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MEF Report: User to Network Interface (UNI) Network-to-Network Interfaces (E-NNI) and Global Interconnection Tools. Arie Goldberg, CEO, Omnitron System Technology, Inc. Board Member, Metro Ethernet Forum. Agenda. Carrier Ethernet Challenges and Services

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slide1

MEF Report: User to Network Interface (UNI) Network-to-Network Interfaces (E-NNI)and Global Interconnection Tools

Arie Goldberg,CEO, Omnitron System Technology, Inc.Board Member, Metro Ethernet Forum

agenda
Agenda
  • Carrier Ethernet Challenges and Services
  • Ethernet Services Network Demarcation:
    • UNI and E-NNI
  • NID Project
  • Global Interconnect Tools
    • Global Services Directory
    • Wholesale Access Template
demand drivers services and bandwidth
Demand Drivers – Services and Bandwidth

On-line Government

Healthcare date & Tele-medicine

Education Remote learning

$$

$$

$$

NEW

tools!

Apps!

$$

$$

Backhaul

Apps

$$

$$

$$

VoIP

VoD

IPTV

E-Line

E-LAN)

Low CAPEX

Low OPEX

Low Cost to

Subscribers

Commerce, On-line

Business, Tele-workers, On-line

Financial Services, On-line

some of the challenges of ce service providers
Some of the Challenges of CE Service Providers
  • Turn-up services quickly and efficiently - ASAP
  • On/Off-Net services – meet global customer needs - buy and sell / wholesale with other providers - generate revenue on and off-net
  • Reliability/Up-time (99.999%) - enable high value services with SLAs for higher rate revenues
  • Quality – build customer satisfaction – increase customer retention – keep revenues coming
  • Efficient operation - keep OpEx costs down – be competitive and profitable
the mef 5 attributes of carrier ethernet
The MEF 5-Attributes of Carrier Ethernet

Carrier Ethernet

  • 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 Attributes

  • Standardized Services
  • Scalability
  • Service Management
  • Reliability
  • Quality of Service
mef defined basic ce services
MEF defined Basic CE Services

E-LINE

EPL: Private Line

EVPL: Virtual Private Line

Point to Point

Site2Site L2 VPNs

Point-to-Point EVC

CPE

CPE

UNI

UNI

E-LAN

EP-LAN: Private LAN

EVP-LAN: Virtual Private

LAN

Multi-Point to Multi-Point

Multi-Site L2 VPNs

Transparent LANs

Multipoint EVC

CPE

CPE

UNI

UNI

Point to Multi-Point

Broadcasting Services

Triple Play backhaul

Mobile backhaul

E-TREE

EP-Tree: Private Tree

EVP-Tree: Virtual Private

Tree

CPE

UNI

Rooted Multipoint EVC

CPE

UNI

UNI

CPE

global services crossing carrier boundaries
Global Services crossing carrier boundaries

UNI

UNI

Carrier C

Access Provider

UNI

Multi-point to

Multi-point EVC

E-NNI

Carrier A

Service Provider

E-NNI

UNI

UNI

Carrier B

Transport Provider

carrier ethernet s evolution
Carrier Ethernet’s “Evolution”

OOF WAN

Global Interconnect

WAN

MAN

LAN

1999, Europe:

First Metro Ethernet

  • Basic Ethernet Access Services definition
  • From Metro to Regional Services
  • From Regional to National Services
  • From National to International / Global Services
  • From Intra-Provider (In-franchise/IF) to Inter-Provider (out-of-franchise/OOF) Services
three phases of carrier ethernet
Three Phases of Carrier Ethernet

Phase 1:Architecture and Definition

First specifications defined

Implementation begins

Definitions of Ethernet services

Carrier Ethernet defined

Phase 2: Implementation and Certification

MEF Certification Program

Large scale deployment begins

Carrier Ethernet extends from Metro

Phase 3: Global Interconnect

Specification for Carrier Ethernet Interconnect

Specifications for automated management of UNI

Service OAM fault and performance specifications

Class of Service alignment

Operational tools: WAIG, GSD

Phases Timeline

2001-3

2004

2005-7

2008-10

2011-14

Carrier Ethernet Milestones

First MEF specs

Carrier Ethernet Defined

Global Interconnect

UbiquityRevenues>$30bn

10

carrier ethernet demarcation points
Carrier Ethernet Demarcation Points

E-NNI

UNI

E-NNI

UNI

EVC

Access Network Provider

Transport Network Provider

E-NNI

Ethernet Service Provider

Subscriber

Subscriber

  • UNI - User-to-Network Interface
    • Demarcation point between
      • Ethernet Service Provider/Access Network Provider and Subscriber
    • Ethernet Service / Ethernet Virtual Connection (EVC) starting / ending point
  • E-NNI - External Network-to-Network Interface
    • Demarcation point between:
      • Ethernet Service Provider and Access Network Provider
      • Ethernet Access Provider and Transport Network Provider
  • EVC - Ethernet Virtual Connection
    • Ethernet service connecting between 2 or more UNIs
the mef user network interface
The User Network Interface (UNI)

