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Carrier Ethernet Services Overview
August 2008
1
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
2
Agenda • What is Carrier Ethernet? • 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 in Access Networks MEF Specifications Service Examples March 2007
3
Carrier Ethernet Defined Carrier Ethernet for the Business s: 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
4
Carrier Ethernet Defined Carrier Ethernet for Service Providers: • A set of certified network elements that connect to transport Carrier Ethernet services for all s, locally & worldwide • Carrier Ethernet services are carried over physical Ethernet networks and other legacy transport technologies
5
What is Carrier Ethernet? • Question: – “Is it a service, a network, or a technology?”
• Answer for an end- – 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 s 6
Carrier Ethernet Terminology • UNI Type I – A UNI compliant with MEF 13 – Manually Configurable
• UNI Type II – 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 end-points (Expanded to Access and Global networks in addition to the original Metro Network meaning)
7
MEF Carrier Ethernet Terminology • The Network Interface (UNI) – The UNI is the physical interface or port that is the demarcation between the customer and the service provider/Cable Operator/Carrier/MSO – 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 Carrier Ethernet Network CE
UNI
CE: Customer Equipment, UNI: Network Interface.
MEF certified Carrier Ethernet products
8
MEF Carrier Ethernet Terminology • 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 – Two types of EVCs • Point-to-Point • Multipoint-to-Multipoint • Rooted Multipoint – Can be bundled or multiplexed on the same UNI – Defined in MEF 10.1 technical specification 9
Carrier Ethernet: Two Service Types Using EVCs E-Line Service type
• E-Line Service used to create – Ethernet Private Lines – Virtual Private Lines – Ethernet Internet Access
Point-to-Point EVC UNI
UNI CE
CE
Carrier Ethernet Network
E-LAN Service type
• E-LAN Service used to create – Multipoint L2 VPNs – Transparent LAN Service – Foundation for IPTV and Multicast networks etc.
CE UNI
Carrier Ethernet Network
UNI
Multipoint-to-Multipoint EVC MEF certified Carrier Ethernet products
CE
UNI: Network Interface, CE: Customer Equipment 10
EVCs and Services
In a Carrier Ethernet network, data is transported across Point-to-Point and Multipoint-to-Multipoint EVCs according to the attributes and definitions of the E-Line and E-LAN services
Point-to-Point EVC UNI
UNI
Carrier Ethernet Network
11
Services Using E-Line Service Type • Ethernet Private Line (EPL) – Replaces a TDM Private line – Dedicated UNIs for Point-to-Point connections – Single Ethernet Virtual Connection (EVC) per UNI – The most popular Ethernet service due to its simplicity Storage Service Provider
UNI CE UNI CE
Carrier Ethernet Network
ISP POP
UNI
Internet
UNI
Point-to-Point EVC CE
12
Services Using E-Line Service Type • Ethernet Virtual Private Line (EVPL) – Replaces Frame Relay or ATM services – s Service Multiplexed UNI (i.e. multiple EVCs per UNI) – Allows single physical connection (UNI) to customer premise equipment for multiple virtual connections Service Multiplexed Ethernet UNI
ISP POP
UNI
Internet
UNI
CE
Carrier Ethernet Network CE
UNI CE
Point-to-Point EVC
CE
13
Services Using E-LAN Service Type • Ethernet Private LAN and Ethernet Virtual Private LAN Services – s dedicated or service-multiplexed UNIs – s transparent LAN services and multipoint Layer 2 VPNs
Service Multiplexed Ethernet UNI UNI
UNI
UNI CE
Carrier Ethernet Network
CE
UNI
Point-to-Multipoint EVC
CE
14
MEF 6.1 Ethernet Services Definitions Phase 2
Service Type
Port-Based (All-to-One Bundling)
VLAN-Based (Service Multiplexed)
E-Line (Point--to (Point to--Point EVC)
Ethernet Private Line (EPL)
Ethernet Virtual Private Line (EVPL)
E-LAN (multipoint--to (multipoint to--multipoint EVC)
Ethernet Private LAN (EP-LAN)
Ethernet Virtual Private LAN (EVP-LAN)
E-Tree (rooted multipoint EVC)
Ethernet Private Tree (EP-Tree)
Ethernet Virtual Private Tree (EVP-Tree)
No change
Modified
New
MEF 6.1 Enhancements • Defines a new service type (E-Tree) in addition to those defined in MEF 6 • Adds four new services – two each to E-LAN and E-Tree
15
Services Using E-Tree Service Type • Ethernet Private Tree (EP-Tree) and Ethernet Virtual Private Tree (EVP-Tree) Services – Provides traffic separation between s with traffic from one “leaf” being allowed to arrive at one of more “Roots” but never being transmitted to other “leaves” – Targeted at multi-host and where traffic must be kept invisible to other s – Anticipated to be an enabler for mobile backhaul Leaf and triple-play infrastructure rather UNI UNI than end- SLAs CE Root Leaf UNI CE
UNI
Leaf
CE UNI
Carrier Ethernet Network CE
See examples at the end of presentation. E-Tree is referenced in MEF 10.1 as Rooted-Multipoint EVC. 16
Carrier Ethernet Architecture (1) Data moves from UNI to UNI across "the network" with a layered architecture.
