26601 Agoura Road | Calabasas, CA 91302 USA | Tel + 1-818-871-1800 | | www.ixiacom.com Document No.: 915-2742-01 Rev A July 2014 - Page 1

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Next-generation wireless networks are evolving into "all-IP" architectures, and SS7 over Internet Protocol (IP) is becoming more prevalent as intelligent gateways become the de facto technology used to interconnect wireline and wireless networks. Ixia’s Message Generator and Traffic Simulator™ (MGTS) is the leading product for testing wireline and wireless network convergence.

The MGTS offers a multi-user, multi-protocol programmable test system that emulates any SS7/PSTN entity or SS7 application database, and measures the functionality and performance of signaling and media gateways. The MGTS uses powerful underlying platforms, a diverse line of network interface cards, and an extensive library of protocol test modules to significantly reduce product development time, lower production costs, and ensure conformance to telecom industry standards.

MGTS reduces product development time by allowing multiple users to perform tests concurrently. Early in the product lifecycle, the MGTS can emulate prohibitively expensive or difficult-to-locate network equipment. Farther along in the process, the MGTS can support load testing to measure how much traffic the equipment can handle.

MGTS also supports traffic flow monitoring between nodes in live networks. This flexible platform can be customized to provide the test scripts, software protocols, and hardware needed to solve each new challenge.

Testers can create complex, multi-protocol test sequences using the Protocol Adaptable State Machine™ (PASM). PASM is a complete development system that constructs common test cases by defining protocol message formats, sequencing, and operations. PASM can create any type of protocol message for use in test case sequences against a device under test (DUT).

With PASM, users can easily and simultaneously test circuit and packet switches over multiple interfaces. The test cases created can be executed in either simulation or load mode for functional and system integration testing. PASM helps significantly reduce the time needed to develop comprehensive 3G, VoIP and SS7 load tests.

Highlights

Supports hundreds of wireless protocols used to test 3G-UMTS, IMS, VoIP, SS7/SIGTRAN networks

Unmatched flexibility in customizing protocol messages and protocol state machines for functional, performance, and negative testing

Vast library of pre-built test scenarios that can be fully customized to specific test applications

Emulation of multiple nodes/interfaces simultaneously to fully isolate a device or system under test

Test control using a graphical user interface or command line interface

Flexible scaling with choice of platforms ranging from application-only (base IxCatapult software on a Linux-compatible platform) to ultra-high performance appliances

Multi-user, multi-protocol, multi-technology environment

Message Generator and Traffic Simulator™ (MGTS)

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Key Features

Easy-to-use GUI driven test development platform

Support for hundreds of wireless protocols for testing 3G-UMTS, IMS, VoIP and SS7/SIGTRAN devices and networks

Unmatched flexibility in customizing protocol messages and protocol state machines for functional, performance and negative testing

Vast library of pre-built test scenarios that can be fully customized to specific test applications

Emulation of multiple nodes/interfaces simultaneously to fully isolate a device or system under test

Test control using a graphical user interface or command line interface

Multi-user, multi-protocol, multi-technology environment

Supports creation of erroneous messages and/or erroneous call flows for negative testing

Supports customization of messages and call flows

Supports regression and automation

Supports various levels of logging for debugging with full message capture and decoding with time stamps

Supported Technologies

3G UMTS Core Network

IMS

VoIP

SS7/SIGTRAN

Test Measurements and Statistics

Calls per second

Successful calls

Failed calls

Calls in progress

Call duration

Transmitted and Received messages

Transactions per second

Busy Hour Call Attempt (BHCA)

Test Development Flow

Message Editor to build and/or edit protocol messages

Database Editor to build subscriber and/or network element databases

State Machine Editor to build the test cases

Define the load paramters

Network Map Editor to build the Test Network topolgy

Hardware configuration

Assignment of Simulated nodes to the hardware

Running the test

Results

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Message Editor

The Message Editor enables the user to build or edit User Defined Messages of the required protocols. The Message Editor GUI has the following features:

Add/Modify/Delete parameters

Saving UDM layers and default layers for use in other UDMs

Encapsulating (including) layers within other layers specifying parameters for message trapping

Specifying import and export flags in message templates

Importing and exporting messages and message layers

Decoding messages

Using optional parameters and pointer parameters in messages

Creating and editing message layers using the Free Format Bit

Creating UDM groups

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Database Editor

A database is one source for data imported into the message templates that a state machine transmits. A PASM database is associated with an entire state machine, not an instance of a state machine. For example, if you have 1000 instances of a state machine, only one copy of the state machine is used. Also, if you have ten state machines in a sequence group that are all assigned the same database, they use a single copy of the database. If you update the database, all ten state machines will use the same updated information. Each database supports up to 1 million subscribers.

