Torrent
7200 WTS Key System Features
Realistic Mobile Simulation
A central feature of the system is that it is realistic, and
simulates mobiles and the application data traffic that they
generate as precisely as possible. In particualr, mobiles are
stateful and have their own network stacks built-in.
Realistic Network Simulation
Because the entire network aroudn the system under test is
authentically simulated, compelex tests such as inter-ASN gateway
handover with ensuing R3 relocation and authenticator relocation can
be performed -- all with concurrent data path continuity testing.
Commercial Hardware and Software
Because our systems run primarily on Linux, off-the-shelf PC
hardware can be used. Thus the Torrent solution rides both the PC
hardware power curve and the Linux operating system power curve. As
a convenience, Mobile Metrics certified hardware platforms may be
used if desired.
Highly Parallel Simulation
Parallelism is supported on numerous levels. Typically, parallelism
is created when more than one test case is executed at the same time
during a test suite of by hand. However, parallelism can be extended
down to the individual mobile subscriber as illustrated in the
following mobile script:
attach bs <asn1>
parallel:
http_get url http://test.mobilemetrics.net
handover bs <asn2>
parend
detach
Full Automation Support
Test cases may be fully automated and allow the end user to interact
with the system under test via ssh, telent, ftp, etc. through an
Expect style interface.
Any traffic profile can be scaled linearly by simply adding more
computing hardware, and this can be accomplished wihout having to
rewrite or otherwise modify test cases.
Ease of Use
The Torrent 7200 features a simple
installation process and intuitive multi-user GUI. And it does not
require programming knowledge to operate.
QoE Characterization
A key aspect of the system is that it allows the end subscriber's
experience to be characterized through a number of key performance
indicators (KPIs). For each KPI, the system tracks not only the mean
and standard deviation, but a complete high resolution histogram as
shown below for MMS:
Histograms are particularly useful for studying the effect of
background traffic on interactive traffic, especially under heavy
loads.
QoS You Can See and Hear
A unique feature of the system is that it allows any PC to connect
to one of the simulated mobiles and relay all of its traffic through
it. In this way, the performance of streaming media applications
such as YouTube can be subjectively evaluated under different
traffic conditions.
Detailed Hierarchical Statistics
Hundreds of statistics are captured by the system on both the MTS
and NTS and they are organized in a hierarchical manner to allow
both the big picture and the finer details to be seen more clearly.
These statistics may be examined in real time by test cases, or they
may be exported in build via CSV file to Excel. Additionally KPIs
may be graphed dynamically.
Full Messaging Control
All control and data messages and their associated message flows may
easily be modified by the end user using oru patent-pending
filtering layer. This allows a virtually limitless number of error
scenarios or unusual messages flows to be tested.
Network Service Assurance
While the Torrent system was originally designed for lab use, it may
also be used to perform in-service networkmonitoring. For example,
network entry, handover and data path functionality can be
spot-checked periodically and an alarm raised if failures are
detected.
Extensive Dataplane Support
Dataplane functionality is seamlessly and naturally integrated into
the system. Each mobile directly supports: IP, TCP, UDP, HTTP, WAP,
MMS, PTT (PoC), SIP, RTP, RTCP, FTP, SMTP, POP3, ICMP, DHCP, and
DNS.
Free Demo
To register for a free online demo, please
click here, otherwise for further technical information, or
specifications, please contact Mobile Metrics sales.
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