AND – A technical introduction
Advanced Network Design
AND FaultLocalizerInteractive Localization of Network
Disturbances
D. Kelly, 27 February 2009
Why network monitoring?
Reduce maintenance costs
Detect Fault ASAP
Resolve network fault ASAP
Maintaining reliable multimedia networks
Comparison with incumbent telcos
Keeping customers online ...
... keeping customers
AND FaultLocalizer
AND FaultLocalizer
Interface to network monitoring systems
Visualises alarms in network documentation
Alarms generated by NMS
Alarms manually generated in AND network documentation
Table overview of current alarms (filtering possible)
Alarm hotspots - geographical overview of current alarms
Comparison of performance data with AND calculations
Combines AND network simulation with live information
AND FaultLocalizer
Introduction
Alarming & Monitoring Solutions
Manual tracing for common cause failure
Transponder monitoring
Statistical analysis monitoring
Others
AND FaultLocalizer
Common Cause Failure
Select problematic outlets
Colour coding denotes number of customers affected
Identify suspect device at common point
Change component’s operational status to disturbed
Alarm table is automatically updated
Corresponding hotspot alarm is activated
AND FaultLocalizer
Tracing in AND documentation
Monitoring Solutions
Functions
Transponders strategically placed in active network components
amplifiers, power supply units, etc.
Pre-defined tolerance values stored in transponder
Network component monitors own performance
NMS polls transponder or trap is set in transponder.
If value lies outside tolerances NMS generates warning message
Market examples
ROSA, Cisco/SA
EMS, Teleste
KOM, Kathrein
Promptlink
Proxilliant (ingress measurement)
AND FaultLocalizer
Transponder Monitoring
Monitoring Solutions
Functions
Gather and analyse network traffic & performance data
Typically via cable modems and CMTS
Detects network issues based on analysis results
Market examples
ServAssure from Arris (previously Stargus, C-Cor CableEdge)
Auspice (recently acquired by Arris)
Visum from Teledesign, Brazil
AND interfaces
Provision of network structure data
Collected or exported?
Reception of alarm data
AND FaultLocalizer
Statistical Analysis Monitoring
Monitoring Solutions
PathTrak, JDSU
Enables operator to identify ingress issues in upstream
Alarm information limited to fibre node
Handled similarly to transponder monitoring solutions
Hunter, Arcom Digital
Uses radar technology to identify location of network issues
Marker known as common path distortion (CPD)
Handled similarly to statistical analysis monitoring
CPD alarm with affected node and zone information
Ingress alarm with affected narrow zone information
Outage alarm based on node return signal processing
AND FaultLocalizer
Other Solutions
AND FaultLocalizer
AND FaultLocalizer
IT Overview
AND Data-base
LegendDaCo = Data CollectorNIS = Network Infrastructure
= data flow between AND and NMS
AND SmartServer
DaCo
NMS Transponder Monitoring
Alarms
HFC Network
NMSStatistical Analysis
Monitoring
Alarms
NISInterface
NIS
CRMSOAP I/F
CRM Database
AND FaultLocalizer
Alarm ID (from NMS)
System ID (from NMS)
Component ID (from NMS)
Alarm message (from NMS)
Severity level status
Low (default), Medium, High
Alarm hierarchy status
Primary (default)
Secondary (i.e. follow-on alarm)
Alarm counter
Alarm acknowledge
AND Localizer
Alarm Data
AND FaultLocalizer
Filter alarms to show specific region
e.g. Munich South
Edit alarm states
Delete alarms
Search alarms
Acknowledge alarms
Hide/unhide
Secondary alarms
According to severity levels
According to NMS
Sort alarms
AND FaultLocalizer
Alarm Table Functions
AND FaultLocalizer
AND FaultLocalizer
Alarm Table
AND FaultLocalizer
AND FaultLocalizer
Alarm Hotspot Overview
Alarm Filtering
Area filter for monitoring stations
Zip code
Determine monitoring source
Colour coded (user definable)
Hide/unhide alarms according to NMS
Determine severity level
Low (default), Medium, High
Hide/unhide alarms according to severity level
Distinguish between primary and secondary alarms
Evaluation by AND
Hide/unhide secondary alarms
AND FaultLocalizer
Alarm Management
Provisioning monitored components in AND
Monitored Component ID
System ID of NMS
Uniqueness of Component ID verified
Informing service staff
E.g. E-mail to service staff on priority issues
Informing call desk
Determine affected subscribers
Address forward to CRM
Keeping customers updated
AND FaultLocalizer
Future Developments
Populating transponder with threshold values
Network documentation updates taken into consideration
Real time level queries
Real-time values comparison with AND calculations.
Calling up NMS from AND
Accessing further information
AND FaultLocalizer
AND FaultLocalizer - Roadmap
Stage 1 – ca. 06/2009
Interface to network monitoring systems
Geographical & table overview of current alarms
Visualisation of alarms in network documentation
Stage 2 – ca.10/2009
Alarm Management Enhancements
Stage 3 – ca. 02/2010
Population of transponders with AND data
Comparison of performance data with AND calculations
AND FaultLocalizer
AND – A technical introduction
Thank you
for your attentionDiarmuid KellyANDsolution
www.and-solution.com