Carrier Ethernet for Mobile Backhaul

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Carrier Ethernet for Mobile Backhaul
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Topics Carrier Ethernet for Mobile Backhaul

• Current market situation and trends
• Activating Carrier Ethernet for Mobile Backhaul
• Issues and Solutions for Mobile Backhaul
• MEFs role in enabling Mobile Backhaul
  infrastructure deployment
• Questions from the Audience

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Panelists
Dan Lewallen Product Manager Tellabs dan.lewallen_at_
tellabs.com 214-316-3703
Michael Haugh Sr. Product Manager Ixia mhaugh_at_ixia
com.com 818-610-9201
Jeremy Brayley Director of Technology
Strategy Network Solutions Division ECI Telecom
Ltd. jeremy.brayley_at_ecitele.com 1-412-809-4302
Mark McDonald VP Product Management Ceterus
Networks mmcdonald_at_ceterusnetworks.com 469-330-626
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Current Situation and Trends

• Dan Lewallen
• Tellabs

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Mobile Backhaul Trends Market Perspective

• Over 2.5 billion mobile phone users in 2006,
  growing to 3.6 billion in 2010
• Growing dependence on mobile connection
• Data mobility for all
• Data, video applications growing
• Traffic grows exponentially, ARPU/revenue does
  not
• The 1 driver for new backhaul technologies
• Carrier Ethernet for backhaul
• Ethernet microwave
• Wireline Ethernet over copper, coax, fiber,
  DOCSIS, DSL, PON

Source Infonetics Research, 2008
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Mobile Backhaul Has Dynamic Growth

• New mobile applications and bandwidth
  growth(gt100 in 2008 with much more to come)

9/06
7/07
Movies, music, news, more music, text, web, more
content ..
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Industry trends

• Demand for bandwidth will grow
  
  disproportionately more than
  
  revenue for the operator
• The bandwidth increase will primarily be on Best
  Effort data user services, and driven by flat
  fee business models
• Search for technologies to provide cheaper and
  more effective ways to meet the capacity grow at
  a lower CAPEX and OPEX
• Evolution towards Ethernet/IP based mobile
  solutions

Source Light Reading
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Activating Carrier Ethernet for Mobile Backhaul

• Mark McDonald
• Ceterus Networks

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What the Wireless Carriers are Thinking about

• Migration to IP
• WiMax LTE are all IP
• CDMA is moving there rapidly
• UMTS 3G is moving to IP via ATM, Ethernet
  Radios this year
• Cell Site equipment Mobile applications being
  designed for IP
• Circuit Emulation to sustain TDM infrastructure
• Bandwidth Growth Need to plan for 15 to 20
  times the growth of bandwidth and systems over
  the next 5 to 8 years.
• Mobile operators are looking to Lower Costs
• Broadband costs less per bit than T1
• Reduce the amount of systems -- simplify

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Ethernet Options Solve Backhaul Cost Problem

• PDH (T1/E1 etc.) costs climb directly with
  bandwidth
• Ethernet wireline costs grow gently with large
  bandwidth increases (Eth, DSL, PON, cable)
• New IP/Ethernet wireline options to satisfy the
  the 1 investment driver operational cost savings

Stay on PDH
Ethernet
Source Infonetics Research Mobile Backhaul
Equipment, Installed Base, and Services, 2007
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Mobile Backhaul Options
1000BT
100BT
GigE
GBE Direct Fiber
10/100BT
WDM
EoDOCSIS
Leased Ethernet
Service Provider Network
100BT
ADM
EoSONET/SDH
Radio
RAN NC
Leased T1/DS3
PON
nxT1
EoT1/DS3
100BT

• Mobile backhaul Ethernet can be delivered over a
  variety of access technologies

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Ethernet Growth by Backhaul Technology
New Circuit Growth North America

• Source Heavy Reading, 4Q07

• In North America, T1s continue to be the dominant
  backhaul technology for the period 2007-2011. For
  new Ethernet deployments, most will be served by
  Ethernet over fiber (59) and microwave (25)
  technologies.

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Network Transformation
Progression to an All-Packet Network
Base Station Interfaces
2G/2.5G TDMGSM/GPRS, TDMA, CDMA
3G ATM UMTS Rel. 99
3G/4G Ethernet/IP UMTS rev. 56, CDMA 1X EV-DO,
WiMax, UTRAN LTE
Benefits Scalable bandwidth, OpEx savings with
fast ROI, future proof architecture Challenge
Precise timing over asynchronous packet networks,
OAM, availability of high speed links (fiber)
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Challenges and Requirements

• Transport providers are trying to
• Support multiple operators at the same tower
• Accurately and independently regenerate timing
  per mobile operator
• Deliver quality service (low latency, jitter and
  packet loss)
• Support variety of cellular protocols with TDM,
  ATM and Ethernet interfaces
• Provide diagnostic tools to operator, such as
  in-band facility loopbacks
• Find hardened units for use in compact outdoor
  cabinets

