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Carrier Ethernet Introducción y Arquitectura
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Carrier EthernetIntroducción y Arquitectura
Resumen del Curso
• Module 0 - Carrier Ethernet Introduction and Architecture
• Module 1 - Carrier Ethernet Services
• 1-1 Carrier Ethernet Services Definitions
• 1-2 Carrier Ethernet Services Attributes
• 1-3 Carrier Ethernet Certification
• Module 2 - Carrier Ethernet Interfaces
• 2-1 User Network Interfaces
• 2-2 External Network to Network Interface
• Module 3 - Carrier Ethernet OAM and Protection
• 3-1 Link OAM and E-LMI
• 3-2 Service OAM
• 3-3 Protection Mechanisms
• Module 4 - Circuit Emulation, Synchronization and Mobile Backhaul
• Module 5 - Carrier Ethernet Transport Technologies
• 5-1 Native Ethernet Transport
• 5-2 MPLS Transport
• 5-3 SONET/SDH and Optical Transport
• Module 6 - Carrier Ethernet Access Technologies
• Module 7 - MEF CECP Boot Camp Course Review
Ethernet as a Service
• Ethernet as a networking protocol dominated Local Area Networks (LANs)
• Around 1998 a few innovative Service Providers wanted to differentiate themselves started to deploy Ethernet as a service
• Cogent, Telsion, Yipes… NTT
• At the time Ethernet was lacking the 5 Attributes of Carrier Ethernet
• Services based upon Enterprise-Class Ethernet Switches
• MEF defined Ethernet Services to improve existing service offering
• TDM Leased Lines
• Frame Relay Internet Access
• ATM Transparent LAN
• MEF defined Ethernet Services E-Line, E-LAN and E-Tree
MEF 5 Attributes of Carrier Ethernet
MEF – Accelerating the Adoption of Carrier Ethernet
Carrier Ethernet Attributes
• Ethernet Service Definitions• Non existent prior to the MEF
• Scalability• Expansion of the subscriber ID address
space
• Reliability• Protection mechanisms for Carrier
Ethernet Services
• Quality of Service• Definition of Classes of Service
• Standard marking
• Traffic management
• Service Management• Link OAM and Service OAM
• Service activation testing tools
MEFOrganization
MEF Board of Directors
Technical Committee
Co-Chairs
President Chairman
Certification Committee
Co-chairs
Marketing Committee
Regional Co-chairs Operations
COO
Member
SupportAdministration
Volunteers
ProfessionalsCommittee
Support
MEFTechnical Committee
Technical Committee Mandate
Develop technical documents that promote the world wide adoption and deployment of Carrier Class Ethernet networks and services
Technical Committee
Technical Committee
Services Architecture Management Testing
Services Attributes
Services Definitions
Legacy Services
(CES)
Mobile Backhaul IA
(MBH IA)
Class Of Service IA
(COS IA)
Reference
Model
User Network
Interface (UNI)
Eth Local Mgmt.
Interface (E-LMI)
External Network-
Network Interface
(E-NNI)
Ethernet Services
Constructs (ESC)
Network Interface
Device (NID)
Information Model
and MIBs
NE and Service
Mgmt
Service OAM FM IA
Abstract Test Suites
for Ethernet Services
Abstract Test Suite
for CES
Abstract Test Suites
for UNI and ENNI
Abstract Test Suite
for Ethernet Access
Services
Service OAM PM IA
Service Provider
ad-hoc
Operational
Tools for Carrier
Ethernet
Technical Document Types
TechnicalSpecification
ImplementationAgreement Abstract Test Suite
MEF 10.2
Ethernet Service Attributes
Phase 2
MEF 14
Abstract Test Suite
For Traffic Management
Phase 1
Also, position statement or ‘Liaisons’ with other SDOs
MEF 22
Mobile Backhaul
Implementation
Agreement
Typical Life of a Project
Informal
Discussion
Contributions,
Conf Calls,
Email,
Meetings
TC Approves
Ad Hoc group?
Idea
Project
Proposal
TC Approves
Project Proposal?
Significant
Straw Ballot
Comments?
Stable
Document TC Approves
Letter Ballot?
