Transcript Presentation to Dr. Harvey Newman (Caltech) about NIIT SLAC

MAGGIE NIIT- SLAC
On Going Projects
Measurement & Analysis of Global Grid & Internet
End to end performance
Team Members
SLAC
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Les Cottrell
Yee-Ting Li
Asif
Shahryar
Akbar
NIIT
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Arshad Ali
Umar Kalim
Adnan Iqbal
Faran Javed
Fahad Satti
Nauman
Projects
• PingER
• DataGrid WAN Monitoring Infrastructure
(DWMI) Terapaths Monitoring Project
• Trilateration Utility for Locating IP
Addresses
• Event Detection
• Event Diagnosis
• Topology Service for PerfSONAR
• Network Weather Forecasting
• Proposals under discussion
PingER Methodology
Uses ubiquitous ping
Monitoring
host
Internet Remote
Host
(typically
a server)
Data Repository @
SLAC
Measure Round Trip Time & Loss
PingER (Sub Projects)
Most of South
Asia has good
connectivity
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SmokePing PingER Integration
ViPER - Visualization for PingER
AMP PingER Integration
PingER Executive Plots
PingER Management
ICFA/SCIC Report
• Greater
Coverage Area
• Min RTTs are
decreasing
globally
For S.Asia Loss decreasing, still far behind others
DataGrid WAN Monitoring Infrastructure
(DWMI) Terapaths Monitoring Project
• Terapath
Traffic In
• fully
configurable
passive
monitoring
infrastructure based on
netflow
records
exported from routers
Traffic out
• data collection and
aggregation schemes
• Flexible
reporting
infrastructure
Topology Service for PerfSONAR
• PerfSONAR
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Measurement Point Service
Measurement Archive Service
Authentication Service
Lookup Service
Topology Service
Transformation Service
Topology Service for PerfSONAR
• To archive network topology information needed
for the operation of perfSONAR and
• Visualization tools.
• Each AS has to maintain its own topology database
and publish it to the perfSONAR framework.
• The ToS will define a topology information data
format to allow for an easy processing of topology
information.
• Beside of the current topology, it should contain
past and planned network configuration.
• Each AS should register its ToS with the Lookup
Service, so that the topology becomes available to
every interested user.
Trilateration Utility for Locating IP
Addresses (TULIP)
• www.slac.stanford.edu/comp/net/wan-mon/tulip/
• Java applet (needs Java Webstart)
Enter target • Friendly client, easy vizualization
• Need landmarks around world
Pings min/avg/max from landmarks to targe
Target
Traceroutes from landmarks to targets
Landmarks
Automated Event Detection
Based on IEPM-BW
(Ping, IPerf, Thrulay,
Pathchirp etc)
Variety of Metrics (Throughput, RTT, available
bandwidth, Traceroutes)
Topology (5 Monitoring Hosts, Over 25 Monitored
nodes)
Different Mechanisms (Holt-winters, Plateau etc)
Different Network Monitoring tools
Alerts are
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Detected
Reported through e-mail
Stored in database
Made available on web
Event Diagnosis
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End-to-end analysis; assume that the
problem may not just be from the
network
Initiate analysis of all available results
when an event is detected
Search Event DB for each metric checked
on each host and used to cross correlate
results between Monitoring Hosts or
Monitored Nodes
Use heuristics defined with a simple
summation algorithm to narrow down the
location of a fault.
Tiered system used to pin-point exact
cause of problem.
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Start from high level to very low level to
help locate, identify and verify cause of
alert
Heuristics based approach
Proposals (under process)
• To establish a network monitoring infrastructure
in Pakistan
• Next Generation Network Monitoring for Pakistan
• to join the International perfSONAR project
(currently: Europe, US & Brazilian NRENs):