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Challenges and Requirements

• Mobile operators are looking for flexible
  equipment that can
• Take advantage of the lowest cost, highest
  bandwidth access networks
• Optimize usage of access links with intelligent
  oversubscription, idle flag suppression, Abis
  optimization, DBA, per VC switching, etc.
• Detect faults and network degradation (excessive
  latency, jitter, etc.)
• Monitor performance to ensure SLA guarantees are
  met

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Carrier Ethernet can provide Mobile Backhaul
Radio Access Network
Mobile Core Network
2G/3G/xG Base Stations
Aggregation
MSC
Voice Trunking
Node-B / BTS/
BSC RNC
Pseudowire
MSC
Intelligent Demarcation
WiMAX
MSC
Wireless
TrafficOptimization
Node-B / BTS/

• Reduce transport costs by migrating 2G/2.5G, 3G
  and 4G to scalable, lower cost, higher bandwidth
  Ethernet

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Issues and Solutions for Mobile Backhaul

• Michael Haugh
• Ixia

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Mobile Backhaul Issues SLAs and PM

• Ethernet service performance and SLAs, especially
  delay and delay variation are key to Mobile
  backhaul applications
• SLAs Metro Ethernet Forum (MEF) 10.1
• Recommended key parameters for SLAs Service
  availability, frames lost, frame delay, frame
  delay variation
• Defined the what, not the how
• MEF 14 provides a test specification and
  certification
• Monitoring RFC-2819 - RMON Etherstats
• Monitoring of local performance (eg node or LAN)
• Fault Management ITU-T Y.1731 IEEE 802.1ag
  Standards
• Focused on end to end service (WAN)
• Both provide fault management, Y.1731 provides
  performance measurement including frame delay,
  frame delay variation, frame loss ratio
• Standards based testing MEF / IETF
• MEF 9, 14, 18, 19 RFC 2544 standards for lab
  based testing and maintenance window testing

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NID/Demarcation device MEF UNI
UNI Demarcation
Carrier network
Customer network
100FX/GbE, EoTDM or EoCopper
Carrier network
10/100BT
Customer equipment
Demarcation device
Customer premise Eg Cell site

• Three key functions for Ethernet NID/demarcation
• Link/Service layer Ethernet OAM
  802.3ah/802.1ag/Y.1731
• Ethernet Service UNI (User Network Interface)
• Service layer policing and definition MEF
• Integrated first mile transport
• Extend Ethernet reach over Fiber (GbE/100FX,
  EoOC-n/STM-n, EoDS3/E3) or copper (EoDSL,
  EoT1/E1, EoNxT1/E1)

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Demarcation device MEF NNI
Carrier B network
E-NNI Demarcation
Carrier B network
Carrier A network
GbE
GbE
Carrier A network
Carrier B network
Demarcation device
Central office

• Key functions for MEF E-NNI (External Network to
  Network Interface) demarcation device
• Link/Service layer Ethernet OAM
  802.3ah/802.1ag/Y.1731
• Service layer policing/shaping and definition
  MEF
• Protection mechanisms - LAG, MSTP
• Throughput Test RFC-2544

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Wholesale Provider UNI demarcation

• UNI demarcation device critical for Ethernet
  service delivery
• Media conversion
• Loopbacks/testing
• SLA monitoring

10/100BT
100FX/GbE
10/100BT
EoT1, DS3, OC-3
NNI
Carrier WAN
Mobile Switching Center
EoDOCSIS, EoCu
10/100BT
GbE
10/100BT
nxT1
Wireless Carrier
Wireless Carrier
Wholesale Access Network
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Wholesale Provider - NNI demarcation

• NNI handoff key to carrier to carrier hand-off or
  demarcation
• Used for test, monitoring and network separation
• Provides far end MEP/MIP for SLA monitoring

10/100BT
100FX/GbE
10/100BT
NNI
EoT1, DS3, OC-3
Mobile Switching Center
Carrier WAN
EoDOCSIS, EoCu
10/100BT
GbE
10/100BT
nxT1
Wholesale Access Network
Wireless Carrier
Wireless Carrier
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Wireless Service Provider

• Wireless UNI demarc device at cell site performs
  3 key functions
• Remote test/loopbacks
• SLA monitoring
• Traffic shaping MEF UNI

10/100BT
100FX/GbE
T1, DS3, OC-3
10/100BT
Carrier WAN
Mobile Switching Center
EoDOCSIS, EoCu
GbE
10/100BT
nxT1
10/100BT
Wholesale Access Network (eg MSO)
Wireless Carrier
Wireless Carrier
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Traffic Shaping
100M
10M
EoX
100BT
100BT
Third Party Carrier Network
10M Service
UNI
Radio Equipment
Third party demarcation device
Cell site

