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MEF Report: User to Network Interface UNI NetworktoNetwork Interfaces ENNI and Global Interconnectio

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MEF Report: User to Network Interface (UNI) Network-to-Network ... Arie Goldberg, CEO, Omnitron System Technology, Inc. Board Member, Metro Ethernet Forum ... – PowerPoint PPT presentation

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Title: MEF Report: User to Network Interface UNI NetworktoNetwork Interfaces ENNI and Global Interconnectio


1
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
2
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

3
Carrier Ethernet Challenges and Services
4
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
5
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

6
The MEF 5-Attributes of 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
Carrier Ethernet Attributes
  • Standardized Services
  • Scalability
  • Service Management
  • Reliability
  • Quality of Service

7
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
CPE
UNI
8
Global Services crossing carrier boundaries
9
Carrier Ethernets Evolution
  • 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

10
Three Phases of Carrier Ethernet
2004
2001-3
2005-7
2008-10
Phases Timeline
2011-14
Carrier Ethernet Defined
First MEF specs
Global Interconnect
UbiquityRevenuesgt30bn
Carrier Ethernet Milestones
10
11
Carrier Ethernet Networks DemarcationUNI and
E-NNI
12
Carrier Ethernet Demarcation Points
Access Network Provider
E-NNI
Transport Network Provider
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

13
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

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
14
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

15
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.

16
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

17
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

18
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 20 UNI Type 2 Implementation Agreement
MEF 13 UNI Type 1 Implementation Agreement
Abstract Test Suite for UNI Type 2 Part 3
Service OAM
MEF 21 Abstract Test Suite for UNI Type 2 Part 1
Link OAM
MEF 19 Abstract Test Suite for UNI Type 1
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
19
Global Interconnect E-NNI is a Key element
UNI
UNI
E-NNI
UNI
UNI
Carrier B network
Ethernet Virtual Connection
Carrier A network
Reference Point
  • 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

20
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

21
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
  • Service
  • Type
  • MTU
  • Endpoint
  • Service Mux
  • Tag ID/CoS Preservation
  • Link
  • Rate
  • L2CPs
  • 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)

22
E-NNI Constructs Putting it all together
RUNI
VUNI1
VUNI2 and VUNI3
Access Network Provider
Transport Network Provider
E-NNI
Ethernet Service Provider
Subscriber
Subscriber
  • 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

23
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

24
NID Project
25
Network Interface Device (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

26
NID Types Transport NID
  • 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
27
NID Types Service NID
  • 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
28
Tunnel / Tunnel Transport / Hybrid NIDs
  • Tunnel
  • Tunnel Service / S-VLAN aware
  • Not service / CE-VLAN aware
  • No UNI-N functions Similar to E-NNI function
  • May enforce Tunnel (Operators) 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
29
MEF Global Interconnect Tools
February 2009
30
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)

31
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

32
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

33
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?)
34
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

35
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

36
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

37
Three Phases of Carrier Ethernet
2004
2001-3
2005-7
2008-10
Phases Timeline
2011-14
brings all interconnect initiatives into a single
market focus
Carrier Ethernet Defined
First MEF specs
Global Interconnect
UbiquityRevenuesgt30bn
Carrier Ethernet Milestones
37
38
Summary - Carrier Ethernets Evolution
Finish E-NNI spec Finish NID spec Refine GS
Directory add SPs Start use of WAIG Templates
Global OOF WAN
WAN
MAN
LAN
39
Thank You
Presentations are available atwww.metroethernetfo
rum.org
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