Carrier Ethernet Services
MEF Reference Presentation
November 2011
1
1
MEF Reference Presentations
• Intention
– These MEF reference presentations are intended to
give general overviews of the MEF work and have
been approved by the MEF Marketing Committee
– Further details on the topic are to be found in related
specifications, technical overviews, white papers in
the MEF public site Information Center:
http://metroethernetforum.org/InformationCenter
• Notice
© The Metro Ethernet Forum 2011.
Any reproduction of this document, or any portion thereof, shall contain the
following statement: "Reproduced with permission of the Metro Ethernet Forum."
No user of this document is authorized to modify any of the information contained
herein.
2
Purpose
• Carrier Ethernet Services Overview
– This presentation defines the MEF Ethernet Services that
represent the principal attribute of a Carrier Ethernet Network
– This presentation is intended to give a simple overview as a
grounding for all other MEF documents
3
Topics
• What is Carrier Ethernet?
– Architecture
– Carrier Ethernet Terminology
– The UNI, NNI, MEN, Ethernet Virtual Connections (EVCs)
• EVCs and Services
• E-Line Services
– Ethernet Private Line, Ethernet Virtual Private Line
• E-LAN Services
– Multipoint Services
• E-Tree Services
• Service Attributes
•
•
•
•
– Service Parameters, Bandwidth Profiles, Traffic Management
Circuit Emulation Services
Carrier Ethernet Architecture for Cable
Carrier Ethernet Class of Service
Service Examples
March 2007
4
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
5
What is Carrier Ethernet?
• Question:
– “Is it a service, a network, or a technology?”
• Answer for an end-user
– It’s a Service defined by 5 attributes
• Answer for a service provider
– It’s a set of certified network elements that
connect to transport the services offered to the
customer
– It’s a platform for value added services
– A standardized service for all users
6
Carrier Ethernet Architecture
“In a Carrier Ethernet network, data is transported across Point-to-Point and
Multipoint-to-Multipoint Ethernet Virtual Connections (EVCs) according to the
attributes and definitions of the E-Line, E-LAN and E-Tree services”
EVC
End User
Subscriber
Site
UNI
CE
ETH
UNI-C
ENNI
Service Provider 1
Carrier Ethernet Network
ETH
UNI-N
End User
Subscriber
Site
ETH
ENNI-N
UNI
Service Provider 2
Carrier Ethernet Network
ETH
ENNI-N
ETH
UNI-N
CE
ETH
UNI-C
Ethernet Services (“Eth”) Layer Terminology
EVC:
UNI:
UNI-C:
UNI-N
ENNI:
ENNI-N:
Ethernet Virtual Connection
User Network Interface. the physical demarcation point between the
responsibility of the Service Provider and the responsibility of the Subscriber
UNI customer-side processes
UNI network-side processes
External Network to Network Interface; the physical demarcation point
between the responsibility of the two Service Providers
ENNI Processes
7
Carrier Ethernet Architecture
Data moves from UNI to UNI across "the network" with a layered
architecture.
ETH Layer
Ethernet Services Layer
(e.g., IP, MPLS, PDH, etc.)
(Ethernet Service PDU)
TRAN Layer
Management Plane
Application Services Layer
Control Plane
APP Layer
Data Plane
When traffic moves between ETH domains is does so at the TRAN
layer. This allows
Carrier Ethernet traffic to be
agnostic to the networks
that it traverses.
