Sofia Sima 2 ext new

Information about Sofia Sima 2 ext new

Published on June 18, 2007

Author: CoolDude26

Source: authorstream.com

Content

CEF network design (including cross-border fibre issues) :  CEF network design (including cross-border fibre issues) Stanislav Šíma CESNET Network construction and parts(what is really our task):  Network construction and parts (what is really our task) Collins COBUILD English Dictionary for Advanced Learners: „If you construct something such as an idea, piece of writing or system, you create it by putting different parts together.' For network construction we need to elaborate specifications of: Network services Network building parts (elements) Implementation of services by connecting elements Elaboration of above specifications is called network design Network design is semantically similar to computer design or electronic circuit design, but big difference makes complexity and cost of some building parts: Building elements, implementation and operation of large scale networks are procured Procurement is long process (especially if public funding is used): e.g. 7-24 month (but legal system in some countries is not so restrictive to research) Returns and corrections of decisions could be very difficult or impossible in such procurement process (details depend on procurement regulations in given country) Result of one-way design proces is not optimal (in general case)…. Legacy procedure of REN design(ISP for R&E community):  Legacy procedure of REN design (ISP for Randamp;E community) Decide about REN PoPs needed and then: Procure SDH or lambda services Procure „ISP-like' equipment Procure network operation and maintenance The first goal is service for researchers (research in networking is secondary) Main Advantages: Relatively simple design and operation (we use large and matured building elements and services, with guarantee) Transparency for donators and users (element selection is the best in the current commercial sense) Main Weakness and Risk: The „best in current commercial sense' is not the best generally (monopoly or dominant position of some vendors prevents it) Construction simplicity and network reliability received are very expensive, i.e. network is based on outdated technology, adaptation to user needs is far from perfect, both CAPEX and OPEX are high Vendors prevent some improvements of network after installation (to safe their exclusive delivery position) New possibilities in REN design:  New possibilities in REN design Main source of innovation is optical technology Fibres and fibre lighting devices Free Space Optics (up to 2.5 Gb/s per line) with microwave backup Change of P2P services by P2P fibres is first step only New types of transmitters, receivers, amplifiers, gratings etc. are available, some of them even with MultiSource Agreements New network services are enabled, for example E2E lightpath on demand, fibre switching, facilities based networking … New architecture for cost-effectivness: Overcome distances by light only (see CESNET2 and GEANT2 core) OEO conversion and switches should be rare (use OADM and OXC) Few routers (2-4) per NREN are sufficient (see Surfnet6 and Canet4) CEF Network approachto REN design:  CEF Network approach to REN design Decide about REN PoPs needed and then: Procure Dark fibres including optical first mile Procure Open (multi-vendor) network equipment Procure Network Integrator (if external support for design, deployment and operation is needed) The goal is still service for researchers, but role of research in design is stronger CEF Network approach is field proved: procurement of dark fibres instead services: proved by many NRENs, RONs, National LambdaRail, partially GEANT2 procurement of open (multi-vendor) equipment: proved by SWITCH (including external design support), CzechLight (including CESNET-made Optical Amplifiers), partially CESNET2 Many metropolitan CEF RENs has experience with network integration by own staff Save own improvement freedom and independency on vendors Save own ability to quick return and correct design (including re-tendering etc.) Convince vendors in word and deed, that their task is changed you need dedicated fibre instead of pacifier  you will decide on devices suitable for network development, etc. Main strategies for SEE NRENs development:  Main strategies for SEE NRENs development Short characteristics of main possibilities for SEE NRENs: „Safe way': Step-wise repeat NREN development seen in other countries (it is slow, quite expensive and preserves gap) „Brute force way': Use big investment to make „the second instance' of some leading NREN (this approach is limited mainly by missing first mile fibres and by unsufficient funds) „Innovation way': Strong use of research results to solve NREN design problem. Search for cost-effective technology successively deployed in testbeds and tested in NRENs (or prepared for future NRENs) Possible Government Support for R&E:  Possible Government Support for Randamp;E Remove telecommunication regulations for research and education Simplify tendering regulations for research and education Establish fibre lines for research and education as infrastructure donated by state (such as roads) Support municipalities deploying first mile fibres for research and education It helps to national Randamp;E and to national development. It helps to EU development too (by better connecting of SEE research capacity) GEANT2 design characteristics:  GEANT2 design characteristics GEANT2 is hybrid network: Lambda services (Layer2 OEO services) is offered to participants besides IP service (Layer3 services) Small changes in network topology, local movings of GEANT PoPs requested by nRENs Mixed procurement of services and dark fibres Extensive comparisons of dark fibres to services costs, despite that reasons for dark fibres are strategic rather than financial, and result of comparison strongly depends on question: How many lambdas will users need in next years??? GEANT2 is CEF network in the sense, that core is on leased dark fibres and lighting equipment is owned by DANTE Separated procurement of transmission system and switching equipment: one vendor selected for both (no CEF-like open result) Our example presented on TNC 2004 Rhodes:  Our example presented on TNC 2004 Rhodes Initial GEANT2 topology(dark fibre core footprint):  Initial GEANT2 topology (dark fibre core footprint) GEANT2 and SEE countries:  GEANT2 and SEE countries GEANT2 will be one of world-leading continent-wide Randamp;E network using dark fibres (another one will be National LambdaRail after merging with Abilene2 in USA) Further work is strongly needed, for example: GN2 procurement of dark fibres failed for connection of some countries, despite that dark fibres where available (good offer was missing), for example to Ireland, Portugal, Poland, Estonia, Latvia, Lithuania: re-tendering in GN2 is possible Transmission and switching equipment are from single-vendor: multi-vendor interoperability problems must be solved on demarcation line GEANT2-NRENs Important and feasible tasks: acquire international dark fibres to GN2 countries Romania, Bulgaria and Greece prepare international dark fibres to remaining SEEFIRE countries International dark fibre acquiring and using:  International dark fibre acquiring and using Cross border fibre (CBF) issue GCBF are GEANT2 cross border fibres, connecting GEANT2 PoPs RCBF are Regional corss border fibres, connecting neighbours NRENs In principle, by means NRENs fibres and RCBF is possible to implement European-wide lambdas and GCBF looks redundant Situation is of course much more complicated: GCBF could be sometimes less expensive (imagine quantity discounts) Lambdas implemented on GCBF should be more reliable GCBF could be used for lambdas inside country (using OADMs etc.) In general, CBF procurement results achieved by NRENs and by DANTE are (and will be) different GN2 support for RCBF prepared Cross border fibre issues (lines are examples only):  Cross border fibre issues (lines are examples only) CBF connection needed:  CBF connection needed For GN2 members to Bucharest Sofiya Athena For GN2 observers to Beograde Skopje For GN2 non-members to Tirana Sarajevo We should agree in SEEFIRE now about required steps, including suggestion to GN2 Acknowledgement:  Acknowledgement Lada Altmannova for topology maps CzechLight team members for collaboration

