introductie! surfnet overview - os3 · pdf file(bram)-9:40 surfnet ... enable network as...
TRANSCRIPT
Agenda
- 9:30 Welkom! (Bram)
- 9:40 SURFnet – lichtpaden en meer (Bram)
- 10:20 Optische Netwerken (Roeland)
- 11:00 BREAK (maar een korte) (jullie)
- 11:10 Operations in SURFnet (Stavroula)
- 11:40 BGP in de praktijk (Jac):
- 12:20 klaar, broodjes (opnieuw jullie)
Introducing SURFnet
- Dutch National Research & Education Network (NREN)
- Not for profit organization, 75 employees
- 180 connected institutions, 750.000 end-users
- Business-model:
- Innovation by project subsidies- Operations by tariffs from institutions
SURFnet networkcapacity evolution
- Every generation a new network technology or architecture- Bandwidth as driver- Moving towards simpler architectures (KIS)…
Not just the bandwidth!Innovations: Paradigm shifts
SURFnet4 project GigaPort
DWDM
Lambdas
POS
1995
GigaPortNext Generation
20031999
SURFnet4 network
SURFnet5 network
ATM
2008
SURFnet6 network
Next generation is not a simple extrapolation of current networks
SURFnet6: the big idea
- A: End users: web, e-mail
- B: Institutions: applications, VPNs, shared service center
- C: Researchers: computing, data grids, virtual-presence
Required capacity per user category:
BW requirements
#users
CB
ADSL GigE
ΣA ≈ 20 Gb/s
ΣB ≈ 40 Gb/s ΣC ≈ 100 Gb/sA
Do these need an IP network?
Do we want to build an IP network for them?
This slide courtesy of Cees de Laat
SURFnet6 highlights
- World’s first nationwide “hybrid” network, truly collapsed IP backbone (routers at 2 locations only)
- Based on 8000+ km of SURFnet-owned managed dark fiber,
- IPv4 and IPv6, unicast and multicast, plus lightpath provisioning, over a single transmission infrastructure
Services on SURFnet6
SURFnet6
IP routedservices
Lightpathservices
dynamicIPv4 IPv6 static
singlelightpath
unicast multicast unicast multicast OPN
10
Not just networks -Services Portfolio
Overview:
-Network infrastructure-Security-Authentication & authorization-Group communication-Content delivery-Help and monitoring
This menu provides an overview of the SURFnet services
SURFnet – lichtpaden en meerOS3/SNE 19 maart 2009Bram Peeters ([email protected])
SURFnet6: the big idea
- A: End users: web, e-mail
- B: Institutions: applications, VPNs, shared service center
- C: Researchers: computing, data grids, virtual-presence
Required capacity per user category:
BW requirements
#users
CB
ADSL GigE
ΣA ≈ 20 Gb/s
ΣB ≈ 40 Gb/s ΣC ≈ 100 Gb/sA
Do these need an IP network?
Do we want to build an IP network for them?
This slide courtesy of Cees de Laat
SURFnet6 approach
- Acquire fiber: SURFnet6 is based on 8000+ kilometres of fiber pairs
- Create the world’s first hybrid optical and packetswitched network
- Upgrade the ‘standard’ IP connections to 1/10 Gbit/s
- Introduce direct, fast, secure connectionsbetween connected institutions (bypass the costly routers)
LIGHTPATHS!!!
Lightpaths
Light paths - whatPoint-to-Point (L1) connection ‘Virtual’ lambda!Edge port is mostly gigabit Ethernet (GE), will move to 10 GEAny effective rate (< 1G or 10G) possible
Light paths – why
Enable creation of Optical Private Networks (OPN)
Divert high-bandwidth pt-to-pt streams from routed coreStorage, other applications
Enable network as integral part of scientific instruments
SURFnet A network for lightpaths
AMS1 AMS2
SURFnet6Common Photonic Layer
CustomerequipmentCustomer
equipment
Norteltransport
box
End user
End user
EuropeanLight Paths
Norteltransport
box
Norteltransport
box
Norteltransport
box
Non-SURFnetSURFnet infrastructure
IntercontinentalLight Paths
NortelHDXc
GLORIAD
..
End-to-End Light Path
Lightpaths: Current implementation
- Standard LAN interface (GE, 10GE)
- Uses the qualities of the transport network to achieve- Performance: capacity, availability- Security: OSI L1- Flexibility: locations, topologies- Simplicity: ‘transparent’, predictable/fixed latency- Costs of usage
GE GE
Into the detail: Hybrid Optical/Packet Networks –from a GE to wavelengths
IP
Ethernet HDLC
10 G LAN PHY 10 G WAN PHY 1 G PHY
SDH (G.707)
Optical Fibre
GFP (G.7041)
packet
optical
Courtesy of John Graham
Time Division Multiplexing –how to guarantee BW
E
D
C
B
A
E
D
C
B
A8 5 4 3 1
A Z:1 E Z:1
Z Z
7 6 2MUX / DEMUX
MUX / DEMUX
STM-64: 10 Gbit/s – 64 x 150 Mbit/s
STM-16: 2.5 Gbit/s – 16 x 150 Mbits/sCourtesy of John Graham
Making Lightpaths reliable
Model 1: SingleOMEOMEGE
GE
Model 2: “path protected”
GEGE
OMEOMEworking
protecting
More models
Model 3: redundant – not protected
GEOMEOME
GEworking
GE GEworking
Model 4: let’s have it even more reliable
GE GEOMEOME working 1
working 2
GE GEprotecting 2
protecting 1
Making networks with lightpaths?