Transport Services Layer
(e.g., IEEE 802.1, SONET/SDH, MPLS)
8
MEF Carrier Ethernet Terminology
• The User Network Interface (UNI)
– The UNI is always provided by the Service Provider
– The UNI in a Carrier Ethernet Network is a physical Ethernet Interface at
operating speeds 10Mbs, 100Mbps, 1Gbps or 10Gbps
• Ethernet Virtual Connection (EVC)
– Service container
– Connects two or more subscriber sites (UNI’s)
– An association of two or more UNIs
– Prevents data transfer between sites that are not part of the
same EVC
– Three types of EVCs
• Point-to-Point
• Multipoint-to-Multipoint
• Rooted Multipoint
– Can be bundled or multiplexed on the same UNI
– Defined in MEF 10.2 technical specification
9
Carrier Ethernet Terminology
• UNI Type I
– A UNI compliant with MEF 13
– Manually Configurable
• UNI Type II
–
–
–
–
Supports E-Tree
Support service OAM, link protection
Automatically Configurable via E-LMI
Manageable via OAM
• Network to Network Interface (NNI)
– Network to Network Interface between distinct MEN operated by
one or more carriers
– An active project of the MEF
• Metro Ethernet Network (MEN)
– An Ethernet transport network connecting user end-points
(Expanded to Access and Global networks in addition to the
original Metro Network meaning)
10
Carrier Ethernet Service Types
E-Line Service Type for
Features
•
•
•
•
•
•
•
•
Low latency
Predictable QoS
1 mbps to 10 gbps
Standardized
Reliable
Manageable
Optimal Line Usage
Low cost
Point-to-Point EVC
UNI
• Virtual Private Lines (EVPL)
• Ethernet Private Lines (EPL)
• Ethernet Internet Access
UNI
E-LAN Service Type for
Multi-point to
Multi-point EVC
UNI
• Multipoint L2 VPNs
• Transparent LAN Service
• Multicast networks
UNI
E-Tree Service Type for
• Rooted multi-point L2 VPNs
• Broadcast networks
• Telemetry networks
UNI
UNI
Rooted
Multipoint EVC
UNI
E- Access Service Type* for
UNI
Point-to-Point EVC
ENNI
• Wholesale Access Services
UNI
• Access EPL
Carrier Ethernet
• Access EVPL
Service Provider
UNI
Carrier Ethernet
Access Network
E-Access
* Technical Specification due for completion 1/12. All specifications subject to change until approved.
11
Services Using E-Line Service Type
Ethernet Private Line (EPL)
• Replaces a TDM Private line
• Port-based service with single service (EVC) across
dedicated UNIs providing site-to-site connectivity
• Typically delivered over SDH (Ethernet over SDH)
• Most popular Ethernet service due to its simplicity
Storage
Service
Provider
UNI
CE
UNI
CE
UNI
Carrier Ethernet
Network
ISP
POP
Internet
UNI
Point-to-Point EVCs
CE
12
Services Using E-Line Service Type
Ethernet Virtual Private Line (EVPL)
• Replaces Frame Relay or ATM L2 VPN services
– To deliver higher bandwidth, end-to-end services
• Enables multiple services (EVCs) to be delivered over single physical
connection (UNI) to customer premises
• Supports “hub & spoke” connectivity via Service Multiplexed UNI at hub site
– Similar to Frame Relay or Private Line hub and spoke deployments
Service
Multiplexed
Ethernet
UNI
UNI
UNI
CE
Carrier Ethernet Network
CE
UNI
CE
Point-to-Point EVCs
13
Services Using E-LAN Service Type
• EP-LAN: Each UNI dedicated to the EP-LAN service. Example
use is Transparent LAN
• EVP-LAN: Service Multiplexing allowed at each UNI. Example
use is Internet access and corporate VPN via one UNI
Ethernet Virtual
Private LAN
example
Ethernet Private LAN
example
Internet
ISP POP
CE
UNI
UNI
Carrier Ethernet
Network
CE
Point-to-Point EVC
(EVPL)
CE
UNI
Multipoint-to-Multipoint
EVC
CE
CE
UNI
UNI
Carrier
Ethernet
Network
UNI
CE
UNI
CE
Multipoint-to-Multipoint
EVC
14
Services Using E-Tree Service Type
EP-Tree and EVP-Tree: Both allow root - root and root - leaf
communication but not leaf - leaf communication.
