VIOLA Network Devices Installed and Put into Operation

Ursula Eisenbltter, Ferdinand Hommes, Fraunhofer Institute for Media Communication

During the last months the network components were installed and connected via dark fiber.The corresponding management systems were installed and put into operation. Since the endof the last year users are able to test their applications on the VIOLA testbed.

UniBnU5

Uni BonnU1

caesarB.OG1

Uni BonnN220

FZJ16.3-001

RWTHWendl.weg

AachenAccom

AachenHeizwerk

SWBWelschn.

SWBChlodw.

FhG-IMKB3-207FhG-SCAIC3-T6

GasLINEPorz

ISAR Tiefgarage

GANTFrankfurt

GasLINENaurod

GasLINEDernbach

Uni BonnU3

Uni BonnU2

caesarA.OG1

caesarB.UG2

UniErlangen

TSICologne

TSINuremberg

FHA136

Hangelartram stop

AachenWaldschenke

GasLINE

SWB

RWTH

FhG FhG FH

FZJ

Uni Bonn

caesar

TSI

TSI

cable splice

Jlich, HausKnigskamp

FhGC5-T19

street near FhG

FhGC3-T35Legend :

FhGSWBUniversity of BonncaesarGasLINEFZJRWTH AachenFH BRSTSI

fiber leased from

Figure 1: Overview of the single-mode optical fiber cabling

Besides the private optical fiber cables of the participating research facilities, optical fibercables from the commercial vendors GasLINE, Stadtwerke Bonn (SWB) and the GermanTelekom (TSI) are being used. Usually only maintenance costs apply for the optical fibercables because the vendors do not charge any usage fees in favor of the VIOLA project. Inthis context GasLINE has been very obliging and has therefore become an associated partnerof the VIOLA consortium.In order to cut expenses on the optical fiber cabling the WDM technique is used on someroutes. Between Bonn and Sankt Augustin two ADVA FSP 3000 systems are being usedwhich have been delivered, installed and taken into operation by the consortial memberSiemens. Between Sankt Augustin and Jlich two Alcatel 1696 Metro Spans are being used.On the routes which are leased by TSI, WDM technique is being used too, but thewavelengths are used by different customers.The national and international connection to the VIOLA network takes place in Frankfurt. Onbehalf of cost savings, this route and the route between Jlich and Aachen are realized with acapacity of 2.5 Gbps. ADVA FSP 1500 systems are being used, which allow transmitting 2 xGigabit Ethernet over 2.5 Gbps SDH. All other connections are 10 Gigabit Ethernet or 10Gbps SDH.

Porz6 x MM

8 x MM

18 x MM

3 x MM

57 km

7,8 km

12 x MM

536 m

10 x MM

2 x MM

Uni Bonn

4 x MM

temporary locations

Alcatel 1696

ADVA FSP 3000

ADVA FSP 3000

SDH Alcatel

1678

20 x GE

14,6 km

optical amplifier

27,2 km

116,2 km

SDHSiemenshiT 7070

SDHSiemenshiT 7070

8 x GE

8 x GE

10 x MM

8 x MM

10 x MM

2 x MM

10 x MM

8 x MM

1 x MM2 x GE

2 x MM

ADVA FSP1500

2 x GE

ADVA FSP1500

2 x GE

Naurod

Dern-bach

ca. 200 km

ADVA FSP1500

ADVA FSP1500

12 x TP

2 x MM 2 x MM

10GE Riverstone

15008

12 x GE

15 x MM

1 x MM

Alcatel 1696

10GE Riverstone

1500824 x GE

ADVA FSP1500

FhG SCAI

24 x GE

10GE Riverstone

15008

IMK

SCAI10GE Riverstone

1500824 x GE

2 x MM22 x TP

10 Gbps SDH 10 GEn x 10 Gbps (WDM)

10 Gbps coloured

Legend :

backbone node and user node

user node

other node

17 km

4 x MM44 x TP

48 x GE

10GE Riverstone

15008

10GE Riverstone

1500824 x GE

RWTH Aachen 2 x

SM

3 km

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ADVA FSP1500

10 Gbit /s SDH

ca. 400 km

16 km

Cologne

8 x MMSDH

SiemenshiT 7070

8 x GE 1 x 2,5Gbit/s

SDH Sycamore SN 16000

24 km

DWDM

DWDM

TSI Nuremberg

Uni Erlangen

FZJlich

GANTFrankfurt

ADVA FSP1500

2 x GE

2 x MM

ADVA FSP1500

FhG IMKSankt Augustin

caesarBonn

FH Bonn-Rhine-Sieg

2,5 Gbps SDH

SDH Alcatel

1678

16 x GE

Alcatel 7750 SR10 x GE

SDH Alcatel

167812 x GE

Alcatel 7750 SR

10 x GE

Alcatel 7750 SR

10 x GE

1 GE (with number and type of interface - TP, MM and/or SM)

Figure 2: VIOLA network technology

During the VIOLA project different transmission techniques will be implemented and testedto provide different services for the users. The parallel deployment of SDH Cross-Connectsand 10 Gigabit Ethernet switches in the backbone allows the testing of the currently mostadvanced methods for the setup of VPNs on the one hand and dynamical bandwidth requeststhrough signalization on the other hand:

Setup of Layer 2 VPNs via VPLS and H-VPLS on the 10 GE transport switches ofAlcatel and Riverstone

Setup of Layer 3 VPNs via virtual routers on the Alcatel switch routers Signalization of dynamic bandwidths via different protocols (e.g. GMPLS, UNI, I-

NNI, E-NNI) on the SDH Cross-Connects of Alcatel, Sycamore and Siemens Provision of Ethernet services over SDH via GFP and LCAS with bandwidths

matching the requirements of the applications.

