ARNES Joe Hanc Arnes, Ljubljana, Slovenija joze.hanc@arnes.si - PowerPoint PPT Presentation

TF-NOC flash presentation TF-NOC flash presentation ARNES Jože Hanc Arnes, Ljubljana, Slovenija joze.hanc@arnes.si TF-NOC meeting, Ljubljana 15. 2. 2011

Network Infrastructure - Backbone • Optical backbone • Optical backbone • leased dark fibre • 53 PoPs in 30 towns • L3 equipment (IPv4/IPv6) • Cisco • Juniper • Juniper • Optical transport • Optical transport • active DWDM: Adva • passive CWDM 2

Network Infrastructure - Backbone 3

Network Infrastructure - Access • 1300 customer’s LANs with L3 connections • 1300 customer’s LANs with L3 connections • Cisco routers • uplinks hired by customers • Technology • dark or lit fiber to PoPs • VPN over FTTH, xDSL and CATV, via service • VPN over FTTH, xDSL and CATV, via service provider’s networks to main PoP in Ljubljana provider’s networks to main PoP in Ljubljana 4

Network Services • L3 connectivity (IPv4, IPv6) • L3 connectivity (IPv4, IPv6) • QoS and IP SLA • IP filtering (Access Control Lists - ACL) • Point-to-Point circuits • L2 • L2 • MPLS pseudo wire • MPLS pseudo wire • EPL (Ethernet Private Line) • L1 • DWDM/CWDM lambdas 5

Management/Monitoring tools • Cacti – graphing • Cacti – graphing • Smokeping – active monitoring • Icinga – passive monitoring • Syslog – passive monitoring • Rancid – configuration repository • NDT, iperf – on-demand active monitoring • in-house scripts: • in-house scripts: • routing control • multiple equal path detection • default route monitoring • Observium – passive monitoring, in test phase 6

NOC structure • Three level NOC • Three level NOC • 1 st level – helpdesk • 2 nd level – network consultants • 3 rd level – backbone experts • non dedicated personnel • NOC hats are on when needed • NOC hats are on when needed 7

NOC structure - Backbone NOC • One expert available 24/7 • 3 rd level support mainly for backbone and • 3 rd level support mainly for backbone and big customers (Uni-LJ, Uni-MB, IJS, GOV) • Expertise: • intra and inter domain IP routing • switching • MPLS • MPLS • optical transmission systems • QoS • performance issues (PERT) 8

NOC structure – Access NOC • 1 st level NOC – helpdesk • 5 operators – weekdays 8:00 – 20:00 • 5 operators – weekdays 8:00 – 20:00 • 2 nd level NOC • 3 operators – weekdays 8:00 – 16:00 • Expertise: • intra-domain IP routing • switching • switching • IPsec VPN • access technologies • xDSL, cable, FTTH, wireless 9

NOC structure – Joint activities • PERT • PERT • Performance Enhancement and Response Team • Backbone and Access NOC involved in: • operational procedures • net-admin procedures • maintenance • provisioning • provisioning 10

NOC tools • All the monitoring tools tools • Vi • Big question: • tool integration • Goal: creating a common network information network information base and API for management and monitoring aplications 11

Front End – Users Number of connected customers – log scale Government departments 14 Public libraries , museums and other 189 cultural institutions Secondary, primary schools and 822 preschool education Research Institutes 53 Universities and high-schools 24 1 10 100 1000 • estimated 200.000 end users 12

Front End – SLAs and agreements • No SLA agreements • No SLA agreements • monitoring IP SLA parameters on some links • We are very much interested in what is the role of other NOCs between access providers and organizations in term of SLA providers and organizations in term of SLA 13

Front End – Communication • Communication: • Communication: • e-mail • phone • Keeping track: • Trouble Ticket – proprietary tool • OTRS • OTRS • Question: • Question: • skilled contact person on customer’s side? • education, workshops? 14

Inter-NOC Communication • Inside • Inside • OTRS, email, IM chat, phone • shouting to the nearest colleague ☺ • Outside • email, phone • email, phone • Inter-NOC • email, OTRS 15

Documentation – What, Tools • Network documentation • Network documentation • organization's data (address, contacts, equipment, network information) • equipment configuration files • access provider’s contact information • Tools: • Tools: • Proprietary information system (ARIS) • Wiki 16

Documentation – Best practice • Mostly checklists • Mostly checklists • some were done for transfer of activities to 1 st level support helpdesk • Bunch of documents, but not structured (yet!). • Short answer • Not enough • Difficult to keep up-to-date 17

NREN – NOC questions • How to integrate NOC into an NREN? • How to integrate NOC into an NREN? • Dilemma • designated operators for NOC or not? 18