• EP-Tree requires dedication of the UNIs to the single EP-Tree
service
• EVP-Tree allows each UNI to be support multiple simultaneous
services at the cost of more complex configuration that EP-Tree
Ethernet Virtual Private
Tree example
Ethernet Private Tree
example
Carrier Ethernet
Network
UNI
Leaf
Leaf
Root
CE
UNI
CE
UNI
Leaf
Rooted-Multipoint EVC
Rooted-Multipoint
EVC
UNI
CE
UNI
Root
CE
UNI
CE
Multipoint to
Multipoint EVC
UNI
UNI
CE
CE
15
Delivered Over Wide Variety of Access Media
Carrier Ethernet provides consistent services delivered to users
connected over the widest variety of access networks
Ethernet
Ethernet
Ethernet
Direct Fiber
COAX
WDM
Fiber
MSO/
Cable
Etherne
t
Direct Fiber
Ethernet 100Mbps/1Gbps/10 Gbps
Service
Provider 1
Packet
Wireless
SONET/ SDH
Ethernet
Etherne
t
PON
Fiber
Ethernet
Ethernet User to Network Interface (UNI)
Ethernet Network Network Interface (NNI)
Service
Provider 2
Bonded
T1/E1
Ethernet
WiMax
DS3/E3
TDM
Ethernet
Ethernet
Ethernet
… and across a wide variety of backhaul transport technologies
16
Service Attributes
• EVC Service Attributes (Defined in MEF 10.2)
– Fundamentals of enabling the value of Carrier Ethernet:
• Virtual Connections
• Bandwidth profiles
• Class of Service Identification
– Service Performance
•
•
•
•
Frame Delay (Latency)
Inter Frame Delay Variation
Frame Loss Ratio
Availability
• UNI Service Attributes
– Details regarding the UNI including:
• Physical interface capabilities
• Service multiplexing capability
• C-VLAN bundling capability
17
Bandwidth Profiles & Traffic Management (1)
Bandwidth Profiles per EVC & per Class of Service Governed by 6 Parameters
– CIR (Committed Information Rate)
• CIR defines assured bandwidth
• Assured via bandwidth reservation, traffic engineering
– EIR (Excess Information Rate)
• EIR bandwidth is considered ‘excess’
• EIR improves the network’s Goodput
• Traffic dropped at congestion points in the network
EVC-2
EVC-1
– CBS/EBS (Committed/Excess Burst Size in bytes)
• Higher burst size results in improved performance
Color Mode (“Color Aware” or “Color Blind”)
– When set as “Color Aware” governs discard eligibility
• Marking typically done at ingress
• Green – Forwarded frames – CIR conforming traffic
• Yellow – Discard Eligible frames – Over CIR , within EIR
• Red – Discarded frames – Exceeds EIR
EIR
EVC-3
Coupling Flag (set to 1 or 0) governs which frames are classed as yellow
18
Bandwidth Profiles & Traffic Management (2)
• Bandwidth Profiles can divide bandwidth per EVC over a single UNI
– Multiple services over same port (UNI)
– CoS markings enable the network to determine the network QoS to provide
Port-based
Port/VLAN-based
EVC1
EVC1
UNI
EVC2
Ingress
Bandwidth Profile
Per Ingress UNI
UNI
EVC3
Ingress Bandwidth
Profile Per EVC1
EVC2
Ingress Bandwidth
Profile Per EVC2
EVC3
Ingress Bandwidth
Profile Per EVC3
Port/VLAN/CoS-based
UNI
EVC1
CE-VLAN CoS 6
Ingress Bandwidth Profile Per CoS ID 6
CE-VLAN CoS 4
Ingress Bandwidth Profile Per CoS ID 4
CE-VLAN CoS 2
Ingress Bandwidth Profile Per CoS ID 2
EVC2
19
Further Technical information
For information on MEF Technical Specifications visit metroethernetforum.org
Key MEF Carrier Ethernet Services Specifications
Carrier Ethernet services attributes and definitions
MEF 6.1
MEF 10.2
MEF 26
Metro Ethernet Services
Definitions Phase 2
Ethernet Services Attributes
Phase 2
External Network Network
Interface (ENNI) Phase 1
Carrier Ethernet Services Certification Test Suites
MEF 9
MEF 14
Abstract Test Suite for Ethernet
Services at the UNI
Abstract Test Suite for Traffic
Management phase 1
MEF Certification
Other important MEF
technical specifications
– MEF 20 UNI Type 2
Implementation Agreement
– MEF 23 Class of Service
Implementation Agreement
– MEF 22 Mobile Backhaul
Implementation Agreement
20
Circuit Emulation Services over Carrier Ethernet
• Enables TDM Services to be transported
across Carrier Ethernet network, recreating the TDM circuit at the far end
– Runs on a standard Ethernet Line Service
(E-Line)
Carrier Ethernet Network
TDM Circuits
(e.g. T1/E1 Lines)
Circuit Emulated
TDM Circuits
(e.g. T1/E1 Lines)
TDM Traffic
21
Carrier Ethernet Architecture for Cable
Operators
Headend
Analog
TV Feeds
Hub
CE
E-Line
Internet
Access
E-LAN
Home Run
Fiber
D2A
Video
Server
EQAM
Ad
Insertion
CMTS
A2D
Business Services
over Fiber (GigE)
UNI
Node
EoCoax
EoHFC
CE
UNI
Switched
Fiber
Digital TV, VOD,
Interactive TV,
Gaming
Optical Metro Ring Network
Managed Business
Applications
E-NNI
Hub
Another MSO or carrier
Network
Voice/Video
Telephony Voice
gateway
Business
Park
Business
Services
EoDOCSIS
(future)
UNI
EoSONET
/SDH
Wireless
Plant
Extension
PON
E-Line
E-LAN
CE
WDM
Leased
T1/DS3
EoT1/DS3
UNI
CE
UNI
CE
Greenfield Residential & Business Services
22
New Technical Work
23
23
MEF Technical Update
Two New Specifications (Oct 2011)
Standards
• MEF 32 OVC Service Level Specifications
• MEF 26.0.2 Protection Across External Interface
Six MEF new specs formalized
at Jan ‘12 meeting include
three related projects:
Carrier Ethernet Class of Service
Class of Service
Phase 2
Performance
Objectives
per CoS ,etc.
