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GANT IP and GEANT Plus Network Convergence Mian Usman, DANTE 13 th - - PowerPoint PPT Presentation
GANT IP and GEANT Plus Network Convergence Mian Usman, DANTE 13 th - - PowerPoint PPT Presentation
GANT IP and GEANT Plus Network Convergence Mian Usman, DANTE 13 th Feb TERENA Network Architect Workshop Prague connect communicate collaborate Network Convergence Pre-Procurement Architecture Post-Procurement/Deployment
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Pre-Procurement Architecture
Three main services on three different platforms GÉANT IP – Juniper T-Series GÉANT+ - Alcatel MCC GÉANT Lambda – Alcatel LM 1626
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Pre-Procurement Topology
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Post-Procurement Architecture
Three services on three different platforms GÉANT IP – Juniper T-Series and MX GÉANT+ - Juniper MX GÉANT Lambda – Infinera DTNx
Switching IP/MPLS DWDM Fibre Leased Circuits IP
FR ES IT AT CZ SK SI IE CH UK BE NL DK DE HR HU LV LT BG EE GR PL PT RO LU RU CY RS MT MK TR IL ME
Fully Featured PoPs IP/Switching Only NREN PoPs
Leased Circuits
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Originally two separate networks GÉANT IP network
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Originally two separate networks GÉANTPlus network
CZ DK UK HU CH GR2 PL IT DE
GÉANT Plus Topology
8/11/2012 AK
AT NL
20 GE 30 GE 40 GE 10 GE
FR ES IE
Rt1.lon.uk Rt1.mad.es Rt1.fra.de Rt1.vie.at Rt1.bud.hu Rt1.poz.pl Mx1.dub.ie Rt1.ams.nl 100 ISIS cost
Only GÉANTPlus MX are shown.
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Convergence Motivation
Enable NRENs to connect at 100GE for GEANT IP access Provide multiple services on a single interface as VLANs Utilise the 100GE trunks between Juniper MXes for IP traffic Avoid upgrading GEANT IP backbone
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Convergence Goals
Merging of the existing GÉANT IP (T series) and GÉANTPlus (MX) platforms All the devices exist in a common IGP (IS-IS) All the devices are in same Autonomous System All services available everywhere
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Convergence Challenges/Principles
Initially keep the GÉANTPlus and GÉANT IP traffic on dedicated trunks Start using the 100GE trunks for production GÉANT IP and GÉANTPlus traffic as soon as possible Keep both backbone networks operational during the convergence process Minimize or preferably eliminate any site outages Converge both IPv4/IPv6 and avoid partitioning either network or blackholing any traffic Avoid buying any extra hardware for Juniper T-series for convergence purposes
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Post Convergence Architecture
DWDM Fibre Leased Circuits IP & Switching
FR ES IT AT CZ SK SI IE CH UK BE NL DK DE HR HU LV LT BG EE GR PL PT RO LU RU CY RS MT MK TR IL ME
Fully Featured PoPs IP/Switching Only NREN PoPs
L e a s e d C i r c u i t s
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Post Convergence Topology
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Convergence Advantages
Easier to maintain and manage the network Same monitoring and provisioning tools Easier approach to migrate or upgrade NREN IP connection on MX Can support both IP and GEANT+ connection on either platform No upgrade of GEANT IP backbone required, no need to buy expensive T-Series hardware
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Convergence Status
Majority of the connections migrated from T-Series to MX in all PoPs Nine out of 15 T-Series switched off, three M series switched off Four PoPs AT, CH, DE and NL running both boxes
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Working draft
POP with secondary access point (e.g. Milan) 1 MX deployed and backup via transport to adjacent POP POP on fiber cloud without SAP 1 MX deployed and backup via transport to adjacent POP POP off fiber cloud 2 MX deployed for primary and backup connections Large POPs with international connectivity 1 MX and 1 T-series
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