossless with controlled topologies, and transaction networks are low-latency with low jitter, parallel multicast. A successful converged enhanced Ethernet (CEE) switch should pass the...
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