 Spider
Network Surveillance System
In
the times of rapidly-changing and growing telecommunication
networks the need of constant monitoring become absolute. The
use of common channel signaling system No.7 (SS7/C7), while
providing enhanced contemporary services and features, forces
an introduction of a complex special SS7/C7 network. Quality
of service is heavily affected by SS7/C7 network faults and
congestions, and signalling problems may cause significant
revenue loss. Spider is centralized multi-functional system
designed to provide network-wide distributed monitoring and
management and it is aimed to timely detect and avoid such
situations. Spider's features are based on collecting and analysis
of signaling information. The system includes remote modules
(probes), central control unit, application modules (e.g.,
CDR server or database modules) and user stations connected
via a dedicated network (usually, TCP/IP-based). While meeting
all safety-related issues, a remote Internet-based user access
is also possible. The remote modules provide nonintrusive interface
to the E1/T1 links, store and decode signaling data analysis.
They are also responsible for synchronization and communication
with others modules. The major functionality of central unit
is whole system control and management, network wide information
elaboration and data presentation. Spider consists 6 main functional
modules: Spider Agent, Spider NM, Spider Tracing, Spider DR,
Spider AntiFraud, Spider QoS. Spider Agent is the core of Spider
system which directly collects signaling data. Spider Network
Monitoring (NM) Provides real-time SS7/C7 status monitoring,
signaling traffic measurements and statistics, protocol analysis,
and signaling accounting verification. Spider Data Records
(DR) is dedicated to generate and store CDR (Call Data Record)
and TDR (Transaction Data Record). This recording is based
on signaling information, and can be used for further charging,
quality of service assessment and fraud detection. Spider AntiFraud
module detects, captures and analyses suspicious subscriber
activity (e.g. excessive amount and duration of calls, call-backs
etc.). Spider Tracing module provides multi-protocol network-wide
call trace (voice calls, SMS etc.) and routing verification
features. It is useful to resolve complaints or billing issues
in real time. Spider QoS monitors quality of service and generates
carrier/destination based reports. It is aimed to detect growing
problems before they begin to affect customers.
Overall,
Spider monitors (in a distributed mode) all SS7 network elements,
collects and analyzes data (independently of switch types connected
to a signaling network), processes and displays network performance
data.
It also allows to assess a quality of service and detect an unauthorized access.
In the mean time, system modules can be used as a protocol analyzer to locally
monitor different signaling channels (SS7, etc).
In addition, you can use the system as a new marketing information source while
monitoring incoming and outgoing calls (for example, to analyze an output of
advertising activities), to assess a switch performance, to measure a performance
statistics, etc.
Spider system is custom-tailored solution and it s installation process depends
on specific requirements and meets all specific network features. The system
is well scalable and may either collect data from dozens or hundreds signaling
links.
E-mail: nio1@niits.ru
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