INTERNET SECTIONS


IP- INTERNET: BASICS

 

 A revolution in information processing and communication is taking place with the Internet tidal.  It affects the traditional telecommunications both at home and in the Companies. It metamorphoses the data and voice networks with the emergence of the federating IP communication protocol. 

The objective of this course is to initiate the participants to the new upcoming Internet technologies, the related networks and services in the Consumer and Business fields. ___________________________________________________________________________

Objective of the course 

·        Introduce the basic TCP/IP protocol suite
·        Introduce the basic operation principles of IP networks : addressing and routing
·        Present the IP services and the network architectures:  Internet, Intranet, and Extranet.
·        Illustrate the Operator’s solutions

 

Audience: 

Technical person looking for training on IP protocols and networks (Internet, Intranet, Extranet)  

Duration: 1 day

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Table of Contents

Introduction to the world of Internet

- Internet History
- TCP/IP Communication Model, Client/Server model
- Internet organization, standardization and management processes

- Internet Actors : IAP, ISP, CSP, ASP

 

IP NETWORKING PROTOCOL

·      Addressing and routing
- IP addressing : class based addressing, subnetting, CIDR supernetting
- IP datagram format
- Basic routing principles, the control protocols ICMP et ARP, 
- The new IPV6 Protocol

·      IP Routing Protocols

- Dynamic routing basic principles
- IGP routing protocols : RIP, OSPF, IS-IS
- EGP routing protocols : BGP-4.

 

UDP et TCP Transport Protocols

- Ports and  "sockets", « well known » ports, firewall filtering
- TCP Protocol: ARQ, TCP window Flow Control, TCP session management
- UDP Protocol: functions, examples of use

 

IP Network Management

- DHCP: automatic IP address configuration
- SNMP: network monitoring and configuration

 

Link-level Protocols : "sub IP"

- LAN :  Ethernet MAC

- WAN : Frame Relay, ATM, PPP
- PPP Protocol : operation principles, LCP, NCP, PAP-CHAP authentication, Multi-link PPP

- NAS et AAA servers, RADIUS protocol

 

Internet Application Protocols

- DNS (Domain Name system) : domain name structuring, name servers hierarchy, DNS records, Name-IP address resolution
- Terminal Emulation TELNET, FTP  File Transfer
- World Wide Web WWW: HTTP protocol, HTML, WML, XML

- Fire-wall operating principles

- Intranet, Extranet

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IP-INTERNET: ADVANCED


Panorama of the various outstanding evolutions in the IP “world”  (technologies, services and networks) with:

 

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Course Objective

 

Provide a detailed overview of the main technology evolutions in the IP world:

·         IPV6

·         IP-QoS : IntServ, DiffServ

·         Secured IP: IPSec

·         IP over Optics

·         IP Broadband Access: ADSL, Cable

·         IP over Mobile Networks

·         IP Telephony

 

Audience:

Technical person looking for training on IP protocols and networks (Internet, Intranet, Extranet)  

 

Prerequisite

Basic knowledge on the IP protocol and on IP network operation principles

 

Duration: 3 days

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Table of Contents

NEW IP TECHNOLOGIES

 Introduction: current IP network limitations
Quality of Service, Addressing and routing, security, Transport of real time media, Routing Performances

IP Quality Of Service Control
"Integrated Services", "Differentiated Services", MPLS, IP traffic management (WFQ, xRED, CAR) and  "policy management" 

New addressing and routing capabilities
IPV6, Multicast IP, address management: DHCP, NAT, dynamic routing: OSPF, BGP, PIM, Mobile IP

Security
RADIUS, IPSec, "Internet Key Exchange", "digital certificates"

Multimedia over IP
Voice and Video Coding, RTP and RTCP, call control (H323, SIP, PSTN/ISDN Gateways)

 High Speed IP routing and switching
 IP switching, IP over ATM/FR, MultiProtocol Label Switching (MPLS)

 PPP Point to Point protocol evolution
Multilink and multiclass, "Tunnelling" (PPTP, L2TP, PPPoE), billing