Published
Document
Y
Y
Y
Y N
N
N
N
Document
Editor
Approved
Draft
MEFMarketing Committee
Marketing Leadership Structure
Global Programs & Regional Support
Kevin Vachon (COO) & Contractor Team
Marketing Leadership
Council
Marketing Working
GroupsMarketing
Subcommittees
APAC Co-chairs EMEA Co-chairs Americas Co-chairs
MEF Board
Regional Marketing Activities
• Market monitoring, trends, challenges, opportunities for growth
• Regulatory considerations
• Press & Analyst activities
• Membership recruitment
• Events participation
MEFWeb Sites
andMember Resources
Web Sites and Distribution Lists
MEF Public Site
www.metroethernetforum.org
Members Web Site
www.metroethernetforum.net
MEF mailing lists
MetroEthernetForum.org - Public
MetroEthernetForum.net – Members
• Managing your account
• Meeting registration
• Technical and marketing documents
• Technical and marketing calendars
• Group participants (Roster)
• Analyst reports
• Document balloting
EthernetAcademy.net
Professional Certification Deliverables
MEFCertification Programs
MEF Certification Programs
…..that equipment conforms to MEF specifications and can deliver compliant services and meet performance objectives
….that service providers deliver MEF compliant Carrier Ethernet services to their subscribers
….that individuals have the knowledge and skills to work with equipment and services to support the Carrier Ethernet industry
MEFApproved Specifications
and Basic Concepts
Approved MEF Specifications
* MEF 6.1 replaced MEF 6
* MEF 7.1 replaced MEF 7
* MEF 10 .2 replaced MEF 10.1.1, MEF 10.1, MEF 10 which replaced MEF 1 and MEF 5
Specs Title
MEF 2 Requirements and Framework for Ethernet Service Protection
MEF 3 Circuit Emulation Service Definitions, Framework and Requirements in Metro Ethernet Networks
MEF 4 Metro Ethernet Network Architecture Framework Part 1: Generic Framework
MEF 6.1* Metro Ethernet Services Definitions Phase 2
MEF 7.1* EMS-NMS Information Model
MEF 8 Implementation Agreement for the Emulation of PDH Circuits over Metro Ethernet Networks
MEF 9 Abstract Test Suite for Ethernet Services at the UNI
MEF 10.2* Ethernet Services Attributes Phase 2
MEF 11 User Network Interface (UNI) Requirements and Framework
MEF 12 Metro Ethernet Network Architecture Framework Part 2: Ethernet Services Layer
MEF 13 User Network Interface (UNI) Type 1 Implementation Agreement
MEF 14 Abstract Test Suite for Traffic Management Phase 1
Approved MEF Specifications
Specs Title
MEF 15 Requirements for Management of Metro Ethernet Phase 1 Network Elements
MEF 16 Ethernet Local Management Interface
MEF 17 Service OAM Framework and Requirements
MEF 18 Abstract Test Suite for Circuit Emulation Services
MEF 19 Abstract Test Suite for UNI Type 1
MEF 20 User Network Interface (UNI) Type 2 Implementation Agreement
MEF 21 Abstract Test Suite for UNI Type 2 Part 1: Link OAM
MEF 22 Mobile Backhaul Implementation Agreement Phase 1
MEF 23 Class of Service Implementation Agreement Part 1
MEF 24 Abstract Test Suite for UNI Type 2 Part 2: E-LMI
MEF 25 Abstract Test Suite for UNI Type 2 Part 3: Service OAM
MEF 26.1 External Network Network Interface (ENNI) – Phase 2
Approved MEF Specifications
Specs Title
MEF 27 Abstract Test Suite For UNI Type 2 Part 5: Enhanced UNI Attributes & Part 6: L2CP Handling
MEF 28 External Network Network Interface (ENNI) Support for UNI Tunnel Access and Virtual UNI
MEF 29 Ethernet Service Constructs
MEF 30 Service OAM – Fault Management IA
MEF 31.1 Service OAM – Fault Management Managed Objects Definition
MEF 32 Requirements for Service Protection Across an ENNI
MEF 33 Ethernet Access Service Definitions
MEF 34 Abstract Test Suite for Ethernet Access Service Definitions
MEF 35 Service OAM – Performance Management Managed Objects Definition
MEF 36 Service OAM – Performance Management Managed Objects Definition
MEF 37 Abstract Test Suite for External Network Interfaces (ENNI)
MEF 38 & 39 Service OAM FM & PM YANG Modules
MEF 40 UNI and EVC Definition of Managed Objects
MEN Network Layered Model
• Application layer (APP Layer) agnostic
• Ethernet layer (ETH Layer) provides L2 connectivity between any application over any transport layer
• Transport layer (TRAN Layer) agnosticApplication Services Layer
(Internet, Voice. Video)
Ethernet Services Layer
(MEF Services)
Transport Services Layer(IEEE 802.1, SONET/SDH, MPLS.)