- Designing a network to work with lightpaths demands some attention
- Simple solution: direct point to point between two ‘boxes’ --> not really a network…
- Complex solution: real L2 network???
- Routed solution, but a single admin domain
Wanneer welk model (welk OPN)?1. Klein aantal sites
GEGE
- ‘Protected’ lichtpaden- Klein aantal sites wordt met elkaar verbonden- Een LAN over grote afstand- Full mesh
inefficient gebruik backbone, geen aggregatie capaciteitEen poort per andere site -- N x (N-1) totaal aantal poorten
- Consolidatie infrastructuur mogelijk, maar niet noodzakelijk eerste doel- Erg eenvoudig design (‘plug and play’)- Resiliency verbindingen volledig in netwerk
Wanneer welk model (welk OPN)?2. Groot aantal sites
Aggregatie site 1 Aggregatie site 2
. . .
- Redundant => 2 x enkelvoudige lichtpaden!- Groot aantal sites wordt met hubs verbonden => 4N poorten- Efficienter gebruik backbone, minder poorten voor groot aantal sites- Aggregatie capaciteit- Consolidatie infrastructuur mogelijk- Data centers kunnen met grotere capaciteit ontsloten worden- Resiliency verbindingen volledig in klant apparatuur- Netwerk falen leidt tot uitval verbinding
Nieuwe situatie
Artez OPN
ZwolleStadsmuur
ZwolleSophia
ArnhemOnderlangs
EnschedeAKI
ArnhemOude Kraan
SURFnet LP 1GbSURFnet LP 1Gb
Firewall to Internet - uplink 1 Gb/s
ManagedDark fiber Managed
Dark fiber
internet
OU Nijmegen
GE
GEOURouter1
OUSwitch2
PP8600
OUSwitch1
GE
Main SiteHeerlen1
OM5100Heerlen1
Main SiteMaastricht1
Mt001A_O5M01
Mt001A_OME01
SURFnet6 IPMt001A_E8K012*GE
(1+1)
2*GE2*GE
2*GE(1+1)
Nijmegen1
Nm001A_OME01
Eindhoven1
Ehv001A_OME01
10G DWDM10G DWDM
PP8600
Asd002A_OME02
Asd001A_OME02 Asd001A_
OME07
Asd001A_OME06
Asd001A_OME05
Asd001A_OME04
Asd001A_OME03
Asd002A_OME07
Asd002A_OME06
Asd002A_OME05
Asd002A_OME04
Asd002A_OME03
10G DWDM
Ah001A_OME01
Zwolle1
Zl001A_OME01
10G DWDM
2*GE
10G DWDM
OU Zwolle
2*GE
OU Eindhoven
2*GE
DenHaag1
Gv001A_OME01
OU Den Haag
2*GE
10G DWDM
10G DWDM
Utrecht1
Ut001A_OME01
OU Utrecht
2*GE
Ed001A_OME01
Wg001A_OME01
2.5G 2.5G
10G DWDM
Ap001A_OME01
Groningen1
Gn001A_OME01
OU Groningen
2*GE
10G DWDM
Enschede1
Gn001A_OME01
OU Enschede
2*GE
10G DWDM
10G DWDM
10G DWDM
Emmen1
Emn001A_OME01
OU Emmen
2*GE
OU Maastricht
2*GE
OU Amsterdam1*GE
1*GE
Alkmaar1
Amr001A_OME01
OU Alkmaar
2*GE
2.5G
10G
Rotterdam1
Rt001A_OME01
OU Rotterdam
2*GE
10G DWDM
10G DWDM
10G DWDM
Breda1
Bd001A_OME01
OU Breda2*GE
Ddr001A_OME01
10G DWDMHt001A_OME01
10G DWDM
10G DWDM
10G DWDM
Vlissingen1
Vss001A_OME0110G
10G
OU Vlissingen
2*GE
Note Amsterdam OU dual-homed to Amsterdam1 & 2
via centerstage
Voorbeeld OPN type 2: OU OPN
Niet alleen instellingen –ook projecten
University dept
HealthcareOPN
Institute OpticalPrivate Network
CERN
University University
High EnergyPhysics Network
eVLBINetwork
Research Network
Telescopesite
The (near!) future, part 1: Next Gen Ethernet
- Currently lightpaths are GE / 10 GE terminated, butimplemented using TDM
- Hybrid means two different bits of equipment to createservices…
- Convergence would be nice
- SURFnet7 currently being investigated- Next Gen Ethernet?- PBT? MPLS? MPLS-TP? Anything Else?
The already-there future: Dynamic Lightpaths
Admin
1 GE
Customerequipment
DRAC
SURFnet, grensverleggend netwerk voor hoger onderwijs en onderzoek36
Non-SURFnetSURFnet infrastructure
“USI” – User toService Interface (Web GUI, API)
publicprivate
Control planeControl plane
CPE
CPE
User A
Resource B
NortelOME6500
NortelOME6500
Resource C
CPENortelOME6500
NortelOME6500
NortelOME6500