Performance
Objectives
per CoS ,etc.
E-Access Service Type
Standardizing buying and selling of
wholesale CE
Covered elsewhere
Mobile Backhaul Phase 1
Mobilefor
Backhaul
Phase 2CE
New definitions
implementing
in 4G/LTE
New definitions
for implementing CE
in 4G/LTE
24
Carrier Ethernet Class of Service
MEF 23 Original CoS Specification
25
25
Background: CoS Phase I
MEF 23 CoS Implementation Agreement - Phase 1
• Specifies a 3 CoS Model and allows for subsets and extensions
• Provides Guidance for interconnections of Carrier Ethernet networks
implementing Class of Service Models
• PCP/DSCP* values, as part of the Class of Service ID (CoS ID)
– Recommended for the UNI while PCP values are mandatory at the
ENNI to facilitate interconnection.
– PCP/DSCP mandatory values are subset of the total value
Guidance on Bandwidth Profile constraints
– Includes consideration for frame disposition (i.e., “Color”)
Performance Attributes
– Introduced based on FD, IFDV/FDV and FLR – not quantified
* Note: PCP: Priority Code Point : 3 bit Priority in IEEE 802.3 datagram frames.
DSCP: 6-bit Differentiated Services Code Point in IP frames
26
Mapping the CoS Model at an ENNI
Common CoS lexicon between the Service Providers on either side of the standardized
Ethernet interconnect facilitates CoS alignment:
• Providers are still free to implement a subset or superset of MEF CoS definitions
• MEF 23 specifies interoperability between CE Networks using up to 3 MEF CoS
UNI
CE
Service Provider 1
ENNI
Carrier Ethernet
Network
Without MEF CoS IA: MENs
requires bilateral agreements at
each ENNI. Customers may not get
consistent QoS treatment
Service Provider 2
Carrier Ethernet
Network
CoS Plus
CoS Square
CoS Heart
With MEF CoS IA: MENs remark
frames on egress of an ENNI to
align based on standardized MEF
CoS indications.
CE
CoS Rock
CoS
Mapping?
CoS Paper
CoS Scissors
CoS Coal
CoS Plus
UNI
CoS High*
CoS Rock
CoS Square
CoS Heart
CoS Coal
CoS Medium*
CoS Low*
CoS Paper
CoS Scissors
* Each CoS Label associated with particular CPO
27
Introducing MEF 23.1
Carrier Ethernet Class of Service – Phase 2
28
28
Class of Service Session Phase II
• Intention
– Simplify and standardize the way Carrier Ethernet services are
implemented to support a wide variety of applications
– Provide a rich set of definitions for performance objectives
deployed in local, regional, national and worldwide locations
– Provide necessary service mapping at the connection points
between providers
• Impact for providers
– cost savings, new revenue opportunities with shorter time to turn
up
• MEF 23.1 adds functionality
– Classes of Service, quantified QoS measurement, new attributes
and definitions, common terminology
29
MEF Class of Service Extensions (MEF 23.1)
• Implementation Guidance for the Industry
–
–
Enables performance improvement and reduced costs of Mobile
Backhaul & key business applications
Defines Class of Service Performance Objectives (CPOs) by
application type for Mobile Backhaul networks and end-to-end apps
• CPOs include all relevant metrics by type and distance
New Performance Tiers:
• Metro (250km),
• Regional (1,200km),
• Continental (7,000km),
• Global/Intercontinental (27,500 km)
Applies to UNI-UNI, ENNI-UNI, ENNI-ENNI virtual connections
30
MEF Class of Service Extensions
• Implementation and Measurement
–
–
–
–
–
Extends existing Bandwidth Profile and Traffic management
Quantifies Delay, Delay Variation, Frame Loss Ratio, availability etc.
