1. EGEE-III INFSO-RI-222667 Enabling Grids for E-sciencE www.eu-egee.org EGEE and gLite are registered trademarks EGEE-III Network activity overall Xavier Jeannin (CNRS/UREC) SA2 Activity Manager EGEE 08 (Istanbul) 24 September 2008

2. Enabling Grids for E-sciencE EGEE-III INFSO-RI-222667 SA2: Network activity in EGEE-III EGEE 08 Istanbul 2 Agenda SA2 Network activity –Technical Network Liaison Committee TNLC –EGEE Network Operations Center ENOC –EGEE-III Projects  LHCOPN support / operational Model  Trouble matching and correlation  Tools for troubleshooting  Grid site networking needs  Advanced network services  IPv6  Trouble Ticket standardization European Grid Initiative, National Grid Initiative –Lesson learnt from EGEE –Network activity in EGI/NGI Conclusion

3. Enabling Grids for E-sciencE EGEE-III INFSO-RI-222667 Network activity in EGEE-III EGEE 08 Istanbul 3 EGEE: An heavy network user With the courtesy of Bob Jones

4. Enabling Grids for E-sciencE EGEE-III INFSO-RI-222667 SA2: Network activity in EGEE-III EGEE 08 Istanbul 4 SA2 in EGEE-III Total of 375 FTEs in EGEE-III –9010 person months (vs. 11165 PMs in EGEE-II; ~20% less) –Grand total combining funded and unfunded contributions  No difference for execution of program of work! Network activity SA2 = 14 persons + TNLC, 159 PMs

5. Enabling Grids for E-sciencE EGEE-III INFSO-RI-222667 SA2 – EGEE-III SA2 Global view SA2: Network activity in EGEE-III EGEE 08 Istanbul 5 Support for the ENOC IPv6 (GARR, CNRS) Operational procedures (CNRS) LCG Support (CNRS) Operational tools and maintenance (RRC-KI, CNRS) Overall Networking coordination ENOC running TT exchange standard (GRNET) Advanced network services (GRNET) TNLC IPv6 (GARR, CNRS) Monitoring (DFN)s Site networking needs (RedIRIS) Troubleshooting (DFN)

6. Enabling Grids for E-sciencE EGEE-III INFSO-RI-222667 SA2: Network activity in EGEE-III EGEE 08 Istanbul 6 Technical Network Liaison Committee Technical Network Liaison Committee – TNLC –Facilitate cooperation between EGEE on the one hand and GÉANT2 and the NRENs on the other hand –CERN; CNRS, France; DANTE, UK - the GÉANT2 operator; RRC KI, Russia; DFN-Verein, Germany; GARR, Italy; GRNET, Greece; RedIRIS Spain... –but also SWITCH Switzerland, BELNET belgium, Nordunet Nordic backbone network (Finnish, Icelandic Swedish, Danish NREN), EENET, SRCE. Main themes –EGI-NGI –Monitoring –Standardization of network trouble tickets –Advanced network services –Trouble ticket

7. Enabling Grids for E-sciencE EGEE-III INFSO-RI-222667 Role of the ENOC ENOC ensuring E2E connectivity for Grid sites Assess the impact on the Grid of network trouble Troubleshoot problems –Provide support to users –Identify the faulty domain Assess the network connectivity of the Grid sites SA2: Network activity in EGEE-III EGEE 08 Istanbul 7 GÉANT2 NREN A RC 1 Grid site 1 NREN B RC 2 Grid site 2 Operated by DANTE Operated by NOC of NREN A Operated by NOC of NREN B Operated by NOC of RC2 Operated by NOC of RC1 ENOC ensuring E2E connectivity for Grid sites on the whole path

8. Enabling Grids for E-sciencE EGEE-III INFSO-RI-222667 The ENOC –A single point of contact between EGEE and the NRENs where EGEE and the network can exchange operational information –A Network support unit in GGUS (trouble ticket system of EGEE) SA2: Network activity in EGEE-III EGEE 08 Istanbul 8 Sites GGUS Users Support Units NRENs GÉANT2 EGEENetwork Sites NRENs ENOC Interface with network providers: –Collect tickets from NRENs –Assess impact on the grid infrastructure –Forward to GGUS tickets that seem relevant Interface with the EGEE user support: –Receive tickets assigned to ENOC by the GGUS 1 st level support –Troubleshoot them provided that the ENOC has access to suitable monitoring tools –Contact identified faulty domains or reassign ticket to the associated site if this is local network issue

9. Enabling Grids for E-sciencE EGEE-III INFSO-RI-222667 SA2: Network activity in EGEE-III EGEE 08 Istanbul 9 Assess the network connectivity of the Grid sites 282 Certified Grid Sites

10. Enabling Grids for E-sciencE EGEE-III INFSO-RI-222667 Support of LHCOPN SA2: Network activity in EGEE-III EGEE 08 Istanbul 10 http://ccenoc.in2p3.fr/ASPDrawer / The LHC Optical Private Network 15 PB of data per year generated by the LHC

11. Enabling Grids for E-sciencE EGEE-III INFSO-RI-222667 SA2: Network activity in EGEE-III EGEE 08 Istanbul 11 Support of LHCOPN SA2 objectives in LHCOPN context are: –Define the operational Model  Define accurately responsibilities of each actor  Ensure a problem resolution is not delayed by an unsuitable operational model  Ensure the LHCOPN is well monitored –Set up communication channels between this network and the EGEE Grid (scheduled downtimes, incidents etc.) LHCOPN operational model: –Federative Model, responsibility shared by Tiers 1 and Tier 0 –Approach: Define actors and their relationship, Where to find the information, The procedure  Each actor agrees on the operational model and is aware of its role and the procedure it should apply

