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SKY-X Technology

By: Udirmaan Deka 3GN10CS084

Guided by: Prof. Steven Raj

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LIST OF CONTENTS1. Introduction.

2. Sky X Gateway Operation. 3. XTP 4.Mental Sky X Gateway

5. Sky X Performance.6. Sky X Protocol Design.

7. Sky X Accelerator. 8. Merits 9. Packeteer

10. Conclusion

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Satellites are more attractive option for internet.The Sky X gateway replaces TCP over satellite link.Enhance the performance of data transmission over

satellite directly, thereby web performance increases by 3 times.

The Sky X family consists of Sky X Gateway, Sky X Client and Sky X Server and the Sky X Oem products.

XR10, XH45, XH155 are the gateway models.SS10, SS45, SS155 are the gateway server.

Introduction

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TCP connection from the Client and convert the data to XTP for transmission

Translate the data back to TCP Improve the performance with the internet infra-

structure.No modifications are required in Client/Server Architecture call TCP Performance Enchaining

Proxy.

Sky X Gateway Operation

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Sky X Gateway Splits the TCP into three Components:1. TCP connection Between the Client andSky X gateway.2. An XTP connection Involves Sky X protocol over the Satellites between the two Sky XGateways.3. TCP connection betweenopposite Sky X Gateway and Server.

XTP is transport layer protocol design to operate over high speed network and provides high level performance to the End-Users.

Contd..

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XTP defines the delivering user data from one end system to one or more other end systems.

Each XTP implementation maintains the state of each of its communications. Well-defined packet structures, containing user data or control information, are exchanged in order to effect the user data transfer.

The collection of information comprising the XTP state at an end system is called a context. This information represents one instance of an active communication between two (or more) XTP endpoints.

XTP PROTOCOL

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XTP provides all the functionality of TCP and UDP.

XTP supports a reliable transport multicast capability.

The underlying priority system guarantees high performance and latency control for real-time embedded systems

XTP's design scales from LANs to MANs to WANs without alteration

Advantages of XTP

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Manufacturing Detail:• remote hub and bring high network

performance to lower BW networkSky X Client/ Server:• increases the throughput and efficiency

of network , by replacing TCP with XTP for the satellite segment connection

Sky X Multi Cast Fan-Out:• it allows to send multiple recipient

through single data stream and powerful tool for satellites.

Mental Sky X Gateway

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The performance of Sky X gateway depends on many factors: CPU utilization Memory utilizationActive connectionThroughput

Fig:

Sky X Performance

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Efficient Acknowledgment Algorithms: The Sky X Protocol utilizes a highly efficient selective retransmission algorithms for the acknowledgment of data.

Rate Control: Instead, the Sky X gateway uses a rate control mechanism to explicitly set the transmission rate to exactly the BW of the link, thereby providing the maximum throughput possible at all times.

Fast Start Web AccelerationData Compression

Applications

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Increases web performance Does not require any modifications to end

client and servers Sky X Gateway provides fast, efficient, fully

reliable multicast file transfers

Merits of Sky X Gateway

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Functions: Accelerate file transfers, large and small Speed XML and HTTP sessions, disaster

recovery, database sync and backups Optimize application performance over high-

latency and satellite links Maximize bandwidth utilization Allows retransmission and recover more

quickly from errors

Sky X Accelerator

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Packeteer's Sky X Accelerators improve TCP-based application performance including FTP file transfers, e-mail and Web access.

The appliances also provide acceleration capabilities for disaster recovery, database synchronizations, high- bandwidth environments such as satellite or datacenter-to-datacenter links.

The system supports link speeds ranging from 2 - 45 Mbps.

The Sky X 250 Accelerator is available now and its Pricing for the Sky X 250 appliance starts at $2,500

Packeteer Sky X

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A product called Xip Link which is under developing will replace the Sky X.

It is very much the same as the Sky X with extra capabilities.

It optimize all TCP/IP traffic, basically the link itself.

Future Development

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Thus Sky -x technology is best suited for satellite communication using XTP protocol and Sky x gateway.

The Sky X system of a satellite network allows users to take full advantage of the available bandwidth

It gives all features required for successful data Transmission.

Conclusion

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Sky X User Guide Tenth Edition Wikipedia

References

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QURIES?

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THANK YOU….