IP over D-WDM Dense Wave Division Multiplexing · 2012-03-20 · IP over D-WDM • IP over D-WDM...

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GTS Carrier Services GTS Confidential Page 1 - November, 1999 IP over D-WDM Dense Wave Division Multiplexing Ebone a subsidiary of GTS Carrier Services

Transcript of IP over D-WDM Dense Wave Division Multiplexing · 2012-03-20 · IP over D-WDM • IP over D-WDM...

Page 1: IP over D-WDM Dense Wave Division Multiplexing · 2012-03-20 · IP over D-WDM • IP over D-WDM connects 2.5 Gbps directly as optical interfaces into the IP routers (Cisco 12000)

GTS Carrier Services GTS ConfidentialPage 1 - November, 1999

IP over D-WDM

Dense Wave Division Multiplexing

Ebone

a subsidiary of GTS Carrier Services

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GTS Carrier Services GTS ConfidentialPage 2 - November, 1999

The companies

• Ebone (European) pioneering IP transit provider, providing top-

tier Internet connectivity since 1991.

• GTS pioneering European Carriers Carrier operating their own

pan-European fiber network.

• Ebone is now a 100 % owned subsidiary of GTS Carrier

Services allowing the companies to combine the best from the

two companies.

• Ebone continues as a brand name for the IP products.

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GTS Carrier Services GTS ConfidentialPage 3 - November, 1999

The combined company

• GTS services as the European Carriers Carrier more than 150

Carriers and ISPs, representing virtually every major segment of

the telecommunications industry

• Operating high speed (n*2.5 Gbps), high quality (99,90%)

services

• Based on leading edge D-WDM, SDH & IP technologies

• Multiple network redundancies, no single point of failure

• The first operator to use IP over dense wave division multiplexing

(IP over D-WDM) on an international network

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GTS Carrier Services GTS ConfidentialPage 4 - November, 1999

GTS Carrier Services Offering

• SDH Services

• European Point to Point Transmission Capacity

• European Ring & V/U link Services

• Transatlantic Transmission Capacity

• Optical Sub-Network Services (D-WDM)

• Managed Gigabit Network Services (Dedicated SDH over D-

WDM)

• Ebone Internet Services

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GTS Carrier Services GTS ConfidentialPage 5 - November, 1999

Wavelength Division Multiplexing

fibre

����mux ���� demux

STM-16

STM-16

STM-16

STM-16

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GTS Carrier Services GTS ConfidentialPage 6 - November, 1999

D-WDM as

Global overlay network

WDM NodeSDH Node

SDHSDH

WDMWDM

IPIP LambdaLambda

IP Node

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GTS Carrier Services GTS ConfidentialPage 7 - November, 1999

IP over D-WDM

• IP over D-WDM connects 2.5 Gbps directly as optical interfaces

into the IP routers (Cisco 12000) thus eliminating the need for

SDH equipment.

• By going to D-WDM the GTS IP backbone is moving from the

Mbps environment of SDH (2, 34, 45 and 155 Mbps) and directly

into the Gbps environment, this combined with the non

overbooking policy of GTS allows very fast upgrades of customer

connections.

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GTS Carrier Services GTS ConfidentialPage 8 - November, 1999

Equipment Suppliers

• Cienna

– D-WDM equipment

• Cisco

– POS (packet over Sonet) cards

– CISCO 12000 & 7200 Routers

• Alcatel

– Only for SDH - not used for IP over D-WDM

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GTS Carrier Services GTS ConfidentialPage 9 - November, 1999

Operational IP Network

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GTS Carrier Services GTS ConfidentialPage 10 - November, 1999

Early deployment IP/WDM

London

Brussels

Paris

Geneva

Frankfurt

Copenhagen

Stockholm

STM-16 directly over fiber

STM-1

Amsterdam

Ebone PoP

HER PoP

HER

NOC

Hoeilaart (Brussels)

HER Headq.

