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Metro Ethernet 101
July 15, 2014
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Agenda
Overview
CE 2.0 Basics Metro Ethernet and Mobile Networks Metro Ethernet Designs Q&A
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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
Carrier Ethernet is often referred to in Enterprise circles as Ethernet Business Services. The MEF is the industry’s defining body for Carrier Ethernet.
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Typical MEF ServicesSubscriber View
Principal Applications Site-to-site access, Internet access, server consolidation, business continuity/disaster recovery, Enterprise-class cloud-based applications, XaaS, distributed imaging, CRM, manufacturing, distributed storage area networks VoIP, streamed/interactive video, L2-VPNs, virtualization, …
Top Market Sectors Finance, Healthcare, Education, Government, IT, Retail, Real Estate, Legal, Media, etc…
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Carrier Ethernet Basics
Key Carrier Ethernet Terminology EVC: Ethernet Virtual Connection 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: the physical demarcation point between the responsibility of the two Service Providers
Service Provider 1
Carrier Ethernet Network
UNI
End User Subscriber Headquarters
UNIENNI Service Provider 2
End User Subscriber
Branch Site
Ethernet Virtual Connection
Carrier Ethernet Network
UNI
Hosted ApplicationsInternet
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Carrier Ethernet Service Types
UNI
Multi-point to Multi-point EVC
UNI UNI
E-LAN • Multipoint L2 VPNs • Transparent LAN Service • Multicast Networks
UNI Point-to-Point EVC
UNI
E-Line • Virtual Private Lines (EVPL) • Ethernet Private Lines (EPL) • Ethernet Internet Access
UNI
UNI UNI
Rooted Multipoint EVC
E-Tree • Rooted Multi-Point L2 VPNs • Traffic Segregation • EP-Tree, EVP-Tree ENNI UNI
Point-to-Point EVC
UNI Carrier Ethernet Access Network
Carrier Ethernet Service Provider E-Access
E- Access • Wholesale Access Services • Access EPL • Access EVPL
4 Port-Based services, 4 VLAN Aware Services
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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
Services Using E-Line Service Type
Point-to-Point EVCs
Carrier Ethernet Network Storage Service Provider
UNI UNI
CE
CE
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Ethernet Virtual Private Line (EVPL) !Replaces a Frame Relay or ATM Layer 2 VPN services Enables multiple services (EVCs) delivered over single physical connection (UNI) to customer premises Optimizes use of BW and ports with CoS Supports “hub & spoke” connectivity via service multiplexed UNI at hub site
Services Using E-Line Service Type
Service Multiplexed
Ethernet UNI
Point-to-Point EVCs
Carrier Ethernet Network
UNI
UNI
CE
CE
CE
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Ethernet Private LAN Port-Based Each UNI is dedicated to the EP-LAN service Example use: Transparent LAN
Services Using E-LAN Service Type
Multipoint-to-Multipoint EVC
CE
UNI
UNI
UNI
CE
CE
EP-LAN
Multipoint-to-Multipoint EVC
Point-to-Point EVC (EVPL)
ISP POPInternet
UNI
UNICE
CE
UNIUNI
CE
CE
EVP-LAN
Ethernet Virtual Private LAN VLAN-Aware Service Multiplexing allowed at UNI Example use : Internet access and corporate VPN via one UNI
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Services Using E-Tree Service Type
Leaf
Leaf
Leaf
Rooted-Multipoint EVC
EP-Tree
Root
Ethernet Private Tree and Ethernet Virtual Private Tree
Allow root-root and root-leaf communication (but not leaf-leaf) Provide traffic segregation for cloud or franchise networks EP-Tree requires dedication of UNIs to the single EP-Tree service EVP-Tree each UNI can support multiple simultaneous services
Root
Rooted-Multipoint EVCMultipoint toMultipoint EVC
UNI
CE
UNI
UNI
CE
UNICE
EVP-Tree
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Access Network View
What is the UNI? (User-to-Network Interface) Services are attached to the UNI Per-service QoS is applied at the UNI Security is enforced at the UNI Network management starts at the UNI Layer 2 application awareness is gathered at the UNI
UNI
Internet / Public Cloud Services
Private Cloud Services
UNI
