2G 3G 4G - Adtran

qualtaghblurtingMobile - Wireless

Dec 12, 2013 (3 years and 10 months ago)

416 views

Making Mobile Backhaul 4G Ready

Delivering Transitional Mobile Backhaul
Solutions

3

®

Adtran, Inc. 2007 All rights reserved

Enabling Mobile Broadband

ADTRAN Mobile Backhaul Leadership


Leadership in enabling mobile services over any access


Dominant T1 backhaul provider in U.S.A.


TDM (HDSLx), SONET(OPTI
-
6100), Ethernet (NetVanta/TA5000)


Copper, Fiber, Microwave


Focused on Ethernet backhaul for demanding IP services


Ethernet over Fiber, GPON


Resilient architectures


Advanced Cos/ QoS features


Innovation to drive down cost of delivering IP and legacy
services


Integrated tools/function to reduce cost


Automated installation processes


Simplified operational models


Packet/ Ethernet based timing

4

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Adtran, Inc. 2007 All rights reserved

Mobile Broadband is here

10X bandwidth w/o corresponding profit


Mobile TV is here


i.TV 2.0 for iPhone coming
soon


Enjoy full NBC videos on
your iPhone


CBS releases TV.com
iPhone app


Hulu coming to the iPhone?


4G technology being
deployed


Rivals Wireline Broadband
speeds


VzW deploying LTE


Sprint/Clearwire WiMAX


All WSP have 4G plans for
2010
-
2013



Evolution from 2G


㍇3




TV program
watched on
Smart Phone

5

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Adtran, Inc. 2007 All rights reserved

Mobile Broadband hammers Profitability

Data usage way up; disproportionate ARPU


Revenue and OpEx were once
linear.


Voice and text messages drove
majority of current revenue as
well as majority of backhaul
impact.


All you can Eat Pricing Models
drives demand to lower cost per
bit delivered to user


Revenue per bit delivered is
driven to lowest levels.


Significantly expand data
capacity to enable new devices,
services and applications


ARPU growth


LTE is 1
st

generation wireless
network built as a data network

Revenues
Traffic
Gap between traffic
Gap between traffic
and revenue
increases
Gap between traffic
Data Dominant
Gap between
traffic and revenue
increases
Revenues
Traffic
Gap between traffic
Gap between traffic
and revenue
increases
Gap between traffic
Data Dominant
Gap between
traffic and revenue
increases
Voice Dominant
Source: Light Reading

6

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Adtran, Inc. 2007 All rights reserved

Demand for Next
-
Gen Mobile Backhaul

Ethernet Access Missing link to Profitability


Wireless (Mobile) Network Operators moving to Packet
-
networks drive down Operational Cost


Core Networks and Applications Infrastructure have moved to
packet, IP/MPLS upgrades.


First Packet
-
based RF technologies being deployed at cell sites


Mobile Backhaul Access last hold
-
out to All
-
Packet
Network Realization




Mobile Telephone
Switching Offices
(MTSO)

100s or 1000s of
Base Stations
served

LTE is Packet

IMS and EPC
are packet

Mobile Backhaul
(Access)
Connection
needs to be
Packet

7

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Adtran, Inc. 2007 All rights reserved

Circuit Core

Hybrid Backhaul Model

Baby step toward All
-
IP Convergence


Key backhaul transformation required for 4G (LTE)


LTE forecast to be 80%+ of traffic, 50


100Mbps required


Desire to freeze, decouple TDM leased line growth


Leaves Voice Network Undisturbed
-

Revenue Protection


No changes to Network Timing, Operational Processes

Cell Site

Access & Aggregation

Central Office/Mobile Core

PSTN

Service

Packet Core

TDM/SDH

IP/Ethernet

Backhaul

Two Networks

Internet

2G

3G

4G

PDSN

HA

Access:

2G: T1/E1 (PDH)

3G: ATM IMA/PDH

3G: ML
-
PPP/PDH

4G: Ethernet over X


Aggregation:


2G: SDH/FIber

3G: ATM/SDH

3G: ML
-
PPP/SDH

4G: Ethernet over GE Fiber


Cost /bit

Scale

8

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Adtran, Inc. 2007 All rights reserved