Adds Mean Frame Delay and Frame Delay Range
Defines CPOs for distance related attributes as performance tiers
Used by new Mobile Backhaul Project
Port/VLAN/CoS-based
Example of bandwidth profiles for
typical Mobile Backhaul with 4
classes of service.
Each CoS has one way
performance metrics objectives
CoS 6
100Mbps
UNI (port)
EVC1
UNI
CoS 4
CoS 2
EVC2
2 Mbps CIR
for control
10 Mbps CIR
for VoIP
20Mbps
CIR for VPN
data traffic
68Mbps for
Internet Access
31
Class of Service Phase 2 (MEF 23.1)
• Add new performance attributes for Mean Delay and Delay
Range introduced in MEF 10.2
• Quantified CoS performance objectives and associated
parameters for point to point EVCs and OVCs
• Bandwidth profile parameter constraints
Quantitative Delay, Delay
Variation,
Loss objectives
Quantitative Delay, Delay
Variation,
Loss objectives
MEN A
ENNI
MEN B
UNI
OVC
Quantitative Delay, Delay
Variation,
Loss objectives
MEN A
UNI
UNI
OVC
UNI
EVC
32
Delivering SLAs
Specify the service to be provided
• Definition of the service at the UNI (MEF 20, 6.1)
• Key SLA/SLS aspects
• CoS Identification and Bandwidth profile – MEF 10.2
• OVC SLA Amendment to ENNI spec – 26.0.3
• CoS Identification values & Performance Objectives– MEF
23.1 (CoS IA Phase 2)
Construct end-to-end EVC
• New MEF 23.1 enhancements may be applied to an EVC or segments of an
EVC, such as an OVC for point-to-point
• Integrate OVCs joining UNI to ENNI, ENNI to ENNI, ENNI to UNI
• Map EVC attributes to OVC attributes
Turn up and monitor the new service
• Measuring – SOAM Performance Monitoring (in progress)
33
Three CoS Model Using PCP or DSCP per Frame
CoS and Color Identifiers1
C-Tag PCP
CoS
Label
PHB (DSCP)
S-Tag PCP Without DEI
Supported
S-Tag PCP
With DEI
Supported
Color
Green
Color
Yellow
Color
Green
Color
Yellow
Color
Green
Color
Yellow
H
5
N/S
in Phase
2
EF (46)
N/S
in Phase 2
5
N/S
in Phase 2
5
M
3
2
AF31 (26)
3
2
3
L
1
0
1
0
1
AF32 (28) or
AF33 (30)
AF12 (12), AF13
AF11 (10)
(14) or Default (0)
1
Full CoS Identifier includes EVC or OVC End Point. Table specifies only the PCP or DSCP values to
be used with EVC or OVC End Point to specify a CoS ID. EVC and OVC End Point indication is not
constrained by CoS IA. EF: Expedited Forwarding. AF Assured Forwarding
DRAFT
34
Example: Full C-Tag PCP Mappings
Example of full mappings of PCP at a UNI for multi-CoS EVCs that support
all 3 MEF CoS Labels and no additional CoS Names.
• This may be a common approach in handling low latency traffic based on
a PCP marking – particularly when using (for instance) IP Routers.