UNI
Regional Network Access NetworkAccess Network
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What is a service? MEF View
A service is the “connection with attributes” between 2 or more UNIs Point-to-point or multipoint-to-multipoint (everything else is a derivative)
Service Multiplexing allowed at UNI Example use: Internet access and corporate VPN via one UNI Every connection has an independent, service-specific SLA level
Private Cloud Services Example: Access to enterprise-grade business systems Secure, predictable, controlled, regulatory compliant
UNI
Internet / Public Cloud Services
Private Cloud Services
UNI
UNI
Multipoint-to-Multipoint EVC (EVPLAN)
Point-to-Point EVC (EVPL)
Point-to-Point EVC (EVPL)
Carrier Ethernet Network
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E-Access / Wholesale Services
WHY? Greatly simplifies buying & selling of wholesale Ethernet, delivery of off-net services Key for local, regional and global adoption of Carrier Ethernet
ENNI
Wholesale Access Network
UNI
Internet / Public Cloud Services
Private Cloud Services
UNI
UNI
Ethernet Virtual Connection (EVC)
Retail Service Provider Owns the customer relationship and
responsible for EVC performance
Access Service Provider Provides wholesale access to
off-net customer locations
E-Access
New in
CE2.0
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Additional BackgroundTerminology
CE 1.0 Original MEF Service Definition Certification of CE 1.0 is referred to as MEF 9 & 14 Certification Certification tests has many optional tests allowing a lot of variation in capabilities for those 9&14 certified
CE 2.0 Formally announced by the MEF in 2012 Builds on CE 1.0 Builds on specifications defined in CE 1.0 timeframe but not included in 9 & 14 tests Includes a suite of tests to verify compliance
Each topology is certified separately EP/EVP-LINE, EP/EVP-LAN, EP/EVP-TREE, and EP/EVP-ACCESS
Test suite has few optional components Test certification is more granular, allowing less variation among certified vendors.
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CE 2.0 Basics
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CE 2.0 BasicsEnhancements
Topologies are greatly enhanced from CE 1.0 !
E-LINE and EVP-LINE Increase in MTU, enhanced egress BWP, OAM, and enhanced L2CP
E-LAN and EVP-LAN Increase in MTU, enhanced egress BWP, OAM, and enhanced L2CP
E-TREE and EVP-TREE Now part of CE 2.0 certification Increase in MTU, enhanced egress BWP, OAM, and enhanced L2CP
ENNI and E-ACCESS services These topologies are all new
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CE 2.0 BasicsUNI, BWP, and L2CP
UNI 2.0 is now required Enhancements over UNI 1.0 include MTU, OAM, and EVC Limits
Service classification at the UNI Essentially* unchanged from CE 1.0
L2CP Processing Greatly enhanced – MEF 6.1.1 is just L2CP
BWP Essentially* unchanged Still per UNI, EVC or Priority per EVC Now supported on OVC endpoints on ENNI
!!!!*There are some minor changes
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ENNI and EP/EVP-ACCESS services added
CE 2.0 BasicsNew: Wholesale and Retail Services
ENNIWholesale
Access Network
Ethernet Virtual Connection (EVC)
Owns the customer relationship and responsible for EVC performance
Sells UNI to other CSP Responsible for E-ACCESS
SLA
E-Access
UNIUNI
UNI
ENNI
Operator Virtual Connect (OVC)
Wholesale Service Provider Retail Service Provider
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CE 2.0 BasicsNew: Management and OAM
CE 2.0 includes “Service OAM” in most literature !
Link OAM (802.3ah) – Ethernet in the first (last) mile UNI-N to UNI-C In CE 2.0 !
CFM OAM (802.1ag) – CFM over EVC and OVC UNI-N to ENNI, UNI-N to UNI-N, and ENNI to ENNI CE 2.0 refers to this as “Service OAM” !
Performance Monitoring (Y.1731) - defined in MEF 35, 36 MEF standards exist, but are not included in CE 2.0
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MEF and OAMCE 2.0 Basics
UNI
ENNIUNI
UNI
Wholesale Service Provider Retail Service
Provider
Retail Service Provider Domain(EVC)
UNI Domain
E-NNI Domain
Subscriber Domain
UNI Domain
Wholesale Domain
UNI-CUNI-NUNI-NUNI-C
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CE 2.0 BasicsMore on COS in CE 2.0
COS Definition (MEF 23.1) !
