Introduction To Carrier Ethernet - EANTC · Introduction To Carrier Ethernet Carsten Rossenhövel...

European Advanced Networking Test Center

Introduction To Carrier Ethernet

Carsten RossenhövelManaging Director

European Advanced Networking Test Center (EANTC AG)


Test and certification of network components for manufacturersProof of concept evaluation, acceptance tests and network design consultancy for service providers and large enterprisesResearch and development of test methods and analysis tools

EANTC, Berlin, Germany

The European Advanced Networking Test Center offers vendor independent network quality assurance since 1991.

About EANTC


What is Carrier Ethernet?

Current status of the technology

Recent and future testing

Q & A

Agenda


Transparent business data service on the Ethernet layerNo Internet / IP routers involved

User-Network Interface (UNI) standardized by theMetro Ethernet Forum (MEF)Point-to-point service: E-LineMultipoint service: E-LAN

UNI UNI

What is Carrier Ethernet?


Carrier Ethernet one of the hottest topics in wirelineand wireless backhaul networking in 2006

Carriers seek for scalable and affordable solutions for Triple Play and business layer 2 servicesMany networks are upgraded after telecom investments were delayed in the early 2000‘s“Carrier Ethernet” driven by strong marketing efforts

Carrier Ethernet Justification


• Carrier Ethernet is a ubiquitous, standardized, carrier-class SERVICE defined by five attributes that distinguish Carrier Ethernet from familiar LAN based Ethernet

• It brings the compelling business benefit of the Ethernet cost model to achieve significant savings

Carrier Ethernet

• Scalability

• Standardized Services

• Service Management

• Quality of Service

• Reliability

Carrier Ethernet Attributes

ContentsContents Carrier EthernetCarrier Ethernet TechnicalTechnical Future WorkFuture Work CertificationCertification MembershipMembershipMarketingMarketing

Source: Metro Ethernet Forum

Carrier Ethernet Defined


Residential Triple Play:Video requires huge bandwidth scalability, multicast replicationVoice requires application-specific traffic prioritization, low latency, intelligent filtersData requires queue-in-queue encapsulation, MAC address scalability

Business applications:Multipoint (E-LAN) requires suitable network serviceMulticast, QoS also used

Services And Applications


Wireless Backhaul

Voice gateway

Voice/VideoTelephony

HD TVTVoD, VoD

Video Source

Gaming, BusinessBackup, ERP

Internet Video Source

BusinessBroadband

E-Line andE-LAN service

Global/NationalCarrierEthernet

Global/NationalCarrierEthernet

Small/Medium Business

Metro CarrierEthernetMetro CarrierEthernet

AccessCarrierEthernet

AccessCarrierEthernet

ResidentialTriple-Play

FTTx, DSLAM, Cable Modem

Broadbandmobile data/video


Carrier Ethernet Access Expansion


Can standardization keep pace with demand?IEEE 802.1 / 802.3 CommitteesMetro Ethernet Forum (MEF)ITU NGN Focus Group

Protocols / Services Yet To Be StandardizedProvider BridgesOperation, Administration & Maintenance (OAM)Network-Network Interface (E-NNI)

Status of Standardization


2006

MEF 16MEF 4

MEF 2

MEF 3

MEF 6

MEF 7

MEF 8

MEF 10

MEF 11

MEF 12

MEF 13

MEF 14

MEF 15

ELMIArchitecture

Protection

Circuit Emulation

Service Definitions

EMS-NMS

Circuit Emulation

UNI Framework

UNI-IA

Traffic Management

Management

Architecture

Service Attributes

200520042003

MEF 9Services Test Suite


MEF Specifications Timeline


TMF814 – EMS to NMS Model

Y.1730 – Ethernet OAM ReqY.1731 – OAM MechanismsG.8031 – ProtectionY.17ethqos – QoSY.ethperf - Performance

MEF 7– EMS-NMS Info ModelMEF 15– NE Management ReqOAM Req & FrameworkOAM Protocol – Phase 1Performance Monitoring

802.3ah – EFM OAM802.1ag – CFM802.1AB - Discovery802.1ap – VLAN MIB

Ethernet OAM

-

G.8010 – Layer ArchitectureG.8021 – Equipment modelG.8010v2 – Layer ArchitectureG.8021v2 – Equipment modelY.17ethmpls - ETH-MPLS Interwork

MEF 4 – Generic ArchitectureMEF 2 – Protection Req & FrameworkMEF 11 – UNI Req & FrameworkMEF 12 - Layer Architecture

802.3 – MAC802.3ar – Congestion Management802.1D/Q – Bridges/VLAN802.17 - RPR802.1ad – Provider Bridges.1ah – Provider Backbone Bridges.1ak – Multiple Registration Protocol.1aj – Two Port MAC Relay.1AE/af – MAC / Key Security.1aq – Shortest Path Bridging

Architecture/Control

-

G.8011 – Services FramewrkG.8011.1 – EPL ServiceG.8011.2 – EVPL ServiceG.asm – Service Mgmt ArchG.smc – Service Mgmt Chnl

MEF 10 – Service AttributesMEF 3 – Circuit EmulationMEF 6 – Service DefinitionMEF 8 – PDH EmulationMEF 9 – Test SuitesMEF 14 – Test SuitesServices Phase 2

-

Ethernet Services

-TMF

G.8012 – UNI/NNIG.8012v2 – UNI/NNI

MEF 13 - UNI Type 1MEF 16 – ELMIE-NNI

802.3 – PHYs802.3as - Frame

Expansion

Ethernet Interfaces

Standards Body

ITU

MEF

IEEE


Ethernet Standards Overview


10GbE

1000Base-PX20

10BASE-T(Cu Cat5)