Figure 2 shows the connections between the installed network components inside and outsidethe backbone nodes and user nodes. As the network components at one backbone node aremounted into different racks and equipped with heterogeneous connector types the physicalports of all devices were attached to patch panels using the same connector. This makes itpossible to change the optical fiber connections between the devices by simply rearrangingthe cables attached to the patch panel. After a rearranging often a complex reconfiguration ofthe involved devices might become necessary.DFN has assigned to VIOLA a public IP address space for the clusters and workstations. Thisallows a direct connection to the G-WiN and the European backbone GANT and, later on,

GANT2. The VIOLA partners may use this connection for cooperations with other nationaland international research institutions without having to use their own G-WiN connectionwhich is normally overloaded and has a much lower bandwidth capacity.

Since the end of the last year, users can use the VIOLA testbed for their applications. In a firstconfiguration the Riverstone systems are deployed as Layer 2 switches and L2 switches/L3routers. (see Figure 3).

FhGIMK

FhGSCAI

FHBRS

VLAN 44 (Application)Port: Gi1/0/6 Gi1/0/7

VLAN 253 (VPLS)Port: Gi1/0/8 Gi1/0/11

VLAN 73 (Cluster)Port: Gi0/0/0 Gi3/0/3

VLAN 74 (Application)Port: Gi3/0/4 Gi3/0/11

L2 caesar

Trunk (VLAN 73 + 74)LOADSHARING

VLAN 33 (Cluster)Port: Gi0/0/0 Gi1/0/7

VLAN 344 (Application)Port: Gi1/0/8 Gi1/0/11

VLAN 63 (Cluster)Port: Gi0/0/0 Gi0/0/9

VLAN 54 (Application)Port: Gi1/0/6 Gi1/0/9

VLAN 253 (VPLS)Port: Gi1/0/10 Gi1/0/11

VLAN 53 (Cluster)Port: Gi0/0/9 Gi1/0/5

VLAN 34 (Application)Port: Gi1/0/2 Gi1/0/5

VLAN 253 (VPLS)Port: Gi1/0/6 Gi1/0/11

.10FZJL2+L3

Trunk (VLAN 63 + 64)

Trunk (VLAN 33 + 344)

L2

L2

L2+L3

G-WiNGEANT

RWTH

VLAN 64 (Application)Port: Gi0/0/10 - Gi0/0/11

L2+L3 UniBonn

Figure 3: Basic configuration based on Riverstone equipment (configured VLANs and Ports)

The other network components are actually used for testing purposes. Within the next monthsthere will be a configuration including all devices and allowing tests of the differenttransmission methods and services mentioned above.

For the management of the network components a separate management network (DCNnetwork) is established by TSI. The management is done at the TSI locations Nuremberg andBamberg. At Nuremberg the Ethernet switches and the routers are controlled while themanagement of SDH and WDM equipment takes place at Bamberg. The management subnetworks of the different locations are linked through encrypted connections via the G-WiN.Special clients at the different locations grant access to the management platforms at TSI.

Abbreviations:

WDM Wavelength Division MultiplexerTransmission of multiple signals at different wavelengths over one optical fiber

SDH Synchronous Digital HierarchyWidely-used transmission technique for speech and data communication

L2 VPN Layer 2 Virtual Private NetworkVirtual private network, based on Ethernet

L3 VPN Layer 3 Virtual Private NetworkVirtual routed private networks

VPLS Virtual Private LAN ServiceProvision of Ethernet services through an IP/MPLS network

H-VPLS Hierarchical Virtual Private LAN ServiceHierarchical version of VPLS

MPLS Multi-Protocol Label SwitchingProtocol for traffic engineering in IP networks

GMPLS Generalized Multi-Protocol Label SwitchingProtocol for setting up network connections (paths) with a desired bandwidthover different transmission routes

UNI User-to-Network InterfaceUser interface for setting up network connections

I-NNI Internal Network-to-Network InterfaceInterface between network components in a internal network, not standardized

E-NNI External Network-to-Network InterfaceInterface between networks of different service providers, standardized

GFP Generic Framing Procedure (ITU-T G.7042)Procedure for transmission of data packets (e.g. Ethernet) over SDH

LCAS Link Capacity Adjustment Scheme (ITU-T G.7041)Dynamical bandwidth adaptation of SDH connections

DCN Data Communication NetworkIP-/OSI network for the management of network components