Defines COS models for EVC 3 COS model (High, Med, and Low)
High (EF for VoIP, MBH), MED and LOW (2 levels of AF) BE is also present (so technically 4 levels)
Coloring Specified support for both DEI, PCP, and (UNI-only) DSCP based coloring
Defines Performance Parameters and Tiers Valid Ranges for each tier of service are defined
Frame Delay Mean Frame Delay Inter-Frame Delay Variation Frame Delay Range Frame Loss Ratio
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Metro Ethernet and Mobile Networks
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Mobile Network Synchronization
Todays mobile networks need more than just frequency synchronization
Time of day for 1-way delay measurement Phase synchronization for reliable call handoff !
Delivering synchronization as a service offers transport providers an important revenue opportunity
Mobile Network Architecture
Frequency Sync
Time-of-day / Phase Sync
CDMA2000 ✓GSM ✓UMTS-FDD ✓LTE-FDD ✓UMTS-TDD ✓ ✓LTE-FDD with advanced features
✓ ✓
LTE-TDD ✓ ✓Mobile WiMAX ✓ ✓TD-SCDMA ✓ ✓
Source: MEF
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Power as a ServicePower over Ethernet (POE) for Small Cell Transport
Integrated POE for small cell deployment flexibility High power POE for optimal flexibility
POE, 802.3af, up to 15.4W POE+, 802.3at, up to 30W POE++, up to 90W
10G ERPS Ring
GE Ring
10GE Tower
GE
Even VLAN uplink
Odd VLAN uplink
10GE
Ethernet Transport
Small Cells
Up to 90W per small cell
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MBH circuits today run from base station to central switching location
Inefficient No provision for peer to peer traffic 4G protocols designed for mesh networks !!!!!!!!!!!
Mobile operators are asking for a different architecture
MBH Today: Hub and SpokeSimple, but inefficient
10G Ring
GE Ring
GE
10GE
Ethernet Switch
Ethernet SwitchEthernet Switch
NID
NID
NIDEthernet Transport
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A New ArchitectureBase Station Internetworking
Mobile Operators are increasingly looking for “peer-to-peer” connectivity between towers
Accommodates 4G protocols like LTE Advanced Peer-to-peer connectivity means more efficient use of bandwidth
10G Ring
GE Ring
GE
10GE
Ethernet Transport
Layer 2 mesh networking for today’s base station networks
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Hitless Service Upgrades: Always OnCarrier Grade Service Delivery
Upgrade services at any time without interruption Service upgrades with little/no SLA impact to end users
Higher customer satisfaction
Upgrade during regular business hours Minimize overtime labor in maintenance windows
10G Ring or 10GE Point to Point
GE Ring
GE Tower
10GE Tower
GE
Protected 10G Uplink
Ethernet Transport
10GE
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Link by Link Visibility: Self AwareSelf healing network
Identify service fault location for accelerated network recovery
Node level performance visibility minimizes overtime labor
10G Ring or 10GE Point to Point
GE Ring
GE Tower
10GE Tower
GE
Protected 10G Uplink
Ethernet Transport
Fault location identification with Y.1731 link analysis
End point non-compliance indication (Y.1731)
10GE
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Metro Ethernet Designs
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Carrier Ethernet provides consistent services delivered to users connected over the widest variety of access networks
Variety of Access Media
MSO/ Cable COAX
Direct Fiber
WDM Fiber
DS3/E3
Bonded Copper
Bonded T1/E1
Carrier 2
TDM
Ethernet
EthernetEthernet
Ethernet
EthernetEthernet
Ethernet
Direct Fiber IEEE 802.3z, ae, G.
8031, etc.