The UNI is the single point that is the demarcation between the customer and the service provider/Cable Operator/Carrier/MSO

The UNI is typically at a port on an active device owned and operated by the Service Provider

The UNI in a Carrier Ethernet Network uses a physical Ethernet Interface at operating speeds 10Mbs, 100Mbps, 1Gbps or 10Gbps

The MEF User Network Interface
  • In this instance the UNI is located at the port of the service provider edge device located at the customer premises.
  • The service provider “cloud” is shown terminating in the customer premises

CE

Carrier Ethernet Network

customer responsibility

Service provider responsibility

UNI

functional elements of the uni
There are two functional elements (typically*) located in two connected devices situated on either side of the UNI demarcation point:

UNI-C: Executes the processes of the customer side

UNI-N: Executes the processes of the network side

* All the functions of the UNI-N and UNI-C need not be located in the same physical device as they may be located in several devices

Functional Elements of the UNI

UNI-C

CE

Carrier Ethernet Network

UNI-N

customer responsibility

Service provider responsibility

UNI

from uni 1 to uni 2
From UNI 1 to UNI 2

MEF 11 introduced 3 types of UNI

  • UNI Type 1 (now defined in MEF 13), November 2005
    • Service Provider and Customer manually configure the UNI-N and UNI-C for services
    • UNI Type 1.1 and 1.2 are defined
      • Type 1.1 : Non-multiplexed UNI for Services like EPL
      • Type 1.2 : Multiplexed UNI for Services like EVPL
  • UNI Type 2 (now defined in MEF 20)
    • An automated implementation model allowing UNI-C to retrieve EVC status and configuration information from UNI-N
    • Enhanced UNI attributes
    • Additional fault management and protection functionality
    • UNI Type 2.1 and 2.2 are defined
      • Backward compatibility with UNI Type 1
  • UNI Type 3 (Possible future MEF Specification)
    • Allows the UNI-C to request, signal and negotiate EVCs and its associated Service Attributes to the UNI-N. UNI
    • Type 3 is for further study.
functionality and scope of mef 20
Functionality and Scope of MEF 20
  • Ethernet Local Management Interface (E-LMI)
    • Allows UNI-C to retrieve EVC status and service attributes from UNI-N as specified in MEF 16
  • Link OAM (Operation, Administration and Management)
    • Allows customer and service provider to monitor and diagnose the UNI connectivity via Link OAM (link level)
  • Service OAM
    • Allows customer and service provider to monitor and diagnose the UNI connectivity via Service OAM (end-to-end)
  • Protection
    • Capability to protect UNI against port failure via Link Aggregation protocol
  • Enhanced UNI Attributes
    • Such as bandwidth profile per egress UNI, Maximum Transfer Unit size, etc. as defined in MEF 10., MEF 6.1
  • L2CP Handling
    • Governs the passing or filtering of Layer 2 control protocols to the Ethernet Virtual Connections
uni 2 mef 20 implementation options
UNI 2 - MEF 20 Implementation Options

MEF 20 Specifies phased/alternate implementation. This allows quicker time to market and faster time to revenue for all concerned

  • UNI Type 2.1
  • Mandatory Features
    • Backward comp. to UNI Type 1
    • Service OAM
    • Enhanced UNI attributes
    • L2CP handling
  • Optional Features
    • Link OAM
    • Protection
    • E-LMI
  • UNI Type 2.2
  • Mandatory Features
    • Backward comp. to UNI Type 1
    • Service OAM
    • Enhanced UNI attributes
    • L2CP handling
    • Link OAM
    • Protection
    • E-LMI
testing uni types 1 2
Testing UNI Types 1 & 2

Work in Progress / possible projects

MEF 11

User Network Interface (UNI) Requirements and Framework

(Straw Ballot)

Abstract Test Suite for UNI Type 2 Part 2: E-LMI (working Document)

MEF 13

UNI Type 1

Implementation Agreement

MEF 20

UNI Type 2

Implementation Agreement

Abstract Test Suite for UNI Type 2 Part 3: Service OAM

MEF 19

Abstract Test Suite for UNI Type 1

MEF 21

Abstract Test Suite for UNI Type 2 Part 1: Link OAM

Abstract Test Suite for UNI Type 2 Part 4: Protection

Abstract Test Suite for UNI Type 2 Part 5: Enhanced UNI Attributes

  • First Testing of MEF 20 is specified in MEF 21
  • Thorough testing is reflected in large number of test cases
  • Further Test projects are in preparation
  • E-NNI will leverage MEF 21 test cases
  • MEF Certification will be decided in due course

