1. Carrier Ethernet Services for
Enterprise Networks
Ted Wagner
Director, Product Management
Data Services
© Level 3 Communications, LLC. All Rights Reserved. Level and the Level 3 Communications Log are either registered service marks or service marks of Level 3 Communications, LLC and/or one of its Affiliates in the United States and/or other countries. Level 3 services are
provided by wholly owned subsidiaries of Level 3 Communications, Inc. Any other service names, product names, company names or logos included herein are the trademarks or service marks of their respective owners.

2. Characteristics of Today’s Business Applications
More business processes are automated 1980‟s Applications
Require increasing amounts of capacity
run on computers
2010‟s Applications
Chattier – latency is an issue
run on networks
Accessed by multiple constituents,
via multiple device types, from multiple geographies
Multiple delivery models – packaged software, SaaS, cloud
Complex data types comprised of voice, data and video
IT Challenge: Deliver Consistent Application Performance
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3. Enterprise Network Demands: The bottom line
It‟s about Accessibility
 Downtime is unacceptable
It‟s about Your Business Applications
 Performance Assurance
• Business communications and operations must be treated as vital end-to-end
 Application Persistence
• On-the-move session persistence
 Visibility and Control
• Can‟t manage what cannot be seen
It‟s about Expense Predictability and Simplicity
 If not straightforward, lose a portion of the purported benefits
It‟s about Private Communications
 All networks are shared networks, but communications must remain private
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4. Data Center Evolution
Cloud services are a continuation of the Enterprise trend to virtualization.
Customer Data Center Customer Data Center Customer Data Center Cloud Service
(Tape Backup) (Storage and offline apps) Realtime apps, Storage Software/Compute/Storage
Network
Centralization Virtualization Cloud Services
Customer Site Customer Site Customer Site Customer Site
Cloud Business Drivers: Cost savings, especially capex, and faster time to value
Cloud Business Concerns: Data security and privacy, responsiveness of the network
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5. The Global Ethernet Access
Services Market
Ethernet is becoming the preferred
way for businesses to connect to the
network
Ethernet Delivers
 Almost every application an end user
needs can be delivered over Ethernet
 Web, E-mail, Storage, VoIP, Video
Conferencing, Streaming ….
Ethernet Access represents the
largest market opportunity
Ethernet is truly “Plug and Play”
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6. Carrier Ethernet
Carrier Ethernet is a ubiquitous, standardized, carrier-class Service and Network
defined by five attributes that distinguish Carrier Ethernet from familiar LAN-based
Ethernet
 Standardized Services
 Scalability
 Reliability
 Quality of Service
 Service Management
It provides native Ethernet packet access which presents a direct challenge to the
traditional SONET telephony infrastructure
It provides Wide Area networking scalable beyond 10Gbps using ubiquitous
Ethernet technology
Carrier Ethernet services include all layer 2 services sold under various names –
 E-Line/E-LAN  Ethernet virtual private line (EVPL)
 Transparent or native LAN  Layer 2 virtual private network (VPN)
 Metro Ethernet  Ethernet access
 Ethernet private line (EPL)  Virtual Private LAN Service (VPLS).
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7. Developing Standards-Based
Wholesale Ethernet Access Services
The standards for deploying Carrier Ethernet End User
Services are well defined
Metro Ethernet Forum UNI
 MEF 9 - UNI
 MEF 14 - EVC EVC Carrier
 MEF 26 - E-NNI
Standards compliant equipment is widely
available and support multiple types of
technologies
NNI
 As simple as LAN extension
 As sophisticated as VPLS
3rd Party
Carrier
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8. E-LINE or E-LAN
E-Line Service type
E-Line Service Offerings
 Ethernet Private Line
 Ethernet Virtual Private Line
 Ethernet Wave
Point-to-Point
E-LAN Service type
E-LAN Service Offerings
 Virtual Private LAN Service
Full Mesh
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9. Typical Ethernet Services Comparison
Available Service Route Typical
Application Bandwidth Topology Technology
Speeds Options Protection Cost/bit
Waves Creating your
DWDM
(Wavelengths) own network
EPL Mission Critical
(Ethernet Private SONET
Applications
Line)
EVPL Single Data
(Ethernet Virtual Center Homed MPLS
Private Line) Services
Multiprotocol
VPLS applications
(Virtual Private LAN MPLS
across 50-100
Service)
locations
IP-based
IP VPN applications
(IP Virtual Private IP over MPLS
across hundreds
Network)
of locations
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10. Carrier Ethernet
Nation-wide and International Reach
International
Landing
Level 3
Gateway
International
Network
Domestic can provide national transport
Creates Layer 2 Services, EVPL, VPLS
Supports Layer 3 Services, IPVPNs
Option to resell higher layer services
 VoIP On-net
 Internet Access
Locations
Level 3
Leverages E-NNI Model Gateway
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11. Carrier Class Ethernet Access
Virtual Private LAN Services (VPLS)
MPLS-based multipoint data service
Customers can define WAN routing protocol
Typical speeds from 1 Mbps to 1Gbps
MPLS
Virtual Circuits (EVCs)
Static or Dynamic CoS Mapping
Flat rate or Usage-Based Billing
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12. Current Carrier Ethernet Services
Improved geographic availability
More service offerings from more service providers
 Carriers
 LECs
 Cable
 Other MSOs
Service offerings are becoming more sophisticated and feature complete
 Improved performance guarantees
 Greater transparency options
 MAC scaling
More users are switching from older packet-based technologies like Frame
Relay and ATM to MPLS and Ethernet
 Large Enterprise, Wireless, Retail, Financials, Health Care, Energy, Manufacturing,
and more
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13. Enhancing the User Experience
Ethernet has evolved from a „local‟ private network protocol to become part of the
WAN network
Carriers and equipment vendors need to adopt and implement standards to provide
the same level of OAM&P support that users have come to expect with any other
public telecom service
 IEEE 802.1ag - Connectivity Fault Management for VLANs
• Continuity check
• Link trace
• Loopback
 RFC 2544 - Network Interconnecting Devices
• Frame Loss
• Latency
• Packet Jitter
 ITU - Y.1731 - ITUs version of IEEE 802.ag
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14. One Connection Any Application
Businesses build
networks to support
their business
applications
Ethernet supports
connections to a
wide range of
services
Across our footprint Level 3 provides the same uniform service levels for
any of our services, switched or dedicated
Users can select the type of service they need based on the Service Levels
their applications require
Application performance is the key
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15. Ethernet and Cloud Computing
Ethernet best meets the requirements for building Private or Public clouds
A common cloud infrastructure opens the door for third party innovation
 Software as a Service
 Platform as a Service Carrier Ethernet
 Infrastructure as a Service
SONET/SDH
Private
MPLS Clouds
DWDM
IP-sec
Public
Internet Clouds
Cloud Service Business Users
Cloud Network
Providers
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16. Video Processing in the Cloud
Cloud Infrastructure
 Public Cloud – Direct Internet Access – Video Delivery
 Public Cloud – High Speed IP – Video Processing
 Private Cloud – Dedicated wavelengths – Video Uplinks
 Private Cloud – MPLS IPVPN – Video Production
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17. Summary
Ethernet delivers almost any type of
service
There are three types of services –
E-Line, E-LAN and E-Tree
Ethernet services can be created with
multiple types of technologies – MPLS,
SONET, DWDM
Services should be selected based on
the requirements of your applications
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