(e.g., IP, MPLS, PDH, etc.)
Ethernet Services Layer (Ethernet Service PDU)
TRAN Layer
Management Plane
ETH Layer
Application Services Layer Data Plane
APP Layer
Control 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)
17
Carrier Ethernet Architecture (2) Ethernet Services “Eth” Layer Carrier Ethernet Network
Service Provider 1 Subscriber Site I-NNI
UNI
E-NNI
Service Provider 2 Subscriber Site I-NNI
UNI
CE
ETH UNI-C
CE
ETH UNI-N
ETH E-NNI
ETH E-NNI
ETH UNI-N
ETH UNI-C
Ethernet Services Layer Terminology
UNI: Network Interface, UNI-C: UNI-customer side, UNI-N network side NNI: Network to Network Interface, E-NNI: External NNI; I-NNI Internal NNI CE: Customer Equipment MEF certified Carrier Ethernet products
18
Service Parameters • EVC Service Attributes – Details regarding the EVC including – Bandwidth profiles, QoS Assignment and Tagging options – Latency, Delay Variation (Jitter), Frame-loss
• Bandwidth Profiles – – – –
Committed Information Rate Excess Information Rate Rate Enforcement - Shaping and Policing Burst size (window)
19
CIR and EIR Bandwidth Profiles • BW profiles per EVC – CIR – Committed Information Rate • Frame delivery obligation per SLA – EIR – Excess Information Rate • Excess frame delivery allowed – not subject to SLA if available
EIR
– CBS, EBS - size of burst window (ms) for allowed CIR / EIR rates
EVC2
EVC1
2 rate, 3 Color marking Marking typically done at ingress Green – Forwarded frames – CIR conforming traffic Yellow – Discard Eligible frames – Over CIR , within EIR Red – Discarded frames – Exceeds EIR
EVC3
Total UNI BW
20
MEF 10.1 Traffic Management Model
Port-based
Port/VLAN-based
UNI
EVC2
EVC2
Ingress Bandwidth Profile Per EVC1 Ingress Bandwidth Profile Per EVC2
EVC3
Ingress Bandwidth Profile Per EVC3
EVC1
EVC1 Ingress Bandwidth Profile Per Ingress UNI
UNI
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
21
Carrier Ethernet Scope and Reach Bringing vastly extended scalability for business and residential s HD TV TVoD, VoD
Internet
Gaming, Business Backup, ERP
Voice/Video Voice Telephony Gateway Wireless Backhaul
Video Source
Video Source
Broadband mobile data/video
Small/Medium Business
Residential Triple-Play
22
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
23
Carrier Ethernet Architecture for Cable Operators Headend Analog TV Feeds
Hub E-LAN
UNI
Home Run Fiber
D2A
A2D
Business Services over Fiber (GigE)
CE E-Line
Internet Access
Video Server
EQAM
Ad Insertion
CMTS
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
EoDOCSIS (future)
UNI
EoSONET /SDH PON
WDM EoT1/DS3
UNI
CE
Greenfield Residential & Business Services
24
Related MEF Services Specifications
MEF 6.1 Purpose
MEF 10.1
Metro Ethernet Services Definitions Phase II Defines the Ethernet Services (EPL, EVPL, E-Line, ELAN, and E-Tree)
Ethernet Services Attributes Phase 2
Purpose
Defines the service attributes and parameters required to offer the services defined in MEF 6. Updated from Original MEF 10 in October 2006
Audience
Appropriate for equipment vendors, service providers, and business customers, since it provides the fundamentals required to build devices and services that deliver Carrier Ethernet. For Enterprise s it gives the background to Service Level Specifications for Carrier Ethernet Services being offered by their Service Providers and helps to plan Ethernet Services as part of their overall network.
25
Example Uses of Services
26
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
27
Example Use 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 28
Example Use of EVP-LAN
Service Multiplexing
C Deadbeat Detect Credit Check, Inc.
