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Standardized Carrier Ethernet Services for Optical Transport Networks

Carsten Rossenhövel

MEF EMEA Marketing Co-Chair

Managing Director, European Advanced Networking Test Center (EANTC)

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Developing, Marketing and Certifying Standards for Carrier Ethernet Services since 2001

Standards Compliance Education Operations

213 Members - 119 Service Providers - 40 Standards

689 Certified Products (54 CE 2.0) - 854 MEF CECPs

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Ethernet Services Growth

• Total worldwide bandwidth purchased for Ethernet Services exceeds legacy since 2012

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Carrier Ethernet Defined

The MEF has defined Carrier Ethernet as

A ubiquitous, standardized, carrier-class Service and Network defined by five attributes that distinguish it from familiar LAN based Ethernet

Carrier Ethernet is often referred to in

Enterprise circles as Ethernet Business Services. The MEF is the industry’s defining body for Carrier Ethernet.

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Enabled Services & Applications

Retail and Wholesale Interconnect Business Services • New Service Attributes Geared for Next Gen Applications

CE 2.0 for Mobile Backhaul • Blueprint for 4G/LTE, Small Cell Carrier Ethernet as Cloud Carrier • Business-Class Cloud Services

HQ

Branch

Internet Hosted/Cloud Applications

Carrier Ethernet

… Driving Market Growth

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Carrier Ethernet Service Types

UNI

Multi-point to Multi-point EVC

UNI UNI

E-LAN (Multipoint) • Multipoint L2 VPNs • Transparent LAN Service • Multicast Networks

UNI Point-to-Point EVC

UNI

E-Line (Point-to-Point) • Ethernet Private Lines (EPL) • Virtual Private Lines (EVPL) • Ethernet Internet Access

UNI

UNI UNI

Rooted Multipoint EVC

E-Tree • Rooted Multi-Point L2 VPNs • Traffic Segregation • EP-Tree, EVP-Tree

ENNI

UNI Point-to-Point EVC

UNI Carrier Ethernet Access Network

Carrier Ethernet Service Provider E-Access

E- Access • Wholesale Access Services • Access EPL • Access EVPL

Each Service Type Has a Port-Based and a Virtual Service

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Ethernet Wholesale Access Services

– Greatly simplifies buying & selling of wholesale Ethernet services

– Reduces time to contract from months to weeks

– Significant market differentiators for providers

Service Provider (buyer) (Owns the customer relationship)

NID

UNI UNI

NID

ENNI

Access Service Provider (seller) (Provides Wholesale Access to remote

customer location)

ENNI ENNI

Optional: Transit Provider (seller) (Provides Segmented Wholesale Services )

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MEF 33 Ethernet Access Services

E-Access: First Wholesale CE Service Type Specified in MEF 33 based on ENNI (MEF 26)

Two Service Types:

Ethernet Virtual Connection (EVC)

Service Provider (Owns the customer relationship)

E-Access

CE

UNI

CE

Access Service Provider (Provides Wholesale Access to

remote customer location

Service

Type Port-Based Service

(at the UNI)

VLAN-Aware Service (at the UNI)

E-Access Access EPL Access EVPL

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E-Access Benefits by Target Audience

• Wholesale Ethernet Access Providers – Standardizes first/last mile Ethernet access services

– Leverages investment in existing footprint

• Retail Ethernet Service Providers – Minimizes quantity of custom interconnect

agreements with Ethernet Access Providers

– Reduces time to market

• End-Users – Makes it easier to reach more office locations using

a single consistent Carrier Ethernet service

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Access Media Options

Carrier Ethernet provides consistent services delivered to users

connected over the widest variety of access networks

MSO/ Cable COAX

Direct Fiber

WDM Fiber

DS3/E3

Bonded Copper

Bonded T1/E1

Carrier 2

ENNI

Ethernet

Ethernet Ethernet

Ethernet

Ethernet Ethernet

Ethernet

Direct Fiber

IEEE 802.3z, ae, G.8031, etc.

