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Standardized Carrier Ethernet Services for Optical Transport Networks
Carsten Rossenhövel
MEF EMEA Marketing Co-Chair
Managing Director, European Advanced Networking Test Center (EANTC)
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Developing, Marketing and Certifying Standards for Carrier Ethernet Services since 2001
Standards Compliance Education Operations
213 Members - 119 Service Providers - 40 Standards
689 Certified Products (54 CE 2.0) - 854 MEF CECPs
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Ethernet Services Growth
• Total worldwide bandwidth purchased for Ethernet Services exceeds legacy since 2012
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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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Enabled Services & Applications
Retail and Wholesale Interconnect Business Services • New Service Attributes Geared for Next Gen Applications
CE 2.0 for Mobile Backhaul • Blueprint for 4G/LTE, Small Cell Carrier Ethernet as Cloud Carrier • Business-Class Cloud Services
HQ
Branch
Internet Hosted/Cloud Applications
Carrier Ethernet
… Driving Market Growth
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Carrier Ethernet Service Types
UNI
Multi-point to Multi-point EVC
UNI UNI
E-LAN (Multipoint) • Multipoint L2 VPNs • Transparent LAN Service • Multicast Networks
UNI Point-to-Point EVC
UNI
E-Line (Point-to-Point) • Ethernet Private Lines (EPL) • Virtual Private Lines (EVPL) • 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
Each Service Type Has a Port-Based and a Virtual Service
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Ethernet Wholesale Access Services
– Greatly simplifies buying & selling of wholesale Ethernet services
– Reduces time to contract from months to weeks
– Significant market differentiators for providers
Service Provider (buyer) (Owns the customer relationship)
NID
UNI UNI
NID
ENNI
Access Service Provider (seller) (Provides Wholesale Access to remote
customer location)
ENNI ENNI
Optional: Transit Provider (seller) (Provides Segmented Wholesale Services )
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MEF 33 Ethernet Access Services
E-Access: First Wholesale CE Service Type Specified in MEF 33 based on ENNI (MEF 26)
Two Service Types:
Ethernet Virtual Connection (EVC)
Service Provider (Owns the customer relationship)
E-Access
CE
UNI
CE
Access Service Provider (Provides Wholesale Access to
remote customer location
Service
Type Port-Based Service
(at the UNI)
VLAN-Aware Service (at the UNI)
E-Access Access EPL Access EVPL
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E-Access Benefits by Target Audience
• Wholesale Ethernet Access Providers – Standardizes first/last mile Ethernet access services
– Leverages investment in existing footprint
• Retail Ethernet Service Providers – Minimizes quantity of custom interconnect
agreements with Ethernet Access Providers
– Reduces time to market
• End-Users – Makes it easier to reach more office locations using
a single consistent Carrier Ethernet service
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Access Media Options
Carrier Ethernet provides consistent services delivered to users
connected over the widest variety of access networks
MSO/ Cable COAX
Direct Fiber
WDM Fiber
DS3/E3
Bonded Copper
Bonded T1/E1
Carrier 2
ENNI
Ethernet
Ethernet Ethernet
Ethernet
Ethernet Ethernet
Ethernet
Direct Fiber
IEEE 802.3z, ae, G.8031, etc.
SONET/ SDH
PON Fiber
Ethernet Ethernet
Ethernet
Ethernet over Packet Wireless G.8032
Ethernet Ring
Ethernet
Carrier 1
UNI ENNI
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Carrier Ethernet Backbone Transport
• Carrier Ethernet services are agnostic to the underlying transport
• Typical Backbone Transports include – Carrier Ethernet over Provider (Backbone) Bridging – Carrier Ethernet over MPLS or MPLS-TP – Carrier Ethernet over SONET/SDH – Carrier Ethernet over Direct Fiber
Service Provider
Carrier Ethernet Network
CE UNI
End User Subscriber Site
EVC
UNI CE
End User Subscriber
Site
Internet Hosted Applications
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NID Demarcation
Ethernet Over Direct Fiber Longest Distance
- Distance up to 50..80 km (not amplified)
Highest Bandwidth Capacity - Bandwidth Capacity of 100 Mbps, 1 Gbps, 10 Gbps,
40 Gbps, 100 Gbps
Security - Physically secure medium with no EMF
emission; high effort required to tap lines
Service Flexibility - High link capacity can be efficiently provisioned
with rate limiting tiered services - Network Interface Devices (NIDs) provide
managed demarcation
Central Office
Multi-Customer NID Demarcation
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Ethernet Over Optical Transport/WDM
- Terabits per second per fiber pair in the optical domain: Coarse-grain bandwidth (100 Gbit/s, 10 Gbit/s)
- Gigabits per second in the packet domain: Fine-grain bandwidth (10/1/0.1 Gbit/s)
- Multiple Ethernet virtual circuits are aggregated at the packet-optical network boundary
- WDM solutions extend to the metro aggregation today, requiring flexible packet-optical integration
Packet Network (Metro Aggregation)
Central Office
NID
Optical Transport Network
(Core) Packet-Optical Switch
WDM (Metro
Aggregation)
Packet-Optical Switch
Packet-Optical Switch
NID . . .
NID
Third-Party Provider
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MEF Specs Enable Multipoint Services
Point-to-Point Ethernet Services
• Port-based (EPL)
• VLAN-aware (AVPNs)
Packet Network (Metro Aggregation)
Central Office
NID
Optical Transport Network
(Core) Packet-Optical Switch
WDM (Metro
Aggregation)
Packet-Optical Switch
Packet-Optical Switch
NID . . .
NID
Third-Party Provider
Multipoint Services
• Supported via tunneling and/or Ethernet-aware packet-optical switches
• E-LAN
• E-Tree (Point-to-Multipoint)
Wholesale Access Services
• Port-based (Access EPL)
• VLAN-aware (Access EVPL)
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Manageable Multi-Class of Service Delivery
• MEF 23.1: Class-based performance requirements
• Easy to deliver tighter delay or delay range as well as low loss
Performance Attributes
CoS Label H CoS Label M CoS Label L Applicability
Frame Delay (ms) 10 20 37 At least one of either FD or MFD required
MFD (ms) 7 13 28
Inter-Frame Delay Variation (ms)
3 8 or N/S N/S
At least one of either FDR or IFDV required
Frame Delay Range (ms)
5 10 or N/S N/S
Frame Loss Ratio .01% i.e. 10-4 .01% i.e. 10-4 .1% i.e. 10-3
UNI
EVC1
CoS M 30 Mbps CIR for Video
CoS L 50 Mbps CIR for VPN data traffic
68Mbps for Internet Access
EVC2
CoS H 10 Mbps CIR for Voice
(Exa
mp
le)
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Fault Management, Performance Monitoring
• OTN-level OAM recommended for link monitoring
• Ethernet SOAM recommended for service and customer-level monitoring
• Monitor end-to-end connection per Class of Service
Retail Service Provider
Customer
Premises Wholesale/Access Provider
Customer
Premises
ENNI UNI UNI
Service Provider ME
Operator ME Operator ME
MSG RESP MSG RESP
ENNI ME
Carrier Ethernet Network
Carrier Ethernet Network
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Summary
• Ethernet Access Services constitute now >50% of worldwide Access bandwidth
• MEF supports deployment – Professional education program
– Equipment/services certification program
• Carrier Ethernet adds value to OTNs – Enabling advanced multipoint services
– Creating a standardized wholesale access model
– Allowing for strict SLAs through service-level fault management and performance monitoring
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