D
A
Instant Cash 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 • ICL and WIDO Used Cars cannot see each other’s traffic
29
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
30
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 31
More at www.MetroEthernetForum.org/presentations.htm
32
August 2008
1
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
2
Agenda • What is Carrier Ethernet? • 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 in Access Networks MEF Specifications Service Examples March 2007
3
Carrier Ethernet Defined Carrier Ethernet for the Business s: 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
4
Carrier Ethernet Defined Carrier Ethernet for Service Providers: • A set of certified network elements that connect to transport Carrier Ethernet services for all s, locally & worldwide • Carrier Ethernet services are carried over physical Ethernet networks and other legacy transport technologies
5
What is Carrier Ethernet? • Question: – “Is it a service, a network, or a technology?”
• Answer for an end- – 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 s 6
Carrier Ethernet Terminology • UNI Type I – A UNI compliant with MEF 13 – Manually Configurable
• UNI Type II – 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 end-points (Expanded to Access and Global networks in addition to the original Metro Network meaning)
7
MEF Carrier Ethernet Terminology • The Network Interface (UNI) – The UNI is the physical interface or port that is the demarcation between the customer and the service provider/Cable Operator/Carrier/MSO – 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 Carrier Ethernet Network CE
UNI
CE: Customer Equipment, UNI: Network Interface.
MEF certified Carrier Ethernet products
8
MEF Carrier Ethernet Terminology • 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 – Two types of EVCs • Point-to-Point • Multipoint-to-Multipoint • Rooted Multipoint – Can be bundled or multiplexed on the same UNI – Defined in MEF 10.1 technical specification 9
Carrier Ethernet: Two Service Types Using EVCs E-Line Service type
• E-Line Service used to create – Ethernet Private Lines – Virtual Private Lines – Ethernet Internet Access
Point-to-Point EVC UNI
UNI CE
CE
Carrier Ethernet Network
E-LAN Service type
• E-LAN Service used to create – Multipoint L2 VPNs – Transparent LAN Service – Foundation for IPTV and Multicast networks etc.
CE UNI
Carrier Ethernet Network
UNI
Multipoint-to-Multipoint EVC MEF certified Carrier Ethernet products
CE
UNI: Network Interface, CE: Customer Equipment 10
EVCs and Services
In a Carrier Ethernet network, data is transported across Point-to-Point and Multipoint-to-Multipoint EVCs according to the attributes and definitions of the E-Line and E-LAN services
Point-to-Point EVC UNI
UNI
Carrier Ethernet Network
11
Services Using E-Line Service Type • Ethernet Private Line (EPL) – Replaces a TDM Private line – Dedicated UNIs for Point-to-Point connections – Single Ethernet Virtual Connection (EVC) per UNI – The most popular Ethernet service due to its simplicity Storage Service Provider
UNI CE UNI CE
Carrier Ethernet Network
ISP POP
UNI
Internet
UNI
Point-to-Point EVC CE
12
Services Using E-Line Service Type • Ethernet Virtual Private Line (EVPL) – Replaces Frame Relay or ATM services – s Service Multiplexed UNI (i.e. multiple EVCs per UNI) – Allows single physical connection (UNI) to customer premise equipment for multiple virtual connections Service Multiplexed Ethernet UNI
ISP POP
UNI
Internet
UNI
CE
Carrier Ethernet Network CE
UNI CE
Point-to-Point EVC
CE
13
Services Using E-LAN Service Type • Ethernet Private LAN and Ethernet Virtual Private LAN Services – s dedicated or service-multiplexed UNIs – s transparent LAN services and multipoint Layer 2 VPNs
Service Multiplexed Ethernet UNI UNI
UNI
UNI CE
Carrier Ethernet Network
CE
UNI
Point-to-Multipoint EVC
CE
14
MEF 6.1 Ethernet Services Definitions Phase 2
Service Type
Port-Based (All-to-One Bundling)
VLAN-Based (Service Multiplexed)
E-Line (Point--to (Point to--Point EVC)
Ethernet Private Line (EPL)
Ethernet Virtual Private Line (EVPL)
E-LAN (multipoint--to (multipoint to--multipoint EVC)
Ethernet Private LAN (EP-LAN)
Ethernet Virtual Private LAN (EVP-LAN)
E-Tree (rooted multipoint EVC)
Ethernet Private Tree (EP-Tree)
Ethernet Virtual Private Tree (EVP-Tree)
No change
Modified
New
MEF 6.1 Enhancements • Defines a new service type (E-Tree) in addition to those defined in MEF 6 • Adds four new services – two each to E-LAN and E-Tree
15
Services Using E-Tree Service Type • Ethernet Private Tree (EP-Tree) and Ethernet Virtual Private Tree (EVP-Tree) Services – Provides traffic separation between s with traffic from one “leaf” being allowed to arrive at one of more “Roots” but never being transmitted to other “leaves” – Targeted at multi-host and where traffic must be kept invisible to other s – Anticipated to be an enabler for mobile backhaul Leaf and triple-play infrastructure rather UNI UNI than end- SLAs CE Root Leaf UNI CE
UNI
Leaf
CE UNI
Carrier Ethernet Network CE
See examples at the end of presentation. E-Tree is referenced in MEF 10.1 as Rooted-Multipoint EVC. 16
Carrier Ethernet Architecture (1) Data moves from UNI to UNI across "the network" with a layered architecture.