Abstract Test Suite for UNI Type 2 Part 6: L2CP Handling

global interconnect e nni is a key element
Global Interconnect: E-NNI is a Key element

UNI

UNI

  • External Network to Network Interface (E-NNI)
    • A reference point where 2 Service Providers meet in support of specified MEF Services
  • Supports
    • Multiple Carrier Ethernet networks and services, management, QoS , etc.
    • Supports simple interconnect and tunneling
  • Impact on the Industry
    • Creates ubiquitous service level network for large and mid-size businesses
    • Generates new worldwide business opportunities for service providers at lower cost
    • Brings new product and revenue opportunities for vendors

E-NNI

UNI

UNI

Carrier B

network

Ethernet Virtual Connection

Carrier A

network

Reference Point

e nni phase i
E-NNI Phase I

In Scope:

E-LINE and E-LAN services (but not E-TREE)

Multiple CENS

Inc. multiple E-NNIs or links between two CENs

E-NNI protection (but not End-to-End service protection)

Customers & SP must provide loop-free connectivity

End-to-End OAM and QoS

Inc. traffic “coloring” via IEEE PCPs or IETF DSCPs

Service Frame delineation via IEEE 802.1

No S-Tag or single S-Tag

e nni attributes
Service

Type

MTU

Endpoint

Service Mux

Tag ID/CoS Preservation

Link

Rate

L2CPs

E-NNI Attributes

Similar attribute structure as current MEF specifications

E-NNI Attributes

Basic

OAM

Protection

QoS

  • BandwidthProfiles
    • By EI
    • By EVC
    • By PCP
    • By DSCP
  • Performance
    • Delay / Jitter
    • Loss
    • Availability
  • Link OAM
    • IEEE 802.3ah
  • Service OAM
    • IEEE 802.1ag & ITU-T Y.1731
  • Link Protection
    • IEEE 802.3ad (LAG)
  • Service Protection
    • IEEE 802.1D (STP/MSTP)
e nni constructs putting it all together
E-NNI Constructs: Putting it all together

Access Network Provider

Provides CEVC1 connection between Subscriber UNI1 (RUNI) and VUNI1 at E-NNI1 with Transport Network Provider

Transport Network Provider

Provides CEVC2 connection between E-NNI1 (VUNI2) and E-NNI2 (VUNI3) with Ethernet Service Provider

Ethernet Service Provider

Provides connection to E-NNI2 with Transport Network Provider

Provides End-to-End Ethernet Service to Subscriber

Provides EVC between UNI1 and UNI2

UNI1

E-NNI2

E-NNI1

UNI2

Terminating Tunnel

Transit Tunnel

EVC

CEVC1

CEVC2

RUNI

VUNI1

VUNI2 and VUNI3

Access Network Provider

Transport Network Provider

E-NNI

Ethernet Service Provider

Subscriber

Subscriber

global interconnect e nni is a key element23
Global Interconnect: E-NNI is a Key element
  • MEF is acutely aware of the impact on the industry – Strong push from the board to release a spec this year
network interface device nid
Network Interface Device (NID)

UNI

E-NNI

UNI

CE

Service Provider Network

Operator Network

CE

NID

NID

  • A device that provides the point of demarcation between an operator and a subscriber
  • UNI-N functions are partitioned between the NID and the Network Edge device
  • Provides the physical interface to the subscriber (fiber, copper)
  • Owned by the Operator / Service Provider
  • managed by Operator / Service Provider
  • Provides fault and performance management for E2E services
  • Complex device
nid types transport nid
NID Types: Transport NID

UNI

E-NNI

Network Edge Device

UNI

CE

Service Provider Network

Operator Network

CE

Service NID

(1) Transport NID

  • All UNI-N is implemented here
  • Transparent Media Converter - Not service or CE-VLAN aware
  • No UNI-N functions – all UNI-N functions handled b Network Edge Device
  • Supports Link OAM only (Across the UNI)
  • No Performance Monitoring
  • Managed

IMPORTANT NOTE

This information is preliminary and is subject to change

nid types service nid
NID Types: Service NID

UNI

E-NNI

Network Edge Device

UNI

CE

Service Provider Network

Operator Network

CE

Service NID

(2) Service NID

  • UNI-N is divided
  • Service / CE-VLAN awareness
  • UNI-N functions are divided with Network Edge Device
  • May support CoS, queues, congestion management
  • May enforce Bandwidth profiles
  • Supports Link OAM and Service OAM
  • No Tunnel Service awareness
  • Managed

