GILAT OVERVIEW · 2021. 4. 15. · GILAT TECHNICAL SUPPORT Technical Support Engineer is working...

GILAT OVERVIEW

September 23, 2018

2 | Proprietary and Confidential

Introduction

Gilat SatCom Principles

What Gilat Moldova does

Agenda


Gateway / Hub

Internet

SAT NETWORK

Terminals

NOC / NMS

Star

Mesh


THE INDUSTRY VALUE CHAIN

MNO, ISPs, Government, Aero/IFC SP, Maritime SP Service

Provider

• A “real estate” business

• Highly competitive market

• Declining prices

Satellite

Operator

• Technology advances

• Multiple market segments & solutions

Ground

Equipment

• Highly competitive market

• Industry in hurdlesSatellite

Manufacturer


SATELLITE GOALS


Earth observation

o Environmental monitoring

– Polar Ice caps

– Floods

– Sea temperatures

o Mapping (i.e. Google Maps)

o Weather forecasting

Navigation

o GPS

o GLONASS (GLObal NAvigation

Satellite System)

o BeiDou (China)

o Galileo (EU)

o IRNSS (only covers Indian continent)

Communications

o Voice and Internet

Broadcasting

o Television and radio

Military


COMMUNICATIONS SATELLITE

A radio relay station

o Receives, amplifies, and redirects

analog and digital signals

carried on a specific radio frequency

Two types of communication satellites:

o “Bent pipe”

– Act as mirrors in the sky

– No information processing

o Regenerative /

On-Board Processing

Propulsion System

Telemetry, Altitude Control,

Commanding, Fuel, Batteries,

Power/Thermal Systems

Solar Arrays Solar Arrays

Antenna

Transponder

Transmitter

Section

Transponder

Receiver

Section

Uplink / Inbound Downlink / Outbound

Space Segment

Ground Segment

Payload


THE GEO BELT

Advantages:

o Simple ground station tracking

o Nearly constant range

o Very small frequency shift


Equatorial orbit at ~36,000Km

o Satellite movement is coordinated with the earth rotation

o Satellite appears to be stationary with respect to any location on the Earth

Disadvantages:

o Transmission delay of the order of ~250 msec

o Large free space loss

o No polar coverage


COMMUNICATIONS SATELLITES IN ORBIT

Geostationary Orbit (GEO)

35,786 km

~450 satellites today

Medium Earth Orbit (MEO)

2,000 - 35,786 km16 satellites today

Low Earth Orbit (LEO)

500 - 2,000 kmNo satellites today



GEO SATELLITES – BEAMS AND FREQUENCIES

FSSFixed Satellite Service

Wide Beam

Frequency Bands

L, S, C, Ku, Ka, XHTS

High Throughput Satellite

Multi-Spot Beam



RACE BETWEEN OPERATORS


SATELLITE COMMUNICATIONS SERVICES AND APPLICATIONS

MOBILITYMOBILE

Air Land EnterpriseConsumer4G/5G Sea

RURAL BROADBAND

2G/3G


GILAT’S UNIQUE OFFERING

End-to-End Services

Network Design & Setup

Capacity Setup & Management

24x7 NOC (Network Ops Center)

Program Management

Multi ApplicationSingle Platform

Aviation MaritimeCellular

Enterprise Trains Consumer

Comprehensive & Innovative Technology

Cutting Edge Ground SegmentCloud-based SDN Platform

Most Advanced AntennasKu-Ka, PAA

Fastest ModemsUp to 400 Mbps

Global Presence


GILAT’S PRODUCTS AND SOLUTIONS

Hubs

Modems BUCs & SSPAs Services

Service Level

Management

Program

Management

Network

Design

Call Center

24x7 Network

Operation Center

Network Integration

& Installation

HUB Setup

Capacity

Setup & Management

Antennas


GLOBAL SUCCESS

300+ customers 500+ Networks 90+ countries

SYSTEM INTEGRATORS

GOVERNMENTS

SATELLITE OPERATORS CARRIERS & SERVICE PROVIDERS


One Network

DELIVERING SUPERIOR PASSENGER EXPERIENCE

~2,000 aircraftsWorld’s Fastest Speed

In-Flight Connectivity


Enterprise

LEADING SOLUTIONS FOR MULTIPLE BROADBAND APPLICATIONS

Remote Wi-FiEducation

Examples:

• Retail chains

• Local businesses

• Gas stations

• Rigs

• Gov. services


SATELLITE IS BECOMING AN INTEGRAL PART OF 5G

Connecting billions of devices EVERYWHERE!