(e.g., IP, MPLS, PDH, etc.)
Ethernet Services Layer (Ethernet Service PDU)
TRAN Layer
Management Plane
ETH Layer
Application Services Layer Data Plane
APP Layer
Control 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)
17
Carrier Ethernet Architecture (2) Ethernet Services “Eth” Layer Carrier Ethernet Network
Service Provider 1 Subscriber Site I-NNI
UNI
E-NNI
Service Provider 2 Subscriber Site I-NNI
UNI
CE
ETH UNI-C
CE
ETH UNI-N
ETH E-NNI
ETH E-NNI
ETH UNI-N
ETH UNI-C
Ethernet Services Layer Terminology
UNI: Network Interface, UNI-C: UNI-customer side, UNI-N network side NNI: Network to Network Interface, E-NNI: External NNI; I-NNI Internal NNI CE: Customer Equipment MEF certified Carrier Ethernet products
18
Service Parameters • EVC Service Attributes – Details regarding the EVC including – Bandwidth profiles, QoS Assignment and Tagging options – Latency, Delay Variation (Jitter), Frame-loss
• Bandwidth Profiles – – – –
Committed Information Rate Excess Information Rate Rate Enforcement - Shaping and Policing Burst size (window)
19
CIR and EIR Bandwidth Profiles • BW profiles per EVC – CIR – Committed Information Rate • Frame delivery obligation per SLA – EIR – Excess Information Rate • Excess frame delivery allowed – not subject to SLA if available
EIR
– CBS, EBS - size of burst window (ms) for allowed CIR / EIR rates
EVC2
EVC1
2 rate, 3 Color marking Marking typically done at ingress Green – Forwarded frames – CIR conforming traffic Yellow – Discard Eligible frames – Over CIR , within EIR Red – Discarded frames – Exceeds EIR
EVC3
Total UNI BW
20
MEF 10.1 Traffic Management Model
Port-based
Port/VLAN-based
UNI
EVC2
EVC2
Ingress Bandwidth Profile Per EVC1 Ingress Bandwidth Profile Per EVC2
EVC3
Ingress Bandwidth Profile Per EVC3
EVC1
EVC1 Ingress Bandwidth Profile Per Ingress UNI
UNI
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
21
Carrier Ethernet Scope and Reach Bringing vastly extended scalability for business and residential s HD TV TVoD, VoD
Internet
Gaming, Business Backup, ERP
Voice/Video Voice Telephony Gateway Wireless Backhaul
Video Source
Video Source
Broadband mobile data/video
Small/Medium Business
Residential Triple-Play
22
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
23
Carrier Ethernet Architecture for Cable Operators Headend Analog TV Feeds
Hub E-LAN
UNI
Home Run Fiber
D2A
A2D
Business Services over Fiber (GigE)
CE E-Line
Internet Access
Video Server
EQAM
Ad Insertion
CMTS
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
EoDOCSIS (future)
UNI
EoSONET /SDH PON
WDM EoT1/DS3
UNI
CE
Greenfield Residential & Business Services
24
Related MEF Services Specifications
MEF 6.1 Purpose
MEF 10.1
Metro Ethernet Services Definitions Phase II Defines the Ethernet Services (EPL, EVPL, E-Line, ELAN, and E-Tree)
Ethernet Services Attributes Phase 2
Purpose
Defines the service attributes and parameters required to offer the services defined in MEF 6. Updated from Original MEF 10 in October 2006
Audience
Appropriate for equipment vendors, service providers, and business customers, since it provides the fundamentals required to build devices and services that deliver Carrier Ethernet. For Enterprise s it gives the background to Service Level Specifications for Carrier Ethernet Services being offered by their Service Providers and helps to plan Ethernet Services as part of their overall network.
25
Example Uses of Services
26
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
27
Example Use 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 28
Example Use of EVP-LAN
Service Multiplexing
C Deadbeat Detect Credit Check, Inc.
D
A
Instant Cash 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 • ICL and WIDO Used Cars cannot see each other’s traffic
29
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
30
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 31
More at www.MetroEthernetForum.org/presentations.htm
32
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