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State Machine Editor

State Machine Editor GUI is used to write the test cases for various test cases. Please refer to its User Manual for more details.

Defining Sequence and Load Parameter Sequence Group Editor

The Sequence Group Editor provides a listing of pre-configured state machines (for example, Level 3 SFM or AIN SFM), or custom-configured state machines built with the State Machine Editor. The selected state machines can be saved as a test set to create a library of test groups.

The Sequence Group Editor allows the test cases to define load in 3 ways – Load Graph, Constant BHCA and Random Traffic. The Load is generated based on these parameters.

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Results

The runtime results in Load mode provide the following statistics for each Test Case (State Machine). The Load parameters are defined in the Sequence Group Editor.

Tx Start and Rx Start: The total number the Rx and Tx Test Case Passed: The number of Test Cases (or State Machines) that passed Failed: The number of Test Cases (or State Machines) that Failed Inconcl. The number of Test Cases (or State Machines) that Inconclusive In Prog. The number of active Test Cases (or State Machines)

The Results and Statistics are displayed depending on the load defined and generated in the Sequence Group Editor. The three ways of defined and generating load are: Load Graph, Constant BHCA, and Random Traffic.

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3G UMTS Core Network Test

Simulates RNC on IuCS/PS over SIGTRAN

Simulates HLR on MAP over E1/T1 and SIGTRAN on D and Gr interface

Simulates GGSN on Gn interface

Supports IP Pass-through for User Plane traffic over GTP-U tunnel

Supports CS Voice Traffic with various codecs – AMR-NB, AMR-WB, G.711, G.726 and more

Supports Direct Tunneling and Non-Direct Tunneling

Supports Mobile Originating Call, Mobile Terminating Call, Location Update, Authentication, and many other procedures

Type of SGSN Tests:

Determine the Max DT PDP contexts

Determine the Max Total PDP contexts (DT and Non-DT)

Determine the Max Number of Subscribers handled by SGSN

Determine SGSN stability behavior when the Attach rate is increased from 1 to 2000 per sec

Determine SGSN stability behavior when the PDP activation rate is increased from 1 to 1000 per sec

Determine SGSN behavior when its CPU utilization reaches 100%

Determine SGSN software BUGs and Memory leaks

SGSN

M

SC

3G Core Network

Ixia RNC

IuCS-IP

IuPS-IP

MAP-D

Gn

Ixia HLR

Ixia GGSN

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Supported Protocols

IuCS and IuPS Interface Standard Specification

NAS (MM, GMM, SM, CM, SMS) 3GPP 24.008 (R7, R8, R9)

RANAP 3GPP 25.413 (R7)

SCCP ITU-T Q.713

M3UA RFC 4666

SCTP RFC 4960

MAP-D and Gr Interface Standard Specification

MAP 3GPP 29.002 (R7, R8, R9)

TCAP ITU-T Q.771-775, ANSI T1.114

SCCP ITU-T Q.713

MTP3, MTP2 and MTP1 ITU-T

M3UA RFC 4666

SCTP RFC 4960

Gn Interface Standard Specification

GTP 3GPP 29.060 (R7, R8, R9)

IMS (IP Multimedia Sub-system) Test

AS

P-CSCF

PDF

I-CSCF

MGCF

IM-MGW

S-CSCF

BGCF

SGW

MRFC

HSS SLF

MRFP

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Supported Simulated Interfaces

Cx, Dx, Sh, Dh

Go, Gm, Gq

Mg, Mn, Mw, Mj, Mb, Mp, Mk, Mr, Mi

Supported Protocols

IuCS and IuPS Interface Standard Specification

SIP-I/T RFC 3261 and many of its extensions

DIAMETER RFC 3588 and many of its extensions

MAP 3GPP 29.002 (R7, R8, R9)

CAP 3GPP 29.078 (R7, R8, R9)

TCAP ITU-T Q.771-775, ANSI T1.114

SCCP ITU-T Q.713

M3UA RFC 4666

SCTP RFC 4960

MEGACO (H.248) ITU-T H.248

BICC ITU-T Q.1901 and Q.1902

RTP/RTCP RFC 3550, RFC3605

Codecs AMR-NB, AMR-WB, G.711 (a & u), G.726 and more

The IMS testing can be categorized inro four groups as below for user convenience based on typical user configurations. Each group will provide the necessary protocols required for testing all the elements within the logical grouping.

