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Circuit Monitoring July 16 th 2011, OGF 32: NMC-WG Jason Zurawski, Internet2 Research Liaison
Scientific disciplines require greater network capacity and predictably to cope with growing data sets sizes and time constrained operations Cross-domain dynamic circuits, like those provided by the Internet2 ION Service, can be used to improve the connectivity – Provides guaranteed bandwidth – Ensures that the high bandwidth traffic doesnt interfere with other production traffic DYNES – A NSF-funded project to deploy dynamic circuit networking technology in support of the High Energy Physics community Will use the OSCARS circuit provisioning software – Will bring 33 new sites into the dynamic circuit network cloud with hundreds of users 2 – 2/11/2014, © 2011 Internet2 Dynamic Circuits
Current View Of Circuits If a failure occurs, what can a user do? 3 – 2/11/2014, © 2011 Internet2
Fixing This Circuit View Goal: to enable users to get measurements in their circuits while allowing domains to provide as much or as little information to the user as the domain wants Develop a solution in collaboration with other groups and organizations including DANTE, ESnet, the Network Markup Language Working Group and the Network Measurement Control Working Group – Broad agreement ensures that users can monitor their circuits, no matter what domains they traverse Multi-faceted approach – Enable domains to export monitoring data about circuits – Enable users to discover the domains that make up their circuit, and the monitoring data those domains contain about the circuit Leverage the standard perfSONAR infrastructure when available 4 – 2/11/2014, © 2011 Internet2
5 – 2/11/2014, © 2011 Internet2 Circuit Monitoring Architecture
6 – 2/11/2014, © 2011 Internet2 Circuit Monitoring Architecture perfSONAR Topology Service
7 – 2/11/2014, © 2011 Internet2 Circuit Monitoring Architecture perfSONAR Topology Service perfSONAR Measurement Archive perfSONAR Topology Service perfSONAR Measurement Archive perfSONAR Topology Service perfSONAR Measurement Archive
8 – 2/11/2014, © 2011 Internet2 Circuit Monitoring Architecture perfSONAR Topology Service perfSONAR Measurement Archive perfSONAR Topology Service perfSONAR Measurement Archive perfSONAR Topology Service perfSONAR Measurement Archive
9 – 2/11/2014, © 2011 Internet2 Circuit Monitoring Architecture perfSONAR Topology Service perfSONAR Measurement Archive perfSONAR Topology Service perfSONAR Measurement Archive perfSONAR Topology Service perfSONAR Measurement Archive
Two broad components – Domain Software Agent Creates Domains circuit descriptions Registers these descriptions with a perfSONAR Topology Service – A Web UI client that displays statistics about a Domains current and historical circuits 10 – 2/11/2014, © 2011 Internet2 Implementation
This agent is the glue that connects together a Domains provisioning software (OSCARS) and monitoring infrastructure with the perfSONAR services so that users can find information about circuit statistics When new circuits are brought up, the agent looks at the intra-domain path for the circuit, and builds a description of that path. – This description is then registered into a perfSONAR Topology Service Needs to know how the domain monitors its devices to ensure an appropriate description of the circuit – If configured, the agent can use a user-defined script to start circuit monitoring 11 – 2/11/2014, © 2011 Internet2 Circuit Monitoring Agent
Everyone has their own method of monitoring their hardware Define the needed functionality instead of requiring a specific solution – Offer a specific solution to users who want to use it Requirements: – Software that can measure the operational status and utilization of the elements making up the circuit – These measurements are made available using standard perfSONAR protocols As long as the monitoring meets the above requirements, it can be made to work in the Circuit Monitoring infrastructure 12 – 2/11/2014, © 2011 Internet2 Router/Switch Monitoring Component
Specific Solution: ESxSNMP – Developed by Jon Dugan at ESnet – Uses SNMP to monitor operational status and utilization statistics for all equipment elements, including physical interfaces, VLAN interfaces and LSPs – These interface statistics are then made available using the perfSONAR-PS SNMP MA – This software will be packaged for easy installation 13 – 2/11/2014, © 2011 Internet2 Router/Switch Monitoring Component
14 – 2/11/2014, © 2011 Internet2 Architecture - Monitoring Agent Router OSCARS ESxSNMP Or Similar Measurement Archive Topology Service Monitoring Agent optional
The distributed nature of the data doesnt mesh well with the near-instantaneous results expected by web users The Web UI includes collector daemons that lookup and retrieve topology and measurements about the end-to-end circuit from each domain, and store them in a local cache The Web UI then uses the cached information to display end-to- end circuit statistics to the end user 15 – 2/11/2014, © 2011 Internet2 Web UI Client
16 – 2/11/2014, © 2011 Internet2 Architecture – Web UI Client Router OSCARS ESxSNMP Or Similar Measurement Archive Topology Service Topology Collector Measurement Collector Topology/ Measurement Cache Web GUI
17 – 2/11/2014, © 2011 Internet2 Web UI Client – Inter-Domain Path
18 – 2/11/2014, © 2011 Internet2 Web UI Client – Intra-Domain Path
19 – 2/11/2014, © 2011 Internet2 Web UI Client – Intra-Domain Path
Circuit Monitoring July 16 th 2011, OGF 32: NMC-WG Jason Zurawski, Internet2 Research Liaison For more information, visit 20 – 2/11/2014, © 2011 Internet2
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