 NEW  IP NETWORKS

Backbone IP Networks
Bearers (ATM, SDH, DWDM), Terabit IP network, QoS (Diff-Serv, MPLS), Giga PoP

IP fixed Access Networks
Network architecture, RAS (N & B), service and subscriber management (SMS),
ADSL, Cable and radio (LMDS) access topologies

 IP Mobile Access networks and services
Mobile networks (GSM, GPRS, UMTS), mobile services WAP

 Public IP networks and services
Internet 2 (VBNS, Abilene), "next generation public network" NGN,
Interworking with PSTN/ISDN

 Private IP networks and services
IP-VPNs  (L2TP, IPSec, MPLS), VoIP, IP private telephony

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IP-VPN ²TECHNOLOGIES AND NETWORKS ²

 

 This course presents the new VPN (Virtual Private Network) technologies based on private or public networks IP, the IP-VPN application field, IP-VPN network implementation, the advantages and disadvantages of this technology compared to the current solutions (VPN Frame Relay). 

The reviewed IP-VPN  technologies are:  the tunnelling " (Level 2:  PPTP and L2TP and Level 3:  IPSec) and the  " virtual routing " combined with the MPLS (MultiProtocol Label switching) protocol.  The applications considered are: Corporate LAN remote access, Intranet, Extranet and voice over IP.

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Course Objective

 

Presentation of the new VPN (Virtual Private Network) technologies  based on IP:

·   Introduction on VPN and on current VPN solutions such as FR-VPN

·   IP-VPN technologies overview

·   IP-VPN tunnelling technologies: L2TP and IPSec

·   IP/MPLS VPN technology

·   IP-VPN case studies: remote access, Extranet, Intranet, VoIP

·   IP-VPN product and service offering

 

Audience:

Technical person looking to be up-to-date on the new IP-VPN technologies and their applications  

 

Prerequisite

Basic knowledge on the IP protocol and on IP network operation principles.

 

Duration: 2 days

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Table of Contents

IP-VPN Technologies

VPN: basics
Definition, Applications, requirements  (Quality of service, security, management), legacy solutions: VPN Frame Relay or ATM, VPN networks Classification

Legacy solutions: VPN FR or ATM
Technologies FR or ATM, VPN Characteristics, SLAs, VPN management, Intranet, Advantages and drawbacks

Survey of IP-VPN technologies
IP bearer networks: Public or private,  "tunnelling" (L2TP or IPSec), or "virtual routing" (ATM/FR or MPLS), related Positioning

"PPP" tunnelling: PPTP or L2TP
Principles, protocol, Quality of Service, addressing, security, "policy management»: Radius, SLAs, application field, advantages and drawbacks

IP tunnelling: IPSec
Principles, protocol, Security (IKE, PKI, certificates), Quality of Service and addressing, VPN management, SLAs, application field, advantages and drawbacks

IP virtual routing
Principles, variants (ATM, FR, MPLS), VPN-MPLS protocol and architecture, Quality of Service and addressing, VPN management, SLAs, application field, advantages and drawbacks

IP-VPN technologies comparison
Application fields, Performances and Quality of Service, security management, Flexibility and simplicity of management, Implementation Costs, Maturity and standardisation, migration

 

IP-VPN Networks implementation  

 Remote Access
Drawbacks of the conventional solution (dial up access), Internet-based new solutions: tunnel PPP or IPSec, Possible implementations: operator or client initiated, Equipments to use: tunnel agent and server, VPN management centre, Market offer

 Intranet-Extranet Networks over  “private IP”
Drawbacks of the conventional solution (VPN Frame Relay), IP-VPN new Solutions: IPSec over IP Diff-Serv, "MPLS", Implementation, Equipments to use: VPN router, VPN management centre, Market offer

 Intranet-Extranet Networks over Internet
IP-VPN over Internet: "IPSec", implementation, Equipments to use: IPSec router, VPN management centre, Market offer

 Voice & Data IP-VPN: VoIP
Voice & Video coding technologies; « Voice over Packet » solutions: Voice over FR, ATM, or IP
The VoIP solution:  implementation, Equipments to use: IPSec router, VPN management centre, Market offer 

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IP-MPLS TECHNOLOGIES AND NETWORKS 

 

 

IP networks are faced with problems of performance and Service Quality, due to a huge increase in traffic.  If not dealt with, these problems may impede the expansion of the Internet and the development of new services such as IP Multi-media (VoIP), and IP-VPN private networks.

