High Speed Network Monitoring
and Traffic Analysis Peter Tatai
AITIA International, Inc.
AITIA Divisions
• Telecom – passive monitoring and active service solutions
• Speech – continuous speech recognition, voice portals, word spotting (poster)
• Simulation – simulation of complex systems, multiagent simulation tools
• Web – content & work flow management, portal development
• Design – innovative graphical solutions, chatbot information systems
Introduction of AITIA by a Chatbot
An example of chatbot information solutions
Telecommunication Division
Developing and providing software for•Network-wide Monitoring Systems•Telecommunications Traffic Analysis•Application Gateways & Service Logic•Fraud Detection Systems•Short Message (SMS) Handling•Support for Roaming Services and Testing•Location Based Services•Missed Call Notifications•EIR: Equipment Identity Register
Interface cards
Based on in-house developed cards:• 2x2 (1.5) Mbps PDH (E1/T1)• 2x155 Mbps SDH/SONET and ATM• 4x100 BaseT, copper• 4x1000 BaseT, fiber, copper
Utilizing L2 and L3 technologies:• SS7 MTP• HSL - many - e.g.30 links bundled• MTP3b, AAL-5• Ethernet, SIGTRAN, ATM
The Present
Our PassiveMonitoring Systems in Use
for 1…10 yearsSS7 & GPRS monitoring to cover complete networks
analyzes and stores traffic and call data (30 million calls/day)
creates statistics and debug info real-time call tracing filtering fraudulent calls right tool for handling customer complaints
Gigabit EthernetMonitoring monitoring Tbytes of data for traffic analysis to detect bottlenecks and other traffic problems on-line filtering and off-line processing software
GSM Monitoring System(SS7/PCM signaling links)
statisticsCDR
(TCP/IP)
CDRs(SQL/Net)
PMSServer statistics(TCP/IP)
NOC
alarms(SNMP/UDP/IP)
ProbeProbe
ProbeSS7bits
SS7bits
SS7bits
Monitor Probe Architecture
PCM / SS7 signaling links
SGA47 SGA47
SS7 decoder
MSUs
Signaling Linkconfiguration
Alarm thresholdson statistics results
CDR elements(IAM,ACM,...)
Signaling Link statistics,events
Remoteconfiguration
SS7bits
Server
Call Tracerequests &
results
RemoteCapture
Cli
ent X
Cli
ent Y
Call Trace
TS k. TS i. TS j.. . .
Some ReferencesT-Mobile
Entire GSM and GPRS network monitored (15 million calls/day)SMS handling (Welcome, Bon voyage, Info, Mass SMS)Gateways, Roaming Testers, USSD, Fraud Detection
Pannon GSM (Telenor)SMS handling (Welcome and Mass SMS)LBS – Location Based Services solution
VodafoneSMS handling (Welcome and Mass SMS)Roaming Testers
InvitelSS7 network monitoring and call statistics
Ericsson Network Emulator for VoIP services, Semi-Transparent Relay Function
NTT, Japan IP/ATM Network monitoring (1999) for the Japanese Gigabit network
Why to monitor?
• Everyday network maintenance • Traffic analysis• Debugging• Fraud detection • Bottleneck detection• Quality of Service • Handling customer complaints• Network optimization and planning
The Future
Aims
To develop a multipurpose board for NGN networks as a monitoring and data-processing unit with
• very high performance• low power consumption• high scalability• composability
Hardware Architecture of C-Board2x10 Gbit/s --- 8…16x0.1…3.5 Gbit/s
Foreseen Main Applicationsfor the C-Board
• Measuring traffic mix• Deep packet inspection• IMS SIP platform (IP Multimedia Subsystem, Session
Initiation Protocol)• Routing at Layer 2, Layer 3, GMPLS (Gigabit
Multiprotocol Label Switching)• Video transcoding• Media Gateway• Firewall• Traffic generator
The Team
AITIA and BME (Budapest University of Technology) common project
+ SCALOPES (Artemis) European project with 37 European
partners
Project leader: Pal Varga
Thank you for your attention!
AITIA International, Inc.www.aitia.ai