Key Attributes for an Ethernet NTU

Robust enough for Mobile Backhaul


Low Cost/Scalable Bandwidth


Ethernet over Fiber (EoF)


first choice


4G/LTE Bandwidth, 100Mbps+


10x increase in data rate, 1Gbps through
-
put available


Time to Market for Service Ubiquity,


Every cell site must be served. 2011 launch


EoF not everywhere, can use alternative EoX


Allows Services Convergence


Path to all
-
packet architecture


Retire leased lines, integral sync capabilities


SLA Management


CoS support e.g. Real
-
time vs. Best
-
Effort


Resiliency


99.99% service availability


Hardened for cell site deployment


Robust operating range, metallic interface protection




9

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Adtran, Inc. 2007 All rights reserved

A Cell site is not a Wiring Closet

Flexible mounting/powering options


In BTS or eNB enclosures


Single RMU in size


In CO or Street Cabinet


NEBS, IEC compliance


In uncontrolled environments


Temperature hardened


Near Tower


Surge protected/isolated interfaces
e.g. cell site is a lightning rod


No space, rack or GR
-
487 cabinet


Rack as well as wall mounting
options


OSP options


+24V &
-
48VDC powering options


Resilient, Dual feed powering

OSP EAD

LTE eNB

10

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Adtran, Inc. 2007 All rights reserved

Fiber cell sites grow in all regions


0
200,000
400,000
600,000
800,000
1,000,000
CY07
CY08
CY09
CY10
CY11
CY12
CY13
Cell Sites (M)
North America
EMEA
Asia Pacific
CALA
The number and portion of cell sites with fiber grows in each region in each year

through 2013, and won’t stop there

11

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Adtran, Inc. 2010 All rights reserved

Proprietary and Confidential

11

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Adtran, Inc. 2007 All rights reserved

EoCu, EoTDM, EoF, EoS equals Eo
X

Completing the customer reach puzzle


EoCu


Ethernet over Copper


Optimized bandwidth per loop


Perfect for short to medium length loops


Requires local deployments & loop access


EoTDM


Ethernet over TDM


Predictable bandwidth per circuit


Time to Market effective deployments


Minimizes CapEx by centralizing aggregation
platform


EoF
-

Ethernet over Fiber


Active Ethernet for higher rate business services


PON for cost
-
effective SOHO service offer


EoS
-

Ethernet over SONET/SDH


Outstanding reputation


Resiliency


Proven TDM/Synchronization for mobile
backhaul

12

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Adtran, Inc. 2007 All rights reserved

Same service, Varied Deployments

10Mbps to 1Gbps Service Delivery

NetVanta 8044
Ethernet Access
Device (EAD)

Carrier
Ethernet
via GigE

Total Access 5000
Carrier Ethernet
Aggregation

BTS/Node B

100Mbps or GE Optical Fiber

Mobile Exchange

NetVanta 838 OSP
NTU

Typical

10, 20, 30, 40Mbps
Carrier Ethernet
via GigE

Total Access 5000
Carrier Ethernet
Aggregation

BTS/Node B

Mobile Exchange

Up to 8 pairs e.SDHSL Copper

13

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Adtran, Inc. 2007 All rights reserved

Carrier Ethernet Service Coverage
Uncontrolled Environmental Conditions


Key Application is Mobile Backhaul


GR
-
487 Compliant Hardening and Environmental sealed
Outside Plant (OSP) Options


Enhanced Protection (EP) for Lightning Isolation for WAN, LAN
and Power interfaces


Environmental Alarming


NetVanta 838 OSP


NetVanta 838 EP


14

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Adtran, Inc. 2007 All rights reserved

Key Attributes for an Ethernet NTU

Robust enough for Mobile Backhaul


Low Cost/Scalable Bandwidth


Ethernet over Fiber (EoF)


first choice


4G/LTE Bandwidth, 100Mbps+


10x increase in data rate, 1Gbps through
-
put available


Time to Market for Service Ubiquity,


Every cell site must be served. 2011 launch


EoF not everywhere, can use alternative EoX


Allows Services Convergence


Path to all
-
packet architecture


Retire leased lines, integral sync capabilities


SLA Management


CoS support e.g. Real
-
time vs. Best
-
Effort


Resiliency


99.99% service availability


Hardened for cell site deployment


Robust operating range, metallic interface protection

15

®

Adtran, Inc. 2007 All rights reserved

Mobile Backhaul Convergence

Cell Site

Access & Aggregation

Central Office

Core

PSTN

Service

Internet

Ethernet

EAD/NTE

TA5000

2G

3G

4G

IAD

2G, 3G, 4G

Data

TDM/SONET

2G, 3G Voice

Clock Sync

PSTN

Internet

Ethernet

EAD/NTE

TA5000

2G

3G

4G

IAD

2G, 3G

Voice

2G, 3G, 4G

Data

2G, 3G Voice

Clock Sync

16

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Adtran, Inc. 2007 All rights reserved

