pdf_gross.gifIP for Telecom Professionals -
Module 3: Advanced Issues

[3-day course, Euro 3,450.- (net) per participant]

backtotop.gifReview of the TCP / IP Protocol Stack

Course Description

  • MAC –Layer
    (Ethernet, PPP)
  • Address Resolution
  • IP Transport and Control
  • IP Routing
    (RIP, OSPF, BGP)
  • Applications
    (HTTP, FTP, SMTP, POP3, RTP, H.248, SIP)
    • Introduce and review the architecture of our Test Network
    • Introduce SIP Server functionality and SIP Client Applications

backtotop.gifIP Networks as Transport in Telecommuncation

  • Signalling Transport (SIGTRAN)
    Detailed Overview, User Adaptation Protocols (M2UA, M3UA, SUA), Security Issues
  • IP Tunneling
  • Backgrounder
    Overview of Codec Types (Media Codecs, Audio Codecs, Video Codecs)

backtotop.gifVoice over IP

  • H.248 / MEGACO
    Functions, Protocol Architecture
  • Introduction to SIP and SDP
    Frame Types, Messages, Parameters, Message Sequences and Transaction Flows
    • SIP-Session Setup and Release. Recording of the session at our Test-Network. Evaluation of the Traces.

backtotop.gifMobile IP

  • Concepts and General Operation (Address Forewarding)
  • Home Agents, Foreign Agents, Router Advertisments, Registration Process
  • Mobile IP Data Encapsulation (Tunneling), Efficiency and Security Issues

backtotop.gifQuality of Service in IP Networks

  • The QoS Issue
    What is QoS in IP-Networks
  • Approaches and techniques
    (IntServ, DiffServ, Traffic Inspection), Pros and Cons of these techniques.
  • QoS in the Link layers
    (QoS in Ethernet-based networks, QoS in ATM-based networks)
  • Details of IntServ
    Function, Frame Types, Parameters, Tunnel Setup and Release, Typical Use Case
  • Details of DiffServ
    Function, DSCPs, Per Hop Forwarding (PHB), Interaction of DiffServ with IntServ, Traffic Inspection and / or MPLS
  • MPLS
    Functions, Terminology, Architecture, Label Switched Paths (LSP), Label Edge Routers (LER), Label Switch Routers (LSR).
    • VoIP sessions / Video-over-IP in our test network.
    • Configuration of QoS parameters
    • Evaluating sessions with and without QoS, discussing consequences.

backtotop.gifSecurity in IP networks

  • Spoofing
    Content Alteration, Privacy Violations
  • Overview of SSL, IPSec, VPN
  • RSA Authentication and Encryption, X.509 Certificates and how they work
  • Overview of some Algorithms
    MD-5, SHA-1, DES and 3-DES, AES
    • Authenticated access to the FTP-server in our test network through a hashed predefined password.
  • RSA-Authentication and Encryption
    Public Keys and Private Keys, X.509 Certificates, RSAES and RSAEP.
  • Secure Socket Layer
    Initialisation, Session Keys, Operation, TLS
    • Recording and evaluation of the setup of an SSL-connection for e-commerce in our test network.
  • IPSec and VPN:
    Operation Modes, AH and ESP, IKE, ISAKMP
    • Setting up an IPsec VPN through our test network.
    • Recording and evaluating the involved signalling messages.