A high-performance switch architecture based on mesh of trees

2012 ◽  
Vol 26 (12) ◽  
pp. 1543-1561 ◽  
Author(s):  
Hyung Jae Chang ◽  
Guannan Qu ◽  
S.Q. Zheng
Keyword(s):  
High Performance ◽  
Switch Architecture ◽  
Mesh Of Trees

RAZAN: a high-performance switch architecture for ATM networks

1998 ◽  
Vol 11 (4) ◽  
pp. 275-285 ◽  
Author(s):  
Mostafa Abd-El-Barr ◽  
Khalid Al-Tawil ◽  
Habib Youssef ◽  
Talha Al-Jarad
Keyword(s):  
High Performance ◽  
Atm Networks ◽  
Switch Architecture

scholarly journals Optimize the Power Consumption and SNR of the 3D Photonic High-Radix Switch Architecture Based on Extra Channels and Redundant Rings

2018 ◽  
Vol 2018 ◽  
pp. 1-8
Author(s):  
Jie Jian ◽  
Mingche Lai ◽  
Liquan Xiao
Keyword(s):  
High Performance ◽  
Process Variation ◽  
Optical Switch ◽  
Signal To Noise Ratio ◽  
Thermal Sensitivity ◽  
Optical Network ◽  
Research Field ◽  
Switch Architecture ◽  
Static Power ◽  
High Radix

The demand from exascale computing has made the design of high-radix switch chips an attractive and challenging research field in EHPC (exascale high-performance computing). The static power, due to the thermal sensitivity and process variation of the microresonator rings, and the cross talk noise of the optical network become the main bottlenecks of the network’s scalability. This paper proposes the analyze model of the trimming power, process variation power, and signal-to-noise ratio (SNR) for the Graphein-based high-radix optical switch networks and uses the extra channels and the redundant rings to decrease the trimming power and the process variation power. The paper also explores the SNR under different configurations. The simulation result shows that when using 8 extra channels in the 64×64 crossbar optical network, the trimming power reduces almost 80% and the process variation power decreases 65% by adding 16 redundant rings in the 64×64 crossbar optical network. All of these schemes have little influence on the SNR. Meanwhile, the greater channel spacing has great advantages to decrease the static power and increase the SNR of the optical network.

Progress of RSFQ High Performance Packet Switch

2006 ◽  
Vol 47 ◽  
pp. 188-194
Author(s):  
Shinichi Yorozu ◽  
Yoshihito Hashimoto ◽  
Yoshio Kameda ◽  
Toshiyuki Miyazaki
Keyword(s):  
Power Consumption ◽  
High Speed ◽  
High Performance ◽  
Semiconductor Technology ◽  
Switch Architecture ◽  
Traffic Loads ◽  
Rapid Single Flux Quantum ◽  
Switch System ◽  
Packet Switch ◽  
Switch Circuit

Internet traffic loads are increasing. Sustaining packet switching throughput of a core node will be difficult. A major reason for this is power consumption and packaging volume. As long as we use only current semiconductor technology, the switching capacity will be limited. Rapid single flux quantum (RSFQ) superconducting technology can overcome such difficulties because of high-speed operation and low-power consumption characteristics. A superconducting wiring also enables high-speed inter-chip communication. We report on progress on packet switch circuit implementation and cryo-cooled packaging for a RSFQ packet switch system. In addition, we discuss a possible packet switch architecture over 100 Tbps that uses RSFQ technology.

Energy-Aware Switch Design

2013 ◽  
pp. 341-360 ◽  
Author(s):  
Yukihiro Nakagawa ◽  
Takeshi Shimizu ◽  
Takeshi Horie ◽  
Yoichi Koyanagi ◽  
Osamu Shiraki ◽  
...  
Keyword(s):  
High Speed ◽  
High Performance ◽  
Large Scale ◽  
Single Chip ◽  
Energy Aware ◽  
It Industry ◽  
Gigabit Ethernet ◽  
Switch Architecture ◽  
Large Scale Integration ◽  
Scale Integration

The use of virtualization technology has been increasing in the IT industry to consolidate servers and reduce power consumption significantly. Virtualized commodity servers are scaled out in the data center and increase the demand for bandwidth between servers. Therefore, a high performance switch is required. The shared-memory switch is the best performance/cost switch architecture, but it is challenging to satisfy the requirements on the memory bandwidth in a high speed network. In addition, it is challenging to handle variable-length frames in Ethernet. This chapter describes the main challenges in Ethernet switch designs and then energy-aware switch designs, including switch architecture and high speed IO interface. As implementation examples, this chapter also describes a single-chip switch Large Scale Integration (LSI) embedded with high-speed IO interfaces and 10-Gigabit Ethernet (10GbE) switch blade equipped with the switch LSI. The switch blade delivers 100% more performance per watt than other 10GbE switch blades in the industry.

Sunshine: a high performance self-routing broadband packet switch architecture

1991 ◽  
Vol 9 (8) ◽  
pp. 1289-1298 ◽  
Author(s):  
J.N. Giacopelli ◽  
J.J. Hickey ◽  
W.S. Marcus ◽  
W.D. Sincoskie ◽  
M. Littlewood
Keyword(s):  
High Performance ◽  
Switch Architecture ◽  
Packet Switch

scholarly journals A combinatorial approach to improving the performance of azoarene photoswitches

2019 ◽  
Vol 15 ◽  
pp. 2753-2764 ◽  
Author(s):  
Joaquin Calbo ◽  
Aditya R Thawani ◽  
Rosina S L Gibson ◽  
Andrew J P White ◽  
Matthew J Fuchter
Keyword(s):  
Benzene Ring ◽  
High Precision ◽  
Half Life ◽  
High Performance ◽  
Computational Analysis ◽  
Experimental Measurements ◽  
Combinatorial Approach ◽  
Switch Architecture ◽  
Key Innovations

Azoarenes remain privileged photoswitches – molecules that can be interconverted between two states using light – enabling a huge range of light addressable multifunctional systems and materials. Two key innovations to improve the addressability and Z-isomer stability of the azoarenes have been ortho-substitution of the benzene ring(s) or replacement of one of the benzenes for a pyrazole (to give arylazopyrazole switches). Here we study the combination of such high-performance features within a single switch architecture. Through computational analysis and experimental measurements of representative examples, we demonstrate that ortho-benzene substitution of the arylazopyrazoles drastically increases the Z-isomer stability and allows further tuning of their addressability. This includes the discovery of new azopyrazoles with a Z-isomer thermal half-life of ≈46 years. Such results therefore define improved designs for high performance azo switches, which will allow for high precision optically addressable applications using such components.

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