The sky X technology transparently Enhances the performance of all users on a satellite network.

1. SKY X
Technology

2.  Introduction.
 Why Sky X Technology ?.
 Performance of TCP over satellite.
 Sky X Gateway.
 Comparison B/W TCP and Sky X
 Advantage of XTP.
 Application.
 Merits.
 Conclusion.

3. Adding the sky x system to a satellite
network allows users to take full
advantage of the available bandwidth.
The sky X technology transparently
Enhances the performance of all users
on a satellite network.
The sky X increases web
performance by 3 time or more and
file transfer speeds by 10 to 100 times.
introduction

4. Conti. Introduction
The Sky X increases the web performance by 3
times or more and file transfer speeds by 10 to
100 times.
The Sky X solution is entirely transparent to end
user.
The Sky X family consists of Sky X Gateway,
Sky X Client and Sky X Server and the Sky X
OEM products.

5. Why Sky X technology ?
 Satellites are ideal for providing Internet and
private network access over a long distance and
to remote location.

6. Performance of TCP over
satellite
 Communication over geosynchronous satellites,
orbiting at an altitude of 22,300 miles has round
trip times of approximately 540 m/s.
 The journey through the atmosphere can introduce
bit errors into the data stream.
 These factors, combined with backchannel
bandwidth typically much smaller than that
available on the forward channel, reduce the
effectiveness of TCP which is optimized for short
hops over low-loss cables or fiber.

7.  TCP is designed for efficiency and high
performance , and optimized for maximum
throughput and the highest transaction speeds in
local networks.
 The satellite conditions adversely interact with a
number of elements of the TCP architecture.
 Including:
* window sizing,
* congestion avoidance algorithms, and
* data acknowledgment mechanisms.

8. Sky X Gateway
 The Sky X gateway works by transparently
replacing TCP connections from the client and
converting the data to Xpress Transport protocol
(XTP) for the hop over the satellite link which is
the protocol optimized for satellite conditions.
 The Sky X gateway on the opposite side of the
satellite link translates the data back to TCP for
communication with the server.
 No changes are required to the client or server
and all applications continue to function without
modification.

9.  This architecture is also referred to as (TCP-PEP).

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

11. Comparison B/W TCP and Sky
X

12. Advantage of XTP
 XTP provides all the functionality of TCP and UDP.
 XTP supports a reliable transport multicast
capability.
 XTP's design scales from LANs to MANs to WANs
without alteration .
 The XTP protocol also supports the TCP
congestion avoidance algorithm to keep the
terrestrial network stable and protected.

13. Application
 Used for Satellite communication.
 Used to access web in faster speed.
 Used to enhanced the data transfer and file
transfer speed.
 Provide better reliability.

14. Merits
 Increase Web performance 3 time faster.
 Does not requires any modification to end client
and server.
 Sky X Gateway provides fast ,efficient, fully
reliable multicast file transfers.

15. Conclusion.
 Sky X technology is best suited for Satellite
communication using XTP and Sky x Gateway.
 Sky X system of satellite network allows user to
take full advantage of available bandwidth.
 It gives all features required for successful data
transmission.