gÉant ip and geant plus network convergence · 2013-11-19 · gÉant ip and geant plus network...

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GÉANT IP and GEANT Plus Network

Convergence

Mian Usman, DANTE

13th Feb – TERENA Network Architect Workshop

Prague


2

Network Convergence

Pre-Procurement Architecture

Post-Procurement/Deployment Architecture

Convergence Motivation & Goals

Convergence Advantages & Challenges

Post Convergence Architecture


3

Pre-Procurement Architecture

Three main services on three different platforms

GÉANT IP – Juniper T-Series

GÉANT+ - Alcatel MCC

GÉANT Lambda – Alcatel LM 1626


4

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

SwitchingIP/MPLS

DWDM

Fibre Leased Circuits

IP

FR ES IT AT CZ SK SI

IE CHUK BE NL DK DE

HR HU

LV LT BG

EEGR PL PT

RO

LU RU

CY RS MT

MKTR IL ME

Fully Featured PoPs IP/Switching Only NREN PoPs

Lease

d

Circuits


6

Originally two separate networks

GÉANT IP network


7

Originally two separate networks

GÉANTPlus network

CZ

DKUK

HUCH

GR2

PL

IT

DE

GÉANT Plus Topology8/11/2012 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 CHUK BE NL DK DE

HR HU

LV LT BG

EEGR PL PT

RO

LU RU

CY RS MT

MKTR IL ME

Fully Featured PoPs IP/Switching Only NREN PoPs

Lease

d

Circuits


12

Post Convergence Topology


13

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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Questions?

Questions?

gÉant ip and geant plus network convergence · 2013-11-19 · gÉant ip and geant plus network...

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