Data
Pla
ne
Con
tro
l P
lan
e
Mgm
t P
lan
e
MEF Architecture Framework
• UNI: User Network Interface
The physical demarcation point between the responsibility of the Service Provider and the responsibility of the Subscriber
• ENNI: External Network to Network Interface
ENNI is the demarcation point between the service provider and the operator or between two operators
• EVC: Ethernet Virtual Connection
• OVC: Operator Virtual Connection
ENNI-N
OPERATOR MEN
UNI-N UNI-CENNI-NUNI-N
EVC
OVC OVC
UNI-N UNI-C
UNI-C
OPERATOR MEN
Carrier Ethernet Academy
MEF CECP EXAM
CECP Exam Details
• Exam consists of 80 questions, 70 of which are scored
• 10 Topic Areas
• Carrier Ethernet Service Definitions• Access• Transport• Basic Definitions• UNI & ENNI, EVC & OVC Service Attributes• Service Certifications• Applications• Comparing Ethernet with other L2 and L3 Services• Circuit Emulation Services• Service OAM
• Candidates must achieve 63% to pass
Example Question - Section 1
A customer with three locations requests Ethernet service for very transparent connectivity between the locations. Which service would best meet this requirement?
A. A single Ethernet Private LAN (EP-LAN)
B. A single Ethernet Virtual Private LAN (EVP-LAN)
C. A single Ethernet Private Tree (EP-Tree)
D. A single Ethernet Virtual Private Tree (EVP-Tree)
Example Question - Section 1
A customer with three locations requests Ethernet service for very transparent connectivity between the locations. Which service would best meet this requirement?
A. A single Ethernet Private LAN (EP-LAN)
B. A single Ethernet Virtual Private LAN (EVP-LAN)
C. A single Ethernet Private Tree (EP-Tree)
D. A single Ethernet Virtual Private Tree (EVP-Tree)
The requirement for a multi-point service with very transparent connectivity makes the EP-LAN the best choice due to
the full mesh connectivity, the Service Provider being prevented from CE-VLAN ID or CoS manipulation and the ability to
Tunnel Layer 2 Control Protocols
MEF Professional Certification
Designed for technical professionals
Technical Sales and Marketing
Network Engineering
Network Operations
Product Managers
Test Engineering
Technical Support
MEF membership not required in order to obtain the CECP certification
775 MEF-CECPs
from 160 Companies
In 55 Countries
MEF Post Exam Assessment
Outline of the Course
MEF
Concepts
Architecture MEF 4
Ethernet
Services
MEF 6.1
MEF 10.2
Ethernet
Interfaces
MEF 13
MEF 20
MEF 26
Circuit
Emulation
Services
MEF 8
MEF 18
MEF 22
Delivering
Carrier
Ethernet
Ethernet
TransportIEEE 802.1
Other
Transport
IETF
ITU
Ethernet
Access
IEEE
ITU
Practice
ExamCEA
Summary
• MEF is composed of 3 Committees
• Technical Committee
• Marketing Committee
• Certification Committee
• MEF Technical Committee develops 3 types of documents
• Technical Specifications
• Implementation Agreements
• Abstract Test Suites
• The Carrier Ethernet Network Model or MEN Model is:
• Agnostic to the Application Layer
• Focused on Ethernet Layer
• Agnostic to the Transport Layer