Satellite has the scale and scope

to enable ubiquitous connectivity,

drive network efficiencies,

and enable data monetization


18 | Proprietary and Confidential18 | Proprietary and Confidential

GILAT SATCOM PRINCIPLES


• FWD

• Transmission from the Hub

to the VSATs

• Based on DVB-S2

• RTN

• Transmission from the

VSATs to the hub

• Based on DVB-RCS

SE II-c Hub

Return

Forward

Satellite (Transponder)

Remote Terminals

GENERAL PRINCIPLE


DVB-S2 (DIGITAL VIDEO BROADCASTING SATELLITE 2ND GENERATION)

Coverts an input IP stream to modulated data compliant with

the DVB-S2 standard

o ACM & CCM (adaptive/constant code modulation)

o Short & Long frames

o 1.5Msps to 67 Msps

o QPSK1/4 to 32APSK 9/10

o Supports up to 235Mbps

o Roll off factor 1.1, 1.2

Optimized ACM framing based on QoS and VSAT Receiver

capabilities

Supported encapsulations include both MPE and GLE

standards

Wide L-band support 950 – 2450 MHz


DVB-RCS (DIGITAL VIDEO BROADCASTING RETURN CHANNEL SATELLITE)

MF-TDMA Burst receiver (DVB-RCS)

Up to 40 channels and 10Msps

Dynamic configuration

o Burst frequency, Burst timing, Slot duration / burst payload size

o Pre-set combination of Symbol-rate / Modulation and coding

o Burst time plan on-going / dynamically changing

Overall RF span BW +/-6MHz

Channels symbol rates 128ksps to 6Msps

Supported ModCods QPSK 1/2 to 8PSK 6/7

Roll off factor = 1.2


HIGHEST SPECTRAL EFFICIENCY

Spectral Efficiency - FWD

• Latest DVB-S2X Standard

• Delivering ~+20% spectral efficiency

Spectral Efficiency - RTN

• LDPC codes

• Delivering ~+20% spectral efficiency

• High Speed Uploads (100Mbps)

LDPC


COMPLETE NETWORKING

Data Protocols

o IPv4, IPv6, Layer-3 & Layer-2

o RIP, BGP

o DHCP, NAT/PAT

o Multicast, IGMPv3

Application

o TCP acceleration

o HTTP pre-fetch acceleration & compression

o DNS Caching

o VoIP SIP-Aware, cRTP

o Cellular data (GTP) acceleration

o GRE Acceleration

Security

o Over-the-air AES-256 encryption

o X.509, ACL

o Dual IP-SEC client

Management

o Total NMS, FCAPS

o SNMP

o Northbound Interface

VLANs

o Multiple VLAN and VRF per VSAT

o 802.1q VLAN Trunking

QoS

o MIR/CIR, priority weight, Group

QoS, Diffserv

Fault Tolerance

o VRRP

o Geographical redundancy

o NMS, RF and GW diversity


BUILDING SCALABLE, FLEXIBLE HIGH CAPACITY NETWORK

Any number of

teleports/ Gateways

Any number of

User Beams

WAN / MPLS

Any number of

Satellites

Any number of Freq.

BandsOSS/BSS

TotalNMS

Ka Ku C

ONE Network

Management

System

Internet

One or More

Data CentersCloud-

based

Virtualized

Network

Functions

SDN

M&C


WHAT GILAT MOLDOVA DOES


GILAT MDC DEPARTMENTS

QA Development TS / NOC HelpdeskManagement

/ Finance

Integration

Regression

Automation

Quick

response

NMS teams

Client teams

Tier 2 TS

NOC

DevOPS

Dev

Engineers


DEVELOPMENT


TOTALNMS – CARRIER GRADE NETWORK MANAGEMENT

Simple Operations via ONE Global NMS

Reduce OPEX via M2M service automation

Improve Customer Satisfaction via rich graphical interface

Simplifying Network Management and Operations


Provision and

Service Activation

Faults

DetectionTerminal Config

Mgmt

Secure User

Access

Network Partitions

(VNO)

M2M NBI

SNMP

FTP

TOTAL NETWORK MANAGEMENT

Satellite

Network

Infrastructure

Network

Analysis

Shared

Networks

Management

Network

Automation

Network

Infrastructure

Definition Network

Resource

Allocations

Network

Processes

Performance

Monitoring

TotalNMS


DB

Performance

CSV

Billing

SN

MP

Faults

TOTALNMS OSS/BSS INTERFACES

TotalNMS

Northbound Interfaces

(NBIs)

SO

AP

Provisioning


TECHNOLOGIES PROFILE

Used technologies:

o Languages - Java, AngularJs

o Architecture - Client-Server

o DB

• PostgreSQL

• Vertica

o Technologies:

– Public: Tomcat, Spring, Hibernate, HornetQ, REST, SNMP, XML, Json

– Private: GDFX


AREAS OF INTERESTS

o Inter-process communication

– Multithreading

– Messaging

– Synchronization

o Performance improve

– High load testing, profiling, debug

o Automation

o Refactoring


QA


WHO IS VNV ENGINEER ?