IMPORTANT NOTE

This information is preliminary and is subject to change

tunnel tunnel transport hybrid nids
Tunnel / Tunnel + Transport / Hybrid NIDs

(4) Tunnel + Service NID

(5) Hybrid NID

UNI

E-NNI

UNI

CE

Service Provider Network

Operator Network

CE

Service NID

(3) Tunnel NID

(2) Service NID

Tunnel:

  • Tunnel Service / S-VLAN aware
  • Not service / CE-VLAN aware
  • No UNI-N functions – Similar to E-NNI function
  • May enforce Tunnel (Operator’s) Bandwidth profiles
  • Supports Link OAM and SOAM

Tunnel + Service NID

  • Combine Tunnel + Service in One box

Hybrid NID

  • Tunnel + Service + managed by both Operator and Service Provider

IMPORTANT NOTE

This information is preliminary and is subject to change

global services directory summary
Global Services Directory Summary
  • MEF worked with Heavy Reading to develop database of Ethernet Service Providers worldwide
    • Identifies Carrier Ethernet services by city, country, and service application
    • Four phase project to:
      • Cover MEF Service Providers with basic service and location information - Now
      • Add more service providers and allow real time updates via Service Provider back-end
      • Provide in-depth service information,
      • Non-MEF Service Providers (TBD)
global services directory summary31
Global Services Directory Summary
  • Business Users
    • Find Carrier Ethernet services anywhere in the world.
  • Service Providers
    • Find a partner to build a global Carrier Ethernet service.
  • Featuring
    • Free access to interactive map driven system
    • Latest info on available services globally, locally
    • http://www.metroethernetforum.org/gsd
global services directory summary32
Global Services Directory Summary
  • Business Users
    • Find Carrier Ethernet services anywhere in the world.
  • Service Providers
    • Find a partner to build a global Carrier Ethernet service.
  • Featuring
    • Free access to interactive map driven system
    • Latest info on available services globally, locally
    • http://www.metroethernetforum.org/gsd
wholesale access interconnection group waig
Wholesale Access Interconnection Group (WAIG)

Charter:

Define Standard template and procedure for ordering wholesale Ethernet services between service providers

Objectives:

To enable efficient communication of network capabilities between Service Providers and prospective wholesale partners

Scope Expanded:

Global Interconnection Group (GIG?)

waig template
WAIG Template
  • Physical Customer Interfaces
    • For different services (UNI and NNI) provide physical interface options (fiber, copper, rates etc.)
  • Path Diversity and Protection
    • For topology and protocol options (xSTP etc.)
  • Ethernet Frames
    • Frame type and size options
    • Service multiplexing (EVCs etc.) options
  • Performance and Class of Service (CoS) Requirements
    • CoS options
    • Performance per CoS options
  • Service Technology Questions
    • Service / BW Profile options
    • Frame tagging options
waig template cont
WAIG Template (cont.)
  • Network Management
    • Maintenance Points for Fault, Performance OAM options
    • OAM Protocol options
    • Administrative options
    • Wholesale partner administrative and logistical options
  • Performance and SLA Reporting Capability
    • On and Off-line performance reporting options
  • Security
    • Threat detection and defense options
  • Connection Admission Control (CAC) Rules
    • CoS traffic handling
  • EVC and NNI Speeds
    • Throughput information
global waig status
Global WAIG Status
  • Template is available to MEF member companies
  • Streamlined template draft published – 1Q09 MEF meeting (San Francisco)
  • Early adaptors can start using Templates - Now
three phases of carrier ethernet37
Three Phases of Carrier Ethernet

Phase 1:Architecture and Definition

First specifications defined

Implementation begins

Definitions of Ethernet services

Carrier Ethernet defined

Phase 2: Implementation and Certification

MEF Certification Program

Large scale deployment begins

Carrier Ethernet extends from Metro

Phase 3: Global Interconnect

Specification for Carrier Ethernet Interconnect

Specifications for automated management of UNI

Service OAM fault and performance specifications

Class of Service alignment

Operational tools: WAIG, GSD

Phases Timeline

2001-3

2004

2005-7

2008-10

2011-14

brings all interconnect initiatives into a single market focus

Carrier Ethernet Milestones

First MEF specs

Carrier Ethernet Defined

Global Interconnect

UbiquityRevenues>$30bn

37

summary carrier ethernet s evolution
Summary - Carrier Ethernet’s “Evolution”

2009, Carrier Ethernet We are here

Finish E-NNI spec

Finish NID spec

Refine GS Directory

– add SPs

Start use of WAIG Templates

Global

OOF WAN

WAN

MAN

LAN

thank you

Thank You

Presentations are available

atwww.metroethernetforum.org

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