Access Network Testing

Core Network Testing

Interworking Testing

Application Server Testing

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3G HLR Test

Simulates MSC on MAP-D and SGSN on MAP-Gr (over E1/T1 and SIGTRAN)

Supports many MAP services/Operations including

o Location Update

o Roaming

o ISD (Insert Subscriber Data)

o PRN (Provide Roaming Number)

o SMS (Short Message Service)

o USSD

o Location Based Services

o Authentication

o Other MAP interfaces supported are:

E (MSC and G/S MSC): For Handover functions between MSCs

F, H, Gc, Gf, Gd

Supports up to 72 million BHCA (20,000 MAP transactions per sec)

HLR (DUT)

MAP-D

Ixia Simulated MSC

Ixia Simulated SGSN

MAP-Gr

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Type of HLR Tests

Determine the Max rate of Location Updates

Determine the Max rate of Roaming transactions

Determine the Max Number of Subscribers that a HLR can handle

Determine the Max Authentication rate

Determine HLR stability when various MAP transaction rates are increased from 1 to 20,000 per sec

Determine HLR behavior when its CPU utilization reaches 100%

Determine HLR software BUGs and Memory leaks

Supported Protocols

MAP-D and Gr Interface Standard Specification

MAP 3GPP 29.002 (R7, R8, R9)

TCAP ITU-T Q.771-775, ANSI T1.114

SCCP ITU-T Q.713

MTP3, MTP2 and MTP1 ITU-T

M3UA RFC 4666

SCTP RFC 4960

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Charging Test

Simulates any network elements in the above diagram

Supports all CAP, MAP, GTP’ and DIAMETER protocols

The CAMEL Application Part (CAP) is a signaling protocol used in the Intelligent Network (IN) architecture. CAP is layered on top of the Transaction Capabilities Application Part (TCAP) of the SS#7 protocol suite. CAP is based on a subset of the ETSI Core and allows for the implementation of carrier-grade, value-added services such as unified messaging, prepaid, fraud control, and Freephone in both the GSM voice and GPRS data networks. CAMEL is a means of adding intelligent applications to mobile (rather than fixed) networks. It builds upon established practices in the fixed line telephony business that are generally classed under the heading of (Intelligent Network Application Part) or INAP CS-2 protocol

The CAMEL Application Part (CAP) protocol provides mechanisms to enable operator services beyond the standard GSM services for subscribers roaming within or outside the Home PLMN (HPLMN). The CAP protocol extends the IN framework to GSM/3G networks for implementing IN-based services within GSM/3G networks.

Supports the following Services

o Basic Call State procedures (BCSM)

o Originating Call

o Terminating Call

CGF

CAP

HLR

MAP

Ga (GTP’)

SGSN(with gsmSSF, gsmSRF)

Ga (GTP’)

GGSN

CSCF

DIAMETER

SCP (gsmSCF)

CAP

MAP

MSC(with gsmSSF, gsmSRF)

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Apply Charging

o Establish Temporary Connection

Applicability of CAP protocol

o Applicable in Supplementary Services Invocation

Call Forwarding

Call Redirecting

Homing of pre-paid calls to HPLMN

Announcements

o Applicable to GPRS sessions and PDP contexts

o Applicable to MO and MT SMS

Any Time interrogation. The Charging Function (CGF) can query the HLR to provide Subscriber Status and/or location information at any time

Charging Operations

o Pre-Paid (MO, MT, CF)

o Free-Phone

o Premium Rate

o Personal Discount

o Location Dependent Charging

o Reverse Charging

USSD

o USSD call back for pre-paid roaming

o Control & Inquiry of IN services

Subscriber Dialed services

Serving Network Dialed Services

MO SMS

CS Mobility Management Notifications

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Supported Protocols

MAP, CAP, DIAMETER, GTP’ Standard Specification

MAP 3GPP 29.002 (R7, R8, R9)