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GTS Carrier Services GTS ConfidentialPage 11 - November, 1999

PoP architecture

• Redundant core network

• Back-to-back redundant STM-1s between access- and core routers

• STM-1 and T3 connections on Cisco 12000 routers

• E1 and E3 connections on Cisco 7200 routers

STM-16

STM-1

T3

STM-16

E3

Customer access

12012 12012

7206VXR

E1

STM-1

STM-16

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GTS Carrier Services GTS ConfidentialPage 12 - November, 1999

IP over D-WDM QoS

� Provide QoS by capacity

management:

�0% packet-loss

�lowest possible latency

� Protection done at IP layer

Latency:Latency:

•• propagation delay 5ms per 1000km one way delaypropagation delay 5ms per 1000km one way delay

•• serialization delay 0.01 ms for 1500 byte packetsserialization delay 0.01 ms for 1500 byte packets

•• queueing delay depends on network dimensioningqueueing delay depends on network dimensioning

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GTS Carrier Services GTS ConfidentialPage 13 - November, 1999

Planned Network

end of year 2000

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GTS Carrier Services GTS ConfidentialPage 14 - November, 1999

Flag Atlantic 1 FA-1

� 50:50 joint venture with FLAG Telecom

� 1st terabit transatlantic dual cable system

� Three loop system providing highest resiliency

� Directly linking New York to London and Paris… and all cities on

� the GTS network

� Marine construction awarded to Alcatel Submarine Networks

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GTS Carrier Services GTS ConfidentialPage 15 - November, 1999

FA-1 Three loop system

TransAtlantic

(Subsea System)Land

based

links

Long Island

New York-1

New York-2

FA-1 System

BackhaulUSAUSA

Porthcuno

St. Brieuc

Sea

based

links

London

Paris

GTS CSGTS CS

PanPan--European European

NetworkNetwork

FA-1 SystemBackhaul

Long Island

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GTS Carrier Services GTS ConfidentialPage 16 - November, 1999

WDM pass-thru

• A router at every WDM terminal site is expensive

• Connect wavelengths on different spans to create WDM circuit

between two routers.

Frankfurt Stuttgart Munich

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GTS Carrier Services GTS ConfidentialPage 17 - November, 1999

GTS network strategy: IP

• Use IP/WDM for maximum capacity & flexibility

• Reduce network complexity by reducing equipment

• Use IP/WDM overlay for traffic engineering

• Use IPsec for IP VPNs

• Provide QoS by capacity management

– 0% packet-loss

– lowest possible latency

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GTS Carrier Services GTS ConfidentialPage 18 - November, 1999

The need for speed!

IP/WDM links

• 2000: 10 Gbit/s

• 2002: 40Gbit/s

98 99 00 01 02

40Gb

10Gb

2.4Gb155Mb

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GTS Carrier Services GTS ConfidentialPage 19 - November, 1999

Throttling customer connections

Goal: allow flexible capacity upgrades

• Over-dimension access circuit, implement upgrades when required.

• Supported at E3/T3 speeds with Cisco equipment. Also required for STM-1 and

STM-4

Customer access link example

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GTS Carrier Services GTS ConfidentialPage 20 - November, 1999

Traffic engineering

Goal: allow flexibility if there is a WDM wavelength shortage

Solution: IP/WDM pass-thru

London Frankfurt

Paris

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GTS Carrier Services GTS ConfidentialPage 21 - November, 1999

Benefits of D-WDM

• D-WDM offers GTS the ability to provide high bandwidth for IP as

well as other services utilizing existing fiber and by adding a limited

number of new fiber paths expanding the network.

• IP over DWDM saves the use of SDH equipment and multiplexing

• D-WDM allows GTS to remain on the forefront as the Carriers

Carrier

• D-WDM allows GTS to do fast high bandwidth reengineering if the

need for high bandwidth increases in a location.

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GTS Carrier Services GTS ConfidentialPage 22 - November, 1999

Thank you

Jan Guldborg

[email protected]

Phone: +45 39 15 08 08

Mobile:+45 40 88 85 48