RF

Networking

LinuxWEB

technologies

QA


36

Release

FEATURE LIFE CYCLE - THE BIG PICTURE

Quality Assurance

TestHLD

SW

SRSSA

RequestPLM

VRR


V&V Engineer Learn the

SRS & HLD

Write Test Plan & ATPTraceability/Compliance

Matrix

Internal TP DR

External TP DRPerform ATPand issue a TRR Report

Feature Progress Weekly Status

Feature Summary(aggregated to the

VRR)

Next version Feature

Regression TP/Auto plan

Regression Feature Test

Assign

Feature to

engineer

INTEGRATION FEATURE LIFE CYCLE

Mandatory

Participate

in DRs

(SRS &

HLD)


REGRESSION PROCESS

38

KOM

Features integration

VRR

Bugs Validation

Backlog

1st Regression Cycle

Validate that legacy features still work fine

Bugs Validation

Features integration Freeze

Bugs ValidationFeatures integration 2nd cycle

2nd Regression Cycle

3rd Regression Cycle

Code Freeze


AUTOMATION

Main Goal:

▪ to improve product quality

▪ to increase the effectiveness, efficiency and coverage of tested feature

▪ to reduce testing lifecycle

Benefits of Automation Testing:

▪ Useful to execute the routine tasks like smoke tests and regression tests.

▪ Useful in preparing the test data.

▪ Helps to execute the test cases which involve complex business logic.

▪ Good to execute the cross platform test cases (like different OS, browsers etc.)

▪ When the number of iterations of the test case executions are not known.

Confidential. Proprietary information. © Gilat Satellite Networks Ltd. 39

http://www.softwaretestinghelp.com/smoke-testing-and-sanity-testing-difference/

http://www.softwaretestinghelp.com/regression-testing-tools-and-methods/

http://www.softwaretestinghelp.com/tips-to-design-test-data-before-executing-your-test-cases/

http://www.softwaretestinghelp.com/decision-table-test-case-design-technique/


AUTOMATION ENVIRONMENT AND TOOLS

Complex

▪ Hardware and Software

▪ Simulators

Varied / Divers

▪ QualiSystem

▪ Virtualization (VMware ESXI and VirtualBox)

▪ Bash

▪ Python

▪ Different Applications to run traffic (Ixia, D-ITG, Spirent, Xena, etc.)


TECHNICAL SUPPORT


GILAT TECHNICAL SUPPORT

Technical Support Engineer is working with company customers, troubleshooting networking

and interconnectivity problems on Gilat platforms, maintaining and providing professional and

efficient service to their networks.

Technical Support Engineer is responsible for the maintenance, monitoring, reporting,

restoration and analysis of our customer services and infrastructure.

Diagnose and troubleshoot technical issues, including setup and network configuration

Technical Support is the main interface between the Customer and Gilat


TECHNICAL SUPPORT ACTIVITY

Installations on customer side

Customer maintenance visits

Resolve System malfunction

Resolve Service Requests raised by Gilat Customers

Provide Recommendations for system optimization

o TS is familiar with all existing Gilat Products and 3rd party vendors


HELPDESK


HELPDESK


What we do

Offer first line support for company users.

Provide solution(s)/work around(s) to incidents and work requests.

Prioritizing and managing open cases.

Escalate when necessary.

Systems monitoring.

When we do

24/6

Sunday till Friday


HELPDESK


Team profile

o IT background

o Good communication skills

o Very good English

Users can submit a case via:

o EndUserPortal

o Email

o Phone

THANK YOUGilat Satellite Networks | [email protected] | www.gilat.com

THANK YOUGilat Satellite Networks | [email protected] | www.gilat.com

GILAT OVERVIEW · 2021. 4. 15. · GILAT TECHNICAL SUPPORT Technical Support Engineer is working...

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Transcript of GILAT OVERVIEW · 2021. 4. 15. · GILAT TECHNICAL SUPPORT Technical Support Engineer is working...