Related presentations


Other presentations created by CoolDude26

CH8 PowerPoint Robotics
31. 12. 2007
0 views

CH8 PowerPoint Robotics

challenging behavior
17. 09. 2007
0 views

challenging behavior

ch1
17. 09. 2007
0 views

ch1

IP P mohan
19. 09. 2007
0 views

IP P mohan

RMP October 2006 Data
11. 10. 2007
0 views

RMP October 2006 Data

standing2
12. 10. 2007
0 views

standing2

lam talk
15. 10. 2007
0 views

lam talk

Escher
15. 10. 2007
0 views

Escher

2006 Radicarbon History
16. 10. 2007
0 views

2006 Radicarbon History

pre b373
17. 10. 2007
0 views

pre b373

banderas2
22. 10. 2007
0 views

banderas2

ostrichsm
17. 09. 2007
0 views

ostrichsm

209 OASIS Ostrich presentation
17. 09. 2007
0 views

209 OASIS Ostrich presentation

ssec software development
07. 10. 2007
0 views

ssec software development

dianxinyezhuanxing
12. 10. 2007
0 views

dianxinyezhuanxing

africa presentation
23. 10. 2007
0 views

africa presentation

spatial databases
23. 10. 2007
0 views

spatial databases

vollhardt lecc2005
17. 10. 2007
0 views

vollhardt lecc2005

232nm13
29. 10. 2007
0 views

232nm13

ans321L2
17. 09. 2007
0 views

ans321L2

Plan Bleu partie2
24. 10. 2007
0 views

Plan Bleu partie2

05 galaxies
29. 08. 2007
0 views

05 galaxies

nuclearWeapons
23. 12. 2007
0 views

nuclearWeapons

ChristensenNov2
29. 08. 2007
0 views

ChristensenNov2

Unit3
03. 01. 2008
0 views

Unit3

como fazer palestra espirita
07. 01. 2008
0 views

como fazer palestra espirita

XES Architecture Vacuum v2
17. 09. 2007
0 views

XES Architecture Vacuum v2

2 tinyos
29. 10. 2007
0 views

2 tinyos

Lecture16 overheads
21. 08. 2007
0 views

Lecture16 overheads

Hip Injuries in Athletics PartI
01. 08. 2007
0 views

Hip Injuries in Athletics PartI

jsimon irvine
29. 08. 2007
0 views

jsimon irvine

GeorgeMiley LOFAR May06
29. 08. 2007
0 views

GeorgeMiley LOFAR May06

jim brady
05. 10. 2007
0 views

jim brady

automotive invitation
24. 10. 2007
0 views

automotive invitation

microscopy
15. 10. 2007
0 views

microscopy

General Psychopathology
16. 02. 2008
0 views

General Psychopathology

The Virus of Violence
20. 02. 2008
0 views

The Virus of Violence

cindy pragma grid
17. 10. 2007
0 views

cindy pragma grid

ASOCallPresentation2 006WBSD
18. 03. 2008
0 views

ASOCallPresentation2 006WBSD

China Korea Trip Info
25. 03. 2008
0 views

China Korea Trip Info

A105 021 GalI
29. 08. 2007
0 views

A105 021 GalI

widefield yan
29. 08. 2007
0 views

widefield yan

blain cosmoskyoto
29. 08. 2007
0 views

blain cosmoskyoto

Corporate Profile November 2007
27. 03. 2008
0 views

Corporate Profile November 2007

Cal Mrtg Watkins
10. 04. 2008
0 views

Cal Mrtg Watkins

pcreek
13. 04. 2008
0 views

pcreek

7 9 kraft
29. 08. 2007
0 views

7 9 kraft

neos innovation challenge short
14. 04. 2008
0 views

neos innovation challenge short

nslab diffserv 06a
16. 04. 2008
0 views

nslab diffserv 06a

podraza medicare