MEF CoS
Combination
Supported on
EVC
{H + M + L}
{H + M}
{H + L}
{M + L}
PCP Mapping per Class of Service
- Color Blind Mode
H
5
5
5
N/A
M
2-4, 6, 7
0-4, 6, 7
N/A
2-7
L
0, 1
N/A
0-4, 6, 7
0, 1
Example PCP Mapping for Multi-CoS EVC Supporting Only Standard Classes of Service at UNI – “Router-ApplicationFriendly” mapping
35
Parameters for Performance Metrics
Performance
Metric
FD
MFD
IFDV
FDR
FLR
Availability
High Loss
Interval
Consecutive
High Loss
Interval
Parameter
Name
Percentile (Pd)
Time Interval (T)
Time Interval (T)
Percentile (Pv)
Time Interval (T)
Pair Interval (Dt)
Percentile (Pr)
Time Interval (T)
Time Interval (T)
TBD
TBD
TBD
Parameter Values Parameter Values for Parameter Values
for CoS Label H
CoS Label M
for CoS Label L
99th
99.9th
95th
 Month
 Month
 99.9th
 Month
1sec
99.9th
Month
Month
TBD
TBD
 Month
 Month
99th or N/S1
 Month or N/S1
1sec or N/S1
99th or N/S1
 Month or N/S1
Month
TBD
TBD
 Month
 Month
N/S
N/S
N/S
N/S
N/S
Month
TBD
TBD
TBD
TBD
TBD
MEF 23.1 Table 5: CoS Label High, Medium and Low (H, M and L) Parameter Values
DRAFT
36
Performance Tier 1 CPOs
CoS Label H
Performance
Metric
CoS Label M
CoS Label L1
Pt-Pt
MultiPoint
Pt-Pt
MultiPoin
t
FD (ms)
10
TBD
20
TBD
37
TBD
MFD (ms)
7
TBD
13
TBD
28
TBD
IFDV (ms)
3
TBD
8 or N/S 2
TBD
N/S
TBD
FDR (ms)

TBD
TBD
N/S
TBD
FLR (percent)
.01% i.e.
10-4
TBD
.01% i.e.
10-4
TBD
.1% i.e.
10-3
TBD
Availability
TBD
TBD
TBD
TBD
TBD
TBD
High Loss Interval
TBD
TBD
TBD
TBD
TBD
TBD
Consecutive High
Loss Interval
TBD
TBD
TBD
TBD
TBD
TBD
DRAFT
10 or N/S
2
Pt-Pt
MultiPoin
t
Applicability
At least one of either
FD or MFD required
At least one of either
FDR or IFDV
required
MEF 23.1 Table 6: Performance Tier 1 (Metro) CoS Performance
Objectives
37
Performance Tier 2 CPOs
CoS Label H
MultiPoi
Pt-Pt
nt
CoS Label M
MultiPoi
Pt-Pt
nt
CoS Label L1
MultiPoi Applicability
Pt-Pt
nt
FD (ms)
 25
TBD
 75
TBD
 125
TBD
MFD (ms)
 18
TBD
 30
TBD
 50
TBD
IFDV (ms)
 8
TBD
TBD
N/S
TBD
FDR (ms)
 10
TBD
TBD
N/S
TBD
FLR (percent)
.01%
i.e., 10-4
TBD
TBD
TBD
TBD
 .1%
i.e., 10-3
TBD
TBD
TBD
 40 or
N/S 2
 50 or
N/S 2
 .01%
i.e., 10-4
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
Performance
Metric
Availability
High Loss
Interval
Consecutive
High Loss
Interval
At least one of
either FD or MFD
required
At least one of
either FDR or
IFDV required
TBD
MEF 23.1 Table 7: Performance Tier 2 (Regional) CoS Performance Objectives
DRAFT
38
Per Application CPOs
• Covers the following applications
VoIP Data
Video Conferencing Data
VoIP and Video conference Signaling
IPTV Data Plane, IPTV Control Plane
Streaming Media
Interactive Gaming
Circuit Emulation
Telepresence: includes: Remote Surgery (Video)
Financial/Trading
CCTV
Database (Hot Standby), (WAN Replication), (Client/Server)
T.38 Fax
SANs (Synchronous and Asynchronous Replication)
Network Attached Storage
Text and Graphics Terminals
Point of Sale Transactions
Mobile Backhaul H, M, L
Best Effort Includes: Email, Store/Forward Fax, WAFS, Web Browsing, File
Transfer (including hi-res image file transfer), E-Commerce
39
Per Application CPOs (Summary)
Application
VoIP Data
Video Conferencing Data
VoIP and Videoconf Signaling
IPTV Data Plane
IPTV Control Plane