SONET/ SDH

PON Fiber

Ethernet Ethernet

Ethernet

Ethernet over Packet Wireless G.8032

Ethernet Ring

Ethernet

Carrier 1

UNI ENNI

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Carrier Ethernet Backbone Transport

• Carrier Ethernet services are agnostic to the underlying transport

• Typical Backbone Transports include – Carrier Ethernet over Provider (Backbone) Bridging – Carrier Ethernet over MPLS or MPLS-TP – Carrier Ethernet over SONET/SDH – Carrier Ethernet over Direct Fiber

Service Provider

Carrier Ethernet Network

CE UNI

End User Subscriber Site

EVC

UNI CE

End User Subscriber

Site

Internet Hosted Applications

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NID Demarcation

Ethernet Over Direct Fiber Longest Distance

- Distance up to 50..80 km (not amplified)

Highest Bandwidth Capacity - Bandwidth Capacity of 100 Mbps, 1 Gbps, 10 Gbps,

40 Gbps, 100 Gbps

Security - Physically secure medium with no EMF

emission; high effort required to tap lines

Service Flexibility - High link capacity can be efficiently provisioned

with rate limiting tiered services - Network Interface Devices (NIDs) provide

managed demarcation

Central Office

Multi-Customer NID Demarcation

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Ethernet Over Optical Transport/WDM

- Terabits per second per fiber pair in the optical domain: Coarse-grain bandwidth (100 Gbit/s, 10 Gbit/s)

- Gigabits per second in the packet domain: Fine-grain bandwidth (10/1/0.1 Gbit/s)

- Multiple Ethernet virtual circuits are aggregated at the packet-optical network boundary

- WDM solutions extend to the metro aggregation today, requiring flexible packet-optical integration

Packet Network (Metro Aggregation)

Central Office

NID

Optical Transport Network

(Core) Packet-Optical Switch

WDM (Metro

Aggregation)

Packet-Optical Switch

Packet-Optical Switch

NID . . .

NID

Third-Party Provider

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MEF Specs Enable Multipoint Services

Point-to-Point Ethernet Services

• Port-based (EPL)

• VLAN-aware (AVPNs)

Packet Network (Metro Aggregation)

Central Office

NID

Optical Transport Network

(Core) Packet-Optical Switch

WDM (Metro

Aggregation)

Packet-Optical Switch

Packet-Optical Switch

NID . . .

NID

Third-Party Provider

Multipoint Services

• Supported via tunneling and/or Ethernet-aware packet-optical switches

• E-LAN

• E-Tree (Point-to-Multipoint)

Wholesale Access Services

• Port-based (Access EPL)

• VLAN-aware (Access EVPL)

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Manageable Multi-Class of Service Delivery

• MEF 23.1: Class-based performance requirements

• Easy to deliver tighter delay or delay range as well as low loss

Performance Attributes

CoS Label H CoS Label M CoS Label L Applicability

Frame Delay (ms) 10 20 37 At least one of either FD or MFD required

MFD (ms) 7 13 28

Inter-Frame Delay Variation (ms)

3 8 or N/S N/S

At least one of either FDR or IFDV required

Frame Delay Range (ms)

5 10 or N/S N/S

Frame Loss Ratio .01% i.e. 10-4 .01% i.e. 10-4 .1% i.e. 10-3

UNI

EVC1

CoS M 30 Mbps CIR for Video

CoS L 50 Mbps CIR for VPN data traffic

68Mbps for Internet Access

EVC2

CoS H 10 Mbps CIR for Voice

(Exa

mp

le)

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Fault Management, Performance Monitoring

• OTN-level OAM recommended for link monitoring

• Ethernet SOAM recommended for service and customer-level monitoring

• Monitor end-to-end connection per Class of Service

Retail Service Provider

Customer

Premises Wholesale/Access Provider

Customer

Premises

ENNI UNI UNI

Service Provider ME

Operator ME Operator ME

MSG RESP MSG RESP

ENNI ME

Carrier Ethernet Network

Carrier Ethernet Network

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Summary

• Ethernet Access Services constitute now >50% of worldwide Access bandwidth

• MEF supports deployment – Professional education program

– Equipment/services certification program

• Carrier Ethernet adds value to OTNs – Enabling advanced multipoint services

– Creating a standardized wholesale access model

– Allowing for strict SLAs through service-level fault management and performance monitoring

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