CAP 3GPP 29.078 (R7, R8, R9)

TCAP ITU-T Q.771-775, ANSI T1.114

SCCP ITU-T Q.713

MTP3, MTP2 and MTP1 ITU-T

M3UA RFC 4666

SCTP RFC 4960

DIAMETER RFC 3588 and its extensions

GTP’ 3GPP 29.060 and 32.295

MGTS SS7

Protocol Adaptable State Machine (PASM™)

The MGTS utilizes PASM to enable the user to construct custom test cases graphically in a non-programmable environment. PASM is protocol-independent, supporting standard and proprietary protocols as well as variations from different countries.

STP Emulation Package

The package simulates STPs, including high-speed link STPs, which may be an integral step in test bed setup. Users can configure flexible test beds, reducing the cost of deploying actual STPs in a lab environment. STP emulation includes high-speed link STPs and can be configured as stand-alone or mated pair.

Automatic Level 2 procedures

Automatic Level 3 network management procedures

Configurable point codes, alias point codes, route set tales via a graphical network map

Adjacent and mated pair simulation

Support for multi-link configuration including combined link sets

Up to 20 digits for Global Title Translation (GTT)

Extensive traffic statistics reports

Maximum link capacity of 1.0 Erlang

Load generation at full bandwidth on HSL links.

User-definable MSU traffic mix and traffic rate

Background test traffic generation with random MSU length

Correlation of traffic transmitted and received for: o Cross STP delay measurement o Cross STP packet lost count o STP misroute detection

Extensive traffic reporting capabilities: o Delay distribution reports o MSU transmit and receive counts o MSU type transmit and receive counts

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SCP Simulation Package

With the use of the protocol adaptable state machine (PASM™), the MGTS creates SS7 message structures, contents and sequences, and signaling test cases against an SCP under test. The SCP may be advanced intelligent network (AIN), local number portability (LNP), interim standard 41 (IS41), or global system for mobile communications (GSM)/home locator register (HLR).

Local Number Portability (LNP)

Advanced Intelligent Network (AIN)

IS-41

GSM/HLR

Network Performance Load Simulation Package (NPLT)

The package generates and validates heavy traffic load across STPs under test to assess STP performance. The MGTS running NPLT can generate loads from one to 31 links, per simulated device.

NPLT Traffic Reports

NPLT traffic reports indicate the number of message signal units (MSUs) transmitted and received. NPLT Traffic Reports includes delay analysis. The delay analysis report segments the cross-STP delay into “delay buckets,” providing distribution based on the MSU generated and received during a test run.

Level 2/3 conformance

Level 2 conformance test package supports Q.781 MTP Level 2 and TA-1004

Level 3 conformance test package supports Q.782 MTP Level 3 and NOF 905

Intuitive and easy to use:

Graphically observe the execution steps in real-time

Log events for later viewing

Configure timers

Decode messages in real-time

COT/DTMF (generation and detection)

SSP - simulation and load

Level 2 test scenarios & verification

Test message scenarios

Sequence verification

Cross STP delay analysis

MTP & SCCP routing/switching analysis

User-defined Message (UDM) test utilities

N00 & LIDB testing & verification

GTT test scenarios

GTT cross STP delay analysis

Command line driven test utilities

ISDN User Part (ISUP) report

Automatic call gapping & termination request

LNP Simulation and Load

ISUP, TCAP, TUP, BT167

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MGTS LAPD Full Layer 2 LAP-D Support

Layer 3 State Machine Driven to support simulation / test sequences: o Q.931 o National ISDN 1 / 2 Support

Switch Emulation / TE emulation

Call Simulation with all services - Bulk Call load

Automatic call test procedures

Test extended supplementary services

Real-time layer decode

LAP-D Editor

Timer Controller

Supported Hardware

X800: 960-0333 or 960-0444 (for IP-Only)

X100: 960-0555: Supports 1-GbE and JET (J1/E1/T1) interfaces Please refer to the X800 and X100 datasheet

Ordering Information

Please Contact your local Sales Representative