SONET/ SDH
PON Fiber
EthernetEthernet
Ethernet
Ethernet over Packet Wireless G.8032
Ethernet Ring
Ethernet
Carrier 1
UNI ENNI
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Ethernet & IP/MPLS Solution ArchitectureCalix Carrier Ethernet Access
Any Service over Fiber Network demarc and access transport Pt-to-pt as well as pt-mpt (E-LINE & E-LAN) Ethernet or GPON
Gateway to IP/MPLS E5 provides first level of service aggregation Demarcation
CE 2.0 Services Multi-CoS EVCs Advanced OAM
Addresses L2 MAC scaling End-to-end SLA management
Fiber: GPON
GE and 10GE anchor subscribers
Fiber: Pt-to-Pt
Fiber: Pt-to-Pt
New Campus / Bus Park
Fiber: Pt-to-Pt Ethernet
Regional Data Center
IP Core
GE and 10GE Demarcation
SMB retail subscribers
Fiber: Pt-to-Pt Ethernet
G.8032
LAG
MPLS Aggregation
G.8032
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MPLS Aggregation
Local Access Ring
Service from every location Support 10GE and GE to any customer Equipment-protected uplink to MPLS aggregation network using G.8032 Place nodes within business parks for private, anytime access Branch out to adjacent mass market retail businesses with GPON
10 GE Access Ring G.8032 Interop with
aggregation switch for high availability Fiber:
GPON
Retail
Business Park
Business Park
Large Business
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Single-Subscriber DemarcationMore revenue opportunities
10G/1G Demarcation to large business and Enterprise Multiservice demarcation for multiple access services
CE 2.0, Video, Internet, VoIP, T1 PWE3
PoE++ for carrier services Mobile operator small cell, WiFi AP, security camera, etc.
Deliver more than just data – Manageability, Power, Timing
Mobile Small Cell
Municipal WiFi APPOE++
EthernetSwitchFirewall Router
Managed Security Service
Service Provider Network Enterprise Network
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MTU DemarcationMulti-Subscriber, Multiservice
SMB Multiservice Demarcation
(HSI, POTS, T1, IPTV, RF Video)
NID
VoIPNID
VoIP
Transport
Aggregation
NID
NID
NID
10GE UNI
1GE UNI
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CE1.0 Single CoS EPLAN Profile
1 200 Mbps 250 Mbps 5 ms 0.1%
Single Rate limit QoS:
Rate Limiter Conforming
Service
2nd Stage Conforming
bundle
Hierarchical QoS: CE2.0 Multi-CoS EVPL Service Profiles
PriorityCommitted Information
Rate
Excess Information
RateFrame Delay Frame Loss
Ratio
Multi-CoS SupportOffer a portfolio of differentiated services with MEF CE 2.0
Application: Regional medical group with real-time telepresence and streamed HD medical imaging
Operator benefit: 30-40% more efficient network (source: MEF) Medical Center benefit: Application-specific service assurance
Telepresence
Streamed HD Medical Imaging
Non-real time content delivery
1st Stage Conforming
services
1 10 Mbps 0 5 ms 0.1%
2 100 Mbps 0 5 ms 0.1%
3 0 250 Mbps No guarantee 1%
EVCApplication-specific, Multi-CoS
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New requirements, new opportunitiesMBH and Wireless Aggregation
MBH Value Chain
L2 service
Enhanced Manageability
MB
H 2
013
MB
H 2
014
and
Bey
ond
MBH Value Chain
Timing as a Service
Power as a Service
SLA MonitoringResiliency!
3GPP S1 connection
Local Switch3GPP X2 connection
Controller/Gateway
Mobile Operator Packet Core
Local Switching
10G
Ring
1G
Ring
Fiber or CAT5/6
Backhaul
POE++ up to 100 Meters
Indoor Small Cell Aggregation
Resiliency
Networks must evolve to meet emerging MBH requirements
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Summary
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10GE ERPS Access Ring resiliency and
capacity Business Network
GE UNI(s)
GE UNI(s)
GE UNI(s)
Calix Unified Access
Deliver CE 2.0 services from high capacity broadband networks Leverage high performance, high availability access network assets
IP Services
GE/10GE UNI
GE UNI(s)
Fiber: GPON
1Large business along the 10G access ring 2
Extend fiber from access node for CE 2.0 services
3Provide service to business park located along 10G ring
5Extend equipment-protected campus ring from E7-2
4Deliver CE 2.0 over GPON
6Direct connection to operator’s Carrier Ethernet network to deliver services and provide OAM aggregation for the entire access network
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Q&A