To solve these problems a new technology is emerging: MPLS, Multi-Protocol Label Switching.
MPLS combines the advantages of IP routing and packet switching as being used in ATM or FR data networks.  MPLS is the standardised technology for IP switching, increasing the speed of packet routing in IP backbone networks.  With MPLS, network operators can also perform traffic engineering in their network. IP Quality of Service can be implemented through MPLS.

 

MPLS field of application is very wide.  MPLS should generalize as a switching control protocol to be used on different bearers, such as WDM. MPLS is been called in that latter case “Lambda switching”

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Course Objective 

· Presentation of the MPLS technology, its applications and its implementation in IP networks.
· Description of the label switching technique
· IP Traffic engineering with MPLS
· Lambda switching: IP over WDM
· Applications: IP transit switching, IP-QoS, IP-VPN 

· Product and Services offering

 

Audience:

Technical person looking to be up-to-date on the new IP-MPLS technologies and their applications  

 

Prerequisite

Basic knowledge on the IP protocol and on IP network operation principles.

 

Duration: 2 days

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Table of Contents

 

MPLS TECHNOLOGY

 

IP routing in Internet

· Internet network Architecture

· Routing principles used in Internet
· Level 2 switching (ATM, Frame Relay)
· IGP routing: OSPF, IS-IS

· EGP routing: BGP4

 

Label switching principles

· Why label switching
· Label switching basic principles
· Label distribution
· MPLS ancestors: Tag Switching, IP Switching, CSR, ARIS
· Standarization work and the RFCs

 

MPLS : the new IP switching standard

· Definitions : FEC, label, LSP, etc.
· Example of MPLS operation
· Hierarchical Routing and label stacking
· Encapsulation of MPLS in lower layer protocols : ATM, FR, PPP, Ethernet
· MPLS combined with routing protocols

 

Label distribution methods

· Principles and alternatives for label distribution
· Path labelling signalling
· Centralized or decentralized distribution
· Unsolicited or on-demand distribution
· Independent or ordered label distribution
· Paths to be labelled: point to point, multipoint to point, point to multipoint
· Loop prevention

 

LDP Label Distribution Protocol

· LDP protocol overview
· Neighbour discovery
· Neighbourhood management
· Label exchanges: different operating modes
· Interdependency with IP routing protocol
· Loop prevention mechanism with LDP
· MTU and TTL management with LDP

 

 

Label Distribution with RSVP

· RSVP label distribution principles
· Label exchanges with RSVP
· Interdependency with IP routing protocol
· Example: route change
· Loop prevention mechanism with RSVP
· MTU and TTL management with RSVP

 

TRAFFIC INGENEERING WITH MPLS

 

Solutions for traffic engineering

· Définition of traffic engineering
· Current methods for IP traffic engineering : routing metrics
· Explicit routing
· Failure protection: fast reroute
· Load sharing

 

Explicit routing with MPLS

· Principles
· Ip source routing versus next hop routing
· Explicit routing with RSVP : RSVP Tunnel
· Explicit routing with CR-LDP

 

 

MPLS APPLICATIONS


IP QoS Implementation with MPLS

· IP Differentiated Services
· CR-LDP and IP Diff-Serv
· RSVP and IP Diff-Serv
· Examples

 

IP-VPN implementation with MPLS

· MPLS-VPN networks
· Quality of Service Control
· Example : Intranet

 

 

Lambda Switching : MPlS

· MPLS as the Control Protocol to set up optical paths
· On-demand optical bearer control
· A new class of optical cross connect and multiplexer equipments
· Network management with MPLS :  LMP (Link Management Protocol)
· MPLS extensions : le MPlS  (lamba switching), G-MPLS

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