Pseudowire and Circuit Emulation

Required for all
-
IP backhaul


Bridge 2G, 3G services a.k.a Circuit Emulation or
Pseudowire


ATM IMA (UMTS) support


TDM (GSM, CDMA) support


ML
-
PPP (EV
-
DO, HSPA) support


SAToP


DS1 or E1 over Packet


ITU Y.1453, RFC 4553, MEF 8


CESoPSN


DSO visibility


ITU Y.1453, IETF pwe3
-
cesopsn, MEF 8


ATM IMA over E1/T1


Backhaul over SAToP


ATM PW saves DCS ports

Provider IP Network
Provider Edge
Provider Edge
Customer Edge
Customer Edge
Emulated T1
Pseudowire T1
Attachment Circuit: T1
Packets carry block of T1 data and RTP stamp
Ethernet
CE Packet
CE Packet
CE Packet
CE Packet
CE Packet
CE Packet
Timing Reference
Timing Reference
Provider IP Network
Provider Edge
Provider Edge
Customer Edge
Customer Edge
Emulated T1
Pseudowire T1
Attachment Circuit: T1
Packets carry block of T1 data and RTP stamp
Ethernet
CE Packet
CE Packet
CE Packet
CE Packet
CE Packet
CE Packet
CE Packet
CE Packet
CE Packet
CE Packet
CE Packet
CE Packet
Timing Reference
Timing Reference
Timing Reference
17

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Adtran, Inc. 2007 All rights reserved

SONET/SDH Network

Traditional Network Timing Distro

Sync Networks Deliver … Sync. Very well. ;p

Primary

Reference

Source

T1/E1

T1/E1

SONET/SDH

Secondary

Reference

Source

GNSS/GPS


Frequency


Frequency


Phase


Time
-
of
-
Day

Traceability

SONET/SDH

or PDH

18

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Adtran, Inc. 2007 All rights reserved

Three Aspects of Synchronization


Frequency


This is what SONET/SDH delivers today


All that’s needed for the vast majority of network services


Synchronous Ethernet is an excellent replacement for
SONET/SDH based sync distribution


Phase


Required by Time Division Duplex (TDD) based mobile solutions


Beyond the capabilities of PHY based sync distribution
(SONET/SDH or SyncE)


Today, typically delivered by GPS/Satellite


1588v2 can provide this requirement in band


Time
-
of
-
Day


Required for a CDMA2000 operation


1588v2 can provide this requirement in band

19

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Adtran, Inc. 2007 All rights reserved

Key: Not Breaking the Sync Chain

Considerations of Migrating Standards

Timing Standard

Entire Path is Sync
Aware it delivers…

Implication of non
-
Sync
-
aware node

SONET/SDH/PDH

Frequency

Sync Path Broken

Adaptive/Differential

Frequency


Not dependent

on full
NE awareness to pass
sync

Synchronous Ethernet

Frequency

Sync Path Broken

GPS/Satellite

Frequency

Phase

Time
-
of
-
Day

Not dependent

on full
NE awareness to pass
sync

1588v2

Frequency

Phase

Time
-
of
-
Day

Dependent

upon
number of ‘unaware
hops’ and network
loading

20

®

Adtran, Inc. 2007 All rights reserved

Clock Synchronization/Recovery
Requirements


Precision Timing Protocol defined by IEEE 1588v2


Synchronous Ethernet defined by ITU
-
T G.8261/8262


ADTRAN Differential and Adaptive timing methods defined by
ADTRAN pseudowire solution implementation/specifications

Technology

Frequency
limit*

Phase limit

Time of Day Limit

GSM, WCDMA
FDD, LTE FDD

+/
-

16 ppb on site

+/
-

50 ppb on air

+/
-

5 us Ref to BTS

+/
-

10us BTS to BTS

None

WCDMA TDD,
LTE TDD

+/
-

16 ppb on site

+/
-

50 ppb on air

+/
-

1.25us Ref to
BTS

+/
-

2.5us BTS to BTS

None

WiMAX

+/
-

16 ppb on site

+/
-

50 ppb on air

+/
-

1.0us BTS to BTS

None

CDMA

+/
-

16 ppb on site

+/
-

50 ppb on air

None

+/
-

3.0 us

Table 1: Sync Requirements in Mobile Networks (ON
-
SITE* error limits)