• 100M radio output drives a 10M service
• Excess traffic can be dropped (policed) or
  buffered (shaped)
• Shaping in Wireless Carrier demarc ensures that
  no traffic gets dropped
• With multiple wholesale carriers
  shaping/policing capabilities and buffer settings
  will vary greatly

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SLAs, Fault Management and Perf Monitoring

• SLAs can differentiate service offerings, MEF
  10.1 outlines standard metrics for service
  attributes
• Monitoring is required to deliver SLA reporting
• Standards based Fault Management and Performance
  Monitoring is available, but requires equipment
  end-to-end that supports it
• Clear demarcation and testing within and across
  UNI/NNI boundaries is required
• Lab testing is required and MEF certification is
  available which will also help to differentiate
  services

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MEFs role in enabling Mobile Backhaul
infrastructure deployment

• Jeremy Brayley
• ECI Telecom Ltd.

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Mobile Backhaul Implementation Agreement

• The structure of the document provides generic
  guidelines for several mobile technologies
  specific guidelines for a given mobile technology
  may also be specified

• MEF Mobile Backhaul
• Standardized services
• Certification
• Interoperability
• UNI Requirements
• Ethernet OAM (Link OAM and Service OAM)
• Protection and Fault Recovery Requirements
• Service Requirements
• CoS Requirements
• Service Definitions
• Synchronization

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Todays Mobile Backhaul MEF Use Cases

• The Implementation Agreement identifies four
  generic deployment scenarios that capture the
  main short term and long term deployment
  possibilities

Legacy
Legacy Transport
Legacy RAN
Legacy RAN
Legacy non-packet RAN and non-packet
transport
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Packet offload over carrier Ethernet 1a
Legacy
Carrier Ethernet Network
Generic Interworking Function
Generic Interworking Function
UNI
UNI
Legacy Network
RAN BTS
RAN NC

• Overlay MEN does bandwidth offloading onto
  Ethernet services
• Legacy network continues to transport voice and
  deliver timing

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Emulation over Carrier Ethernet 1b
Legacy
Carrier Ethernet Network
Generic Interworking Function
Generic Interworking Function
RAN BTS
UNI
UNI
RAN NC

• RAN nodes with legacy interfaces transport all
  traffic over Ethernet services using emulation
  technologies

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RAN dual stack 2a
Legacy
Eth/IP
Legacy Network
Carrier Ethernet Network
RAN BTS
UNI
UNI
RAN NC

• RAN nodes are equipped with Ethernet and legacy
  interfaces
• Overlay legacy network transport voice and
  delivers sync MEN is used for BW offloading

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Full Ethernet BTS and Transport Network 2b
Eth/IP
Carrier Ethernet Network
RAN BTS
UNI
UNI
RAN NC

• New RAN nodes with native Ethernet interfaces
• All traffic is transported over Ethernet services

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Separation of Voice and HSPA Data over Ethernet /
IPUse case 1ab and 2ab example
Use Case 1a
NE1 ATM/IMA or STM1/VC4
Cell Site
TDM or ATM Backhaul
T1/E1/ orATM Aggregation
Voice
Data
Node B / BTS
FE / GE Aggregation
RNC/BSC
FE/GE
Use Case 1b
Pico/Femto
NT1/E1 ATM/IMA or STM1/VC4
Ethernet / MPLS All-IP
Ethernet
FE / GE Aggregation
RNC/BSC
NT1/E1TDM
Use Case 2a/b same as 1a/b except BTS/NodeB have
Ethernet Interfaces
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MEF 18 Certification for Mobile Backhaul CES

• MEF 8 Emulation of PDH Circuits over Metro
  Ethernet Networks
• MEF 18 provides standard testing of Circuit
  Emulation Services over Ethernet
• Lead by strong service provider demand
• Industry first impairment testing brings first
  test of emulation of clock recovery
• Raise the level of confidence that clock recovery
  will meet the stringent requirements of mobile
  backhaul.

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Closing

• Carrier Ethernet is in demand for Mobile Backhaul
• There are Ethernet deployment options for all
  mobile backhaul situations
• Carrier Ethernet technology is rising to meet the
  stringent technical and operational requirements
  of Mobile Backhaul
• The MEF is working in conjunction with other
  standards organizations to ensure that scalable
  solutions are available

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Panelists
Dan Lewallen Product Manager Tellabs dan.lewallen_at_
tellabs.com 214-316-3703
Michael Haugh Sr. Product Manager Ixia mhaugh_at_ixia
com.com 818-610-9201
Jeremy Brayley Director of Technology
Strategy Network Solutions Division ECI Telecom
Ltd. jeremy.brayley_at_ecitele.com 1-412-809-4302
Mark McDonald VP Product Management Ceterus
Networks mmcdonald_at_ceterusnetworks.com 469-330-626
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Thank You
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