17. 04. 2008
0 views

podraza medicare

Capitalizing
18. 04. 2008
0 views

Capitalizing

Meyer
22. 04. 2008
0 views

Meyer

forbes manhattan presentation
28. 04. 2008
0 views

forbes manhattan presentation

cs4811 ch09 uncertainty
17. 09. 2007
0 views

cs4811 ch09 uncertainty

Managing Tough Decisions
17. 09. 2007
0 views

Managing Tough Decisions

David Ellis powerpoint
30. 04. 2008
0 views

David Ellis powerpoint

Anesthetic Machines
02. 05. 2008
0 views

Anesthetic Machines

ADSL NTT
09. 10. 2007
0 views

ADSL NTT

ABM12006
15. 10. 2007
0 views

ABM12006

Richstone Mitchell
29. 08. 2007
0 views

Richstone Mitchell

CIP TOA and Beyond 5 29 07
03. 01. 2008
0 views

CIP TOA and Beyond 5 29 07

Thomson top panic05
18. 06. 2007
0 views

Thomson top panic05

Thesis defense rev12
18. 06. 2007
0 views

Thesis defense rev12

tftge dec 02
18. 06. 2007
0 views

tftge dec 02

Temp bone trauma slides 051012
18. 06. 2007
0 views

Temp bone trauma slides 051012

tamara
18. 06. 2007
0 views

tamara

tactical euro condor06
18. 06. 2007
0 views

tactical euro condor06

Stolarz D 1603
18. 06. 2007
0 views

Stolarz D 1603

stoc04
18. 06. 2007
0 views

stoc04

stabicp slides
18. 06. 2007
0 views

stabicp slides

slacbaryo genesis
18. 06. 2007
0 views

slacbaryo genesis

iyef project homeless connect
31. 10. 2007
0 views

iyef project homeless connect

SOFG
18. 06. 2007
0 views

SOFG

NorthStar
13. 11. 2007
0 views

NorthStar

rickwilliams
21. 08. 2007
0 views

rickwilliams

Noah s Ark
03. 10. 2007
0 views

Noah s Ark

ambertech
19. 11. 2007
0 views

ambertech

Soc RespI SOC02
17. 09. 2007
0 views

Soc RespI SOC02

Internet Protocol Addresses
15. 06. 2007
0 views

Internet Protocol Addresses

Colour Reconnection
15. 06. 2007
0 views

Colour Reconnection

Research & Development
15. 06. 2007
0 views

Research & Development

Low Frequency Gravitational Wave
15. 06. 2007
0 views

Low Frequency Gravitational Wave

vander Marel mgct2 win
29. 08. 2007
0 views

vander Marel mgct2 win

G020514 00
17. 09. 2007
0 views

G020514 00

aas calzetti
29. 08. 2007
0 views

aas calzetti

jokes riddles
17. 09. 2007
0 views

jokes riddles

vaulttutorial
19. 09. 2007
0 views

vaulttutorial

Ch90 ExtensionsToFOPC
17. 09. 2007
0 views

Ch90 ExtensionsToFOPC

Mercurio
29. 08. 2007
0 views

Mercurio

Eric Gawiser pire galclust
29. 08. 2007
0 views

Eric Gawiser pire galclust

Eric Gawiser pire galform
29. 08. 2007
0 views

Eric Gawiser pire galform

1 Dirk Van Braeckel
23. 10. 2007
0 views

1 Dirk Van Braeckel

directors roundtable 0407
02. 10. 2007
0 views

directors roundtable 0407

MWR
01. 08. 2007
0 views

MWR

01 Singleton
17. 09. 2007
0 views

01 Singleton

astro101 2000oct
15. 11. 2007
0 views

astro101 2000oct

CCAT06 Chapman
29. 08. 2007
0 views

CCAT06 Chapman

nips06 tutorial
17. 09. 2007
0 views

nips06 tutorial

90convexpo Jeff Tobe ppt
17. 09. 2007
0 views

90convexpo Jeff Tobe ppt