Streaming Media
Interactive Gaming
Circuit Emulation
Telepresence, includes:
Remote Surgery (Video)
Financial/Trading
CCTV
Database (Hot Standby)
Database (WAN Replication)
Database (Client/Server)
T.38 Fax
SANs (Synchronous Replication)
SANs (Asynchronous Replication)*
Network Attached Storage
Text and Graphics Terminals
Point of Sale Transactions
Best Effort, includes: Email, Store/Forward Fax, WAFS, Web Browsing,
File Transfer (including hi-res image file transfer), E-Commerce
Mobile Backhaul H
Mobile Backhaul M
Mobile Backhaul L
FD
125 ms pref
375 ms limit
Pd = 0.999
125 ms pref
375 ms limit
Pd = 0.999
Not specified
125 ms
Pd = 0.999
Not specified
Not specified
MFD
100 ms pref
350 ms limit
FLR
3e-2
FDR
50 ms
Pr = 0.999
IFDV
40 ms
Pv = 0.999
100 ms pref
350 ms limit
1e-2
50 ms
Pr = 0.999
40 ms
Pv = 0.999
250 ms pref
100 ms
1e-3
1e-3
75 ms
Not specified
1e-3
1e-2
Not specified
50 ms
Pr = 0.999
Not specified
2s
50 ms
25 ms
Pd = .999999
120 ms
Pd = 0.999
Unknown
150 ms (MPEG-4)
200 ms (MJPEG)
Pd=0.999
5 ms
50 ms
Not specified
400 ms,
Pd = 0.999
5 ms
40 ms
Not specified
Not specified
2s
Not specified
40 ms
20 ms
1e-3
1e-6
110 ms
2.5e-4
Not specified
40 ms
Pv = 0.999
Not specified
1.5 s
Pv = 0.99
8 ms
10 ms. Pv = .999, Δt
= 900s, T = 3600s
10 ms
2 ms
Not specified
1e-5
1e-2
Not specified
Not specified
1s
350 ms
1e-5
1e-5
1e-3
3e-2
3.75 ms
30 ms
1s
200 ms
1s
Not specified
10 ms
20 ms
37 ms
7 ms
13 ms
28 ms
1e-4
1e-4
1e-3
1e-3
1e-3
Not
specified
1e-4
1e-4
1e-3
10 ms
15 ms
Pr = .999
40 ms
Pr = 0.999
Unknown
50 ms
Pr = 0.999
Unknown
Not specified
Unknown
Unknown
Not specified
50 ms
Pr = 0.999
1.25 ms
10 ms
Not specified
Not specified
Not specified
Not specified
Unknown
Unknown
Not specified
40 ms
Pv = 0.999
1 ms
8 ms
Not specified
Not specified
Not specified
Not specified
5 ms
10 ms
Not specified
3 ms
8 ms
Not specified
40
Benefits of CoS Alignment, Standardization
Summary
• An important new specification that will accelerate
deployment
• Customers can easily receive the same service
between all points in the world
• Carriers can interconnect with other carriers
automatically without engineering
• Services can rapidly roll out worldwide
• Service calls diminish when service performance is
universally predictable
• Carrier Ethernet applications are tuned to work better
because the underlying service is better understood
41
Example Uses of Services
42
Examples for EPL
• Simple configuration
Internet
• “The port to the Internet
it is un-trusted”
Branch
• “The port to the branches
it is trusted”
• No coordination with MEN
SP for HQ to branch
subnets
EPL
• Fractional bandwidth
(Bandwidth Profile) to
minimize monthly service
charges
EPL
Firewall
HQ
Branch
43
Example Use of EVPL
Turbo 2000
Internet Access, Inc.
Service Multiplexing
VLAN 178  Blue
VLAN 179  Yellow
VLAN 180  Green
VLAN 2000  Green
ISP
Customer 3
VLAN 2000  Blue
ISP
Customer 1
VLAN 2000  Yellow
ISP
Customer 2
• Efficient use of ISP router ports
• Easy configuration at ISP customer sites
• This port and VLAN 2000 (or even untagged) to Turbo Internet
44
Example Use of EVP-LAN
Service Multiplexing
C
Credit Check, Inc.
D
A
Instant
Loans, Inc.
EVC1
EVC2
B
Walk In Drive Out
Used Cars, Inc.