MaximumBandwidth (Symmetric)

100m 500m 750m 2000m 2700m 5000m 10km 20km

2Mbps

10Mbps

100Mbps

1Gbps

10Gbps

100BASE-T(Cu Cat 5)

1000BASE-T(MMF)

1000BaseB/L/PX101000BASE-LX (SMF)

ExistingIEEE 802.3standards

ExistingIEEE 802.3standards

EFMIEEE 802.3ah

EFMIEEE 802.3ah

Minimum

Reach

100Base-L/BX10 (Single Mode Fiber)

2Base-TL(SHDSL)

10Pass-TS(VDSL)

2Base-TL(SHDSL)

Bonded Pairs

100BASE-FX(MMF)

EFM CopperEFM Fiber

Source: Actelis

Ethernet in the First Mile


CopperDistribution Cable

Business HQ

Branch office

ISP

Elementary School

SME Customer

Ethernet over Fiber

Router

WAN Metro Ethernet,

SONET/SDH, ATM

College

Source: Hatteras Networks

Metro Ethernet AccessCopper, Fiber and Wireless Access Complement Each Other


UNI UNI

Media Converter

Media Converter

Carrier Edge

Carrier Edge

Media Converter

Media Converter

IEEE 802.3ah

MEF & ITU Y.1731

Access Link OAM Access Link OAM

IEEE 802.1ag, MEF &ITU Y.1731

Connectivity Layer OAM

Service Layer OAM (UNI to UNI)

100FX 100FX

CustomerEquipment

CustomerEquipment

Carrier NW

802.1aj demarcation device

802.1aj demarcation device

Source: Adva Optical

Ethernet OAM Standards


• OAM – Operation Administration & Maintenance – tools for:• Installation• Monitoring• Fault Detection• Diagnosing Faults• Collecting Statistics

• Goal• Minimize cost of network operation / ownership• Maximize revenue – control / report of SLA

Customer PremisesCustomer Premises

EDDCPE EDD CPE

NMS

CarrierNetwork

First Mile(Access Link)

First Mile(Access Link)


First Mile Ethernet OAM Features


Will implementations be compliant soon?Many more vendors than in the router marketDiverse markets (core, aggregation, DSLAMs, CPEs, …)Different service provider architectures

Carrier Ethernet Testing is key to increase product quality and service provider confidence

Relevance of Carrier Ethernet Testing


Carrier-Specific Ethernet Test Areas:L2 Scalability to many 10,000 customers in an Ethernet cloudInterfacing with core / aggregation networks (MPLS, IP)Protection and High AvailabilitySecurity (Denial of Service attacks)User-Network Interface (facing CPEs)Multicast performance both for Triple Play and business VPN

servicesService Level Management (QoS, DiffServ)Provisioning, Network Management

Current Areas of Testing


Naturally: Improve Multi-Vendor InteroperabilityValidate New Carrier Ethernet StandardsDemonstrate Sample Network Design

Madrid, Sept 25-29, 2006

Organized byHosted by

Multi-Vendor Interop Testing


Participating Vendors


Extensive tests conductedat EANTC in Berlin Sept 6-15Verified end-to-end interoperability under NDAWith on-site support fromall participating vendorsService provider support

(on-site)

(test plan review)

Hotstaging


50+ devices30 kVA power300 network links from E1 to 10GigE3 months preparation8 days of testing53 engineers3.5 tons of equipment shipped175 liters coffee

Some Figures …


Transport Technologies

MPLSVLAN-based EthernetProvider BridgesProvider Backbone BridgesEthernet over RPR and Wireless (RWPR)Ethernet over SDH RingsEthernet over E1Ethernet over Copper

Network Topology


E-Line Service PerformanceZero packet loss throughout the whole networkLess than 1 ms end-to-end frame delay (7+ GigE hops)Bandwidth Profiles widely implemented, enabling and enforcing service levels at the edge

MPLS Services 7 devices implemented point-to-point and multipoint servicesFew issues seen; mature technology

Results Highlights


First Ethernet OAM Multi-Vendor Tests, Worldwide

1. Physical Layer OAM (IEEE 802.3ah)

“Dying Gasp” Message

2. VLAN-based OAM (IEEE 802.1ag Draft 7)

Continuity Check

Results Highlights (2)


Carrier Proof of Concept TestsCarrier Ethernet architectures are complex

In fact these are “multi-service” networksCoexistence of residential / business services with guaranteedservice levels is challengingSome Ethernetproducts havean Enterpriseheritage

Successful/Failed Tests

0

10

20

30

A B C D E F G HVendors

PASS FAIL

Example: EANTC Ethernet switch proof of concept test


Performance TestsCarrier Ethernet imposes new scalability, performance,

security challengesTypical issues:

Cannot learn Ethernet addresses fast enoughMAC address table too smallDoes not master MAC flooding and hijacking attacksThroughput depends on % of mcast/bcast trafficQoS implementations not easy to configure, different philosophies / hardware support…


Carrier Ethernet has a great future because it is a service-based idea – not limited to Ethernet transport

Stringent Network-Network Interface (NNI) specifications are required to achieve performance and interoperability goals

Further scalability, protection and multicast testing required in the future

Outlook


Thank you for your interest!

For further information, please contact us:

EANTC AG Einsteinufer 17 D-10587 BerlinGermany

Phone: +49.30.318 05 95-0Fax: +49.30.318 05 95-10E-mail: [email protected]

www.eantc.de

Introduction To Carrier Ethernet - EANTC · Introduction To Carrier Ethernet Carsten Rossenhövel...

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