12. Enabling Grids for E-sciencE EGEE-III INFSO-RI-222667 SA2: Network activity in EGEE-III EGEE 08 Istanbul 12 LHCOPN Operational model Warning: ongoing work

13. Enabling Grids for E-sciencE EGEE-III INFSO-RI-222667 SA2: Network activity in EGEE-III EGEE 08 Istanbul 13 LHCOPN Operational model Warning: ongoing work

14. Enabling Grids for E-sciencE EGEE-III INFSO-RI-222667 Trouble matching and correlation RRC-KI –Inaccurate mapping of problems location due to bad formalization of NREN’s ticket. –Inaccurate predictions of the problem severity. E.g. notifications with warning of possible QoS degradation are considered to be of service outage. –Network topology complexity confusing WHO will really “feel” the predicted problem. With the courtesy of Veniamin Konoplev

15. Enabling Grids for E-sciencE EGEE-III INFSO-RI-222667 Trouble matching and correlation RRC-KI Near future plans: Creation monitoring alert subsystem with problem severity reports. Creation topology/severity store prototypes for meta-ticket’s attributes mapping With the courtesy of Veniamin Konoplev

16. Enabling Grids for E-sciencE EGEE-III INFSO-RI-222667 SA2: Network activity in EGEE-III EGEE 08 Istanbul 16 Network Operational Database

17. Enabling Grids for E-sciencE EGEE-III INFSO-RI-222667 SA2: Network activity in EGEE-III EGEE 08 Istanbul 17 Tools for troubleshooting DFN Tools for efficient troubleshooting (university of Erlangen) –Launch test on demand from the Grid site under central server control: ping, traceroute, DNS lookup, nmap and bandwith measurements. ENOC Local site light PerfSONAR’s sensor Central ENOC server 1 Grid site B 3 2 4 5 ENOC supervisor Site administrator Grid site A

18. Enabling Grids for E-sciencE EGEE-III INFSO-RI-222667 SA2: Network activity in EGEE-III EGEE 08 Istanbul 18 Tools for troubleshooting DFN Active measure on demand, light weight PerfSONAR version with a specific plug-in Look for beta-tester sites NRENs can take advantage of the deployment of this software –To troubleshoot their own grid nodes

19. Enabling Grids for E-sciencE EGEE-III INFSO-RI-222667 SA2: Network activity in EGEE-III EGEE 08 Istanbul 19 Grid site networking needs RedIRIS Establish by an empirical way the site needs in term of network needs according to type of –Site (Tiers 0, 1, 2, 3) –Experiment computed in the site Working plan –Review of the status of Tier2 / Tier3 in Spain –Translate the requirements and needs to network parameters to be measured. –Brief review of different network performance and monitoring tools that tiers agree to deploy –Pilot / Service definition for deploying perfSONAR –Performance and monitoring tests definition –Tests phase, Results and conclusions.

20. Enabling Grids for E-sciencE EGEE-III INFSO-RI-222667 SA2: Network activity in EGEE-III EGEE 08 Istanbul Advanced network services GRNET Enable access for applications to the advanced services provided by the NRENs SLA automation in multi-domain environment through AMPS (Advance Multi-domain Provisioning ) –Overcome the lack of automated mechanisms SLA monitoring in EGEE –Automate the monitoring procedure and generate alarms. –perfSONAR Investigate the new advanced network services soon available –Dynamic lightpath? 20

21. Enabling Grids for E-sciencE EGEE-III INFSO-RI-222667 SA2: Network activity in EGEE-III EGEE 08 Istanbul 21 The Lesson learnt from EGEE Future European Grid Initiative network activity: Troubleshooting activity should be lowered at minimum (only big issues) Trouble ticket handling should be turned into a knowledge database and used as a part of the quality network monitoringlevel Network monitoring is an open subject in EGI-NGI The NGI/EGI will federate several grid projects and therefore handle more sites and more networks Interaction (process, trouble sharing) and integration (operation design, monitoring…) with the Grid are essentials at project Future possibilities offered from networks to the Grid should not be missed: Dynamic lightpath provisioning (Internet2, Phosphorus…), Ipv6 compliancePhosphorus Network quality control should be fostered (statistics, MoU checking, feedbacks to network providers…)

22. Enabling Grids for E-sciencE EGEE-III INFSO-RI-222667 SA2: Network activity in EGEE-III EGEE 08 Istanbul 22 Network activity in EGI/NGI Network activity key objectives in EGI/NGI Interface between the European Grid Infrastructure and networks providers Monitor the quality of networks used by Grid project: Public: Educational and research network. Private: Non educational network providers (commercial…) Dedicated: LHCOPN, LHC Optical Private Network… Ensure that application network requirements are fulfilled / monitoring Put new network technologies forward in the Grid process.

23. Enabling Grids for E-sciencE EGEE-III INFSO-RI-222667 SA2: Network activity in EGEE-III EGEE 08 Istanbul 23 Conclusion Foster IPv6 usage Support of LHCOPN Trouble ticket standardization –Standardization –Betters assessment of the impact on the Grid of a trouble ticket Tools for troubleshooting –Light weight PerfSONAR deployed on grid site Foster the advanced network services usage Establish a future collaboration between NRENs and NGI/EGI

24. Enabling Grids for E-sciencE EGEE-III INFSO-RI-222667 SA2: Network activity in EGEE-III EGEE 08 Istanbul 24 Thank you.