Title: MAGGIE NIIT- SLAC On Going Projects
1MAGGIE NIIT- SLACOn Going Projects
- Measurement Analysis of Global Grid Internet
- End to end performance
2Team Members
- SLAC
- Les Cottrell
- Yee-Ting Li
- Asif
- Shahryar
- Akbar
- NIIT
- Arshad Ali
- Umar Kalim
- Adnan Iqbal
- Faran Javed
- Fahad Satti
- Nauman
3Projects
- 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
4PingER Methodology
gtping remhost
Uses ubiquitous ping
Remote Host (typically a server)
Internet
Monitoring host
10 ping request packets each 30 mins
Once a Day
Ping response packets
Data Repository _at_ SLAC
Measure Round Trip Time Loss
5PingER (Sub Projects)
- SmokePing PingER Integration
- ViPER - Visualization for PingER
- AMP PingER Integration
- PingER Executive Plots
- PingER Management
- ICFA/SCIC Report
Most of South Asia has good connectivity
- Greater Coverage Area
- Min RTTs are decreasing globally
For S.Asia Loss decreasing, still far behind
others
6DataGrid WAN Monitoring Infrastructure (DWMI)
Terapaths Monitoring Project
- Terapath
- fully configurable passive monitoring
infrastructure based on netflow records exported
from routers - data collection and aggregation schemes
- Flexible reporting infrastructure
Traffic In
Traffic out
7Topology Service for PerfSONAR
- PerfSONAR
- Measurement Point Service
- Measurement Archive Service
- Authentication Service
- Lookup Service
- Topology Service
- Transformation Service
8Topology 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.
9Trilateration Utility for Locating IP Addresses
(TULIP)
- www.slac.stanford.edu/comp/net/wan-mon/tulip/
- Java applet (needs Java Webstart)
- Friendly client, easy vizualization
- Need landmarks around world
Enter target
Pings min/avg/max from landmarks to targets
Landmarks
Target
Traceroutes from landmarks to targets
10Automated Event Detection
- Based on IEPM-BW
- Different Network Monitoring tools (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)
- Alerts are
- Detected
- Reported through e-mail
- Stored in database
- Made available on web
11Event Diagnosis
- 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. - Start from high level to very low level to help
locate, identify and verify cause of alert
Heuristics based approach
12Proposals (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)