00b_Learning Solution Description

CN3203EN01GLA02 © 2013 Nokia Siemens Networks. All

rights reserved.

CN3203EN02GLA00

Packet Core Network Signalling

Learning Solution Description


2 © 2013 Nokia Siemens Networks.

All rights reserved.

CN3203EN02GLA00

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Contents

CN3203EN02GLA00 © 2013 Nokia Siemens Networks.


3

Contents

1 Product description

2 Learning Element objectives 2.1 Gb interface 2.2 Iu-PS interface 2.3 Sigtran 2.4 Gr interface 2.5 DNS messages debugging 2.6 Gn interface 2.7 Messages in Roaming Cases 2.8 DHCP and RADIUS messages 2.9 Tunnelled messages analysis 2.10 Direct Tunnel signalling procedures

3 Course programme

4 Learning environment




CN3203EN02GLA00

1 Product description

Product code CN3203EN02GLA00

Product name Packet Core Network Signalling

Category Advanced

Target group Who need advanced knowledge on 2G/3G core network signalling based on NSN product, such as: Technical Support Engineer, Second Line Maintenance, Integration Engineer, System Engineer

Objectives At the end of the course the participant will be able to:

Analyse and explain MM and SM procedures, such as PDP Context Activation in local and in roaming cases, involving DHCP or RADIUS and tunnelled messages

List and explain the most relevant interfaces in the packet core network, the protocol stacks on these interfaces and their significant messages and contents

Interpret signalling messages traces using WireShark protocol analyser

Duration 5 days

Delivery method Classroom training, theory and practice

Max. number of participants 4

Prerequisite courses UMTS Fundamentals , PCN Platform, GGSN and SGSN Operation and Maintenance

Underpinning knowledge & skills This course is recommended for students who have been working with the NSN GSM/UMTS equipment for at least a year. Knowledge of ATM/IP/Unix technology required.

Product description



5

Learning Elements Gb Interface

Iu-PS interface

Sigtran

Gr interface

DNS message debugging

Gn interface

Messages in Roaming Cases

DHCP and Radius messages

Tunnelled Messages Analysis

Direct Tunnel Signalling procedures




CN3203EN02GLA00

2 Learning Element objectives

2.1 Gb interface

After completing this Learning Element, the student should be able to:

Theory:

Describe the main functions of BSSGP signalling protocols in Gb

interface

Explain the Attach procedure in the Gb interface

Explain the PDP Context Activation procedure in the Gb interface

2.2 Iu-PS interface


Theory / Practical:

Describe the main functions of RANAP signalling protocols in Iu-PS

interface

Explain the Attach procedure in the Iu-PS interface

Explain the PDP Context Activation procedure in the Iu-PS interface

Describe the main functions of GTP-U in Iu-PS

2.3 Sigtran


Theory/Practical:

Draw SIGTRAN protocol stack and explain the role of each layer

Describe the function and structure of SCTP messages

Monitor and explain SIGTRAN messages from WireShark

Learning Element objectives



7

2.4 Gr interface


Theory/Practical:

Explain how the interaction between SGSN and HLR works

List the procedures supported by SGSN - HLR interaction

Describe procedures, their messages and information elements

2.5 DNS messages debugging


Theory / Practical:

Analyse DNS concepts and messages

Explain the structure and the contents of DNS queries

Analyse and interpret DNS message flows

2.6 Gn interface

After completing this learning element, the participant will be able to:

Theory/Practical:

Describe the interface between the SGSN and the GGSN

Describe different types of Gn control plane messages and the meaning of

their information elements

Draw a flowchart of messages of the PDP Context Activation procedure




CN3203EN02GLA00

2.7 Messages in Roaming Cases


Theory:

Explain Roaming Concepts

Describe the interface between the visited SGSN and the visited/home

GGSN

Analyse packet switched call set-up in roaming cases

2.8 DHCP and RADIUS messages


Theory/Practical:

Outline the message flow of DHCP communications and to explain the

use and the main contents of the DHCP messages.

Explain the Radius Authentication and Authorisation procedures and the

impact of GPRS network parameters and Radius server parameters on

Radius messages.

Describe the Radius Accounting process and the main Accounting

message contents.

2.9 Tunnelled messages analysis


Theory/Practical:

Describe the differences between various types of tunnels without

reference to notes

Explain the structure of tunnelled messages and the impact of the

message layers on routing

Interpret a message diagram that shows the message flow of the different

tunnel types

Learning Element objectives



9

2.10 Direct Tunnel signalling procedures


Theory/Practical:

Describe the Direct Tunnel Signalling procedures and messages

Explain the new Information Elements in Direct Tunnel Signalling

procedure messages




CN3203EN02GLA00

3 Course programme

Morning Afternoon

Day 1 Gb interface Iu-PS interface

Day 2 Iu-PS interface (cont.)

Sigtran

Gr interface

Day 3 DNS message debugging

Gn interface

Gn interface (cont.)

Day 4 Messages in Roaming Cases DHCP and RADIUS messages

Day 5 Tunnelled Messages Analysis

Direct Tunnel signalling procedures

Learning environment



11

4 Learning environment

Contents Seats and desks for 4 students

Whiteboard and four different coloured markers

Flipchart

Overhead projector and screen

Video projector

Notebooks, pens, and erasers for 4 students

Hardware One personal computer for each participant with IP access to network elements

WireShark analyzer installed on student's PC

2 mobile phones

1 NodeB, 1 RNC, 1 BSC, 1 SGSN, 2 GGSNs, 2 DNSs, 2 FWs, 1 MSC, 1 HLR, connection to an external network (ISP Network) that includes 1 Access Router and 1 Server

Software version SGSN SG8

HLR M15

DNS BIND 9.2

Functionality possibility to establish 3G and 2G MO-MT calls

possibility to trace signalling messages during calls

Predefined APNs in GGSNs and DNSs for all exercises – this course does not involve configuration issues

Second operator network (BG, GGSN, DHCP and Content Server)

GRX Network functionality (GRX Root DNS, etc.)

Documents

00b_Learning Solution Description