• Redundant points of access for critical availability higher layer service
• Efficient use of DDC’s router ports
• IL and Used Cars cannot see each other’s traffic
45
Example Use of EP-Tree
A
Internet for the
Small Guy, Inc.
D
Small Guy Travel
B
EVC1
C
Root
Leaves
Tiny Guy Coffee
Diminutive Guy
Gaming Center
• Efficient use of ISG router port
• One subnet to configure on ISG router
• Simple configuration for the little guys
• Small, Tiny, and Diminutive Guys can’t see each other’s traffic
• Second Root would provide redundant internet access
• Some limits on what routing protocols can be used
46
Example Use of EVP-Tree
Elevator Video Franchises
Leaves
Service Multiplexing
A
Internet for the
Small Guy, Inc.
D
Small Guy Travel
B
EVC1
C
Roots
Leaves
Tiny Guy Coffee
Diminutive Guy
Gaming Center
• Efficient use of ISG router port
• Efficient distribution of elevator video
• Small, Tiny, and Diminutive Guys can’t see each other’s traffic, EV Franchises can’t
see each other’s traffic
• Second Root would provide redundant internet access
• Some limits on what routing protocols can be used
47
Carrier Ethernet in Action
COMPANY
HQ
UNI
Carrier Ethernet Service Provider
Metro Fiber Ethernet Virtual Private Line Services
Application EVPL Profiles, Sample CoS Objectives
Committed
Excess
Frame
Information Information Delay
Rate
Rate
Priority
Frame
Loss
Ratio
0
10 mbps
0
5ms
0.1%
1
100 mbps
0
5ms
0.01%
Telepresence
2
50 mbps
0
25ms
0.1%
Streamed HD
live content
3
40 mbps
0
N/A
0.01%
Content distributed.
Development and
non-real time delivery
4
0
500 mbps
N/A
1%
VoIP calls
Interactive
business and consumer
video programming
Implementation Guidance
• The above bandwidth profiles and related Performance metrics are a small set of those available.
• New MEF Specifications recommend performance objectives based on both distance and application types
Impact for Providers and Enterprises
• Ability to tune Carrier Ethernet services to exactly match wide variety of changing applications requirements
creates a highly responsive network that reacts well to bursts of high priority data.
48
MEF Reference Presentations
MEF Reference Presentations Covering the Principal Work of the MEF
Overview presentation of the
MEF.
Overview presentation of the
Technical Work of the MEF
Carrier Ethernet Services
Overview
Carrier Ethernet User-Network
Interface
Carrier Ethernet Access
Technology Overview
Carrier Ethernet Interconnect
Program.
Carrier Ethernet OAM &
Management Overview
Carrier Ethernet for Mobile
Backhaul
Carrier Ethernet Business
Services
This presentation gives basic and most up-to-date information about the work of the MEF. It also
introduces the definitions, scope and impact of Carrier Ethernet, the MEF Certification programs and
describes the benefits of joining the MEF.
Includes a summary of the specifications of the MEF, structure of the technical committee, work in
progress and relationships with other Industry Standards bodies. For PowerPoint overviews of individual
specifications: click here
This presentation defines the MEF Ethernet Services that represent the principal attribute of a Carrier
Ethernet Network
This presentation discusses the market impact of MEF 20: UNI Type 2 Implementation agreement
This presentation describes how the MEF specifications bring Carrier Ethernet services to the world's
Access networks (with examples of Active Ethernet (Direct Fiber), WDM Fiber, MSO Networks(COAX and
Direct Fiber), Bonded Copper, PON Fiber and TDM (Bonded T1/E1, DS3/E3))
This is the latest presentation from the Carrier Ethernet Interconnect Working Group which acts as a
framework for all presentations given on this topic.
This presentation describes the management framework and the OAM elements for fault and
performance management expressed in terms of the life cycle of a Carrier Ethernet circuit
A comprehensive marketing and technical overview of the MEF's initiative on Mobile Backhaul that has
lead to the adoption of Carrier Ethernet as the technology of choice for 3G and 4G backhaul networks
A comprehensive presentation aimed at business users
A presentation of the MEFs three certification programs: Equipment, Services and Professionals. These
The MEF Certification Programs programs have been a cornerstone of the success of Carrier Ethernet and its deployment in more than 100
countries around the world.
Presentations may be found at http://metroethernetforum.org/Presentations
49
End of Presentation
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