*Note: on
-
site (to the BTS/NodeB) limits shown not on air limits such as +/
-

50 ppb

21

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Adtran, Inc. 2007 All rights reserved


Enabling Standards/Technology


IEEE 802.3ad (LACP)
Link Agg. Control Protocol


ITU
-
T G.8032 (ERPS)
Ethernet Ring Protection


ITU
-
T G.998.2/IEEE 802.3ah
Copper Bonding Protection

Service Assurance

Higher Availability


Business Continuity


SLA Attributes Considered


Long
-
term availability


Switchover/recovery options

















eSHDSL 1

eSHDSL 2

eSHDSL 3

eSHDSL 4

eSHDSL 5

eSHDSL 6

eSHDSL 7

eSHDSL 8

UNI

Bonding
Group

Remote Cabinet Aggregation
for Increased Copper
Data Rate


ITU
-
T G.998.2 EFM Bonding
with Redundant Loops

LACP for Network
Resiliency

Fiber Access


Central Office/Exchange Aggregation at
Ethernet Point of Presence


Small Business or
Suburban Base Station


Ring Protection Switching
for Access Resiliency

Metro Base
Station


Multi
-
Tenant
Building


22

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Adtran, Inc. 2007 All rights reserved

Quality of Experience (QoE)

Delivering Low Latency, Jitter


ADTRAN Carrier Ethernet solutions incorporate the
following features to support latency sensitive traffic
requirements.


Ingress traffic mapping/ prioritization based on port, customer
VLAN or p
-
bit marking.


Up to 8 Class of Service queues per port


Strict and Weighted Fair Queuing


Priority based rate shaping on egress ports

23

®

Adtran, Inc. 2007 All rights reserved

Service Level Agreement Requirements

Table 2: SLA requirements for Mobile Networks (error limits)

SLA attribute

MUST support

SHOULD support

2
-
way Latency (ms)

10

<5

Jitter (ms)

+/
-

1

+/
-

1

BER & FER

10
-
9

&

10
-
6

10
-
11
&

10
-
7

Availability (%)

99.99

99.999

MTTR (Hrs)

4

2

Failover (ms)

50(150 for Voice)

50

24

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Adtran, Inc. 2007 All rights reserved

CIR and EIR Bandwidth Profiles

Configurable,

Guaranteed Connections


Confugurable 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


CBS, EBS
-

size of burst window (ms)
for allowed CIR / EIR rates


Total UNI Bandwidth

EVC1

EVC2

EVC
3

EIR


2 rate, 3 Colour marking


Marking typically done at ingress port of service provider equipment


Green


Forwarded frames


CIR conforming traffic


Yellow

Discard Eligible frames


Over CIR , within EIR


Red


Discarded frames


Exceeds EIR

25

®

Adtran, Inc. 2007 All rights reserved

Configurable Weighted Fair Queuing
Any set of 4 or 8 Queues (EF, 2 or 6 AF, BE)

TA5000 AM and NV8044M

EF=expedited forwarding

AF=assured forwarding

BE=best effort

Egress

Port

Ingress

Ports

Classifier

Assign To

Queues Based

On Class of
Service

P

P

P

P

P

P

Classifier

P

P

P

P

P

P

.

.

.

Classifier

P

P

P

P

P

P

Strict/

WRR

EF

AF

BE

User
-
1

User
-
2

User
-
N

.

.

.

Configurable for up
to 8 queues

Egress shaping
done here


Per port and / or
per port per queue


N*64 kbps
granularity

26

®

Adtran, Inc. 2007 All rights reserved

ADTRAN Ethernet OAM

IEEE 802.1ag

ITU
-
T Y.1731

Detection







Notification







Verification







Isolation







IETF TWAMP

ITU
-
T Y.1731

Delay







Jitter







Loss







Multiple paths for both Fault & Performance Management

Connectivity Fault
Management (CFM)

Performance
Management

IEEE
802.3ah
Link OAM

27

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Adtran, Inc. 2007 All rights reserved

Quick Reference Guide


EthOAM

Standard

Protocol/Mechanism

Detection


There is a loss of signal

802.1ag/Y.1731

ETH
-
CC

Loss of connectivity

Unintended connectivity between two MAs or within an
MA; Incorrect MD Level or period

802.3ah

Link monitoring

Loss of link

Failure to receive Information OAMPDU

Standard

Protocol/Mechanism

Notification


Fault triggers

802.1ag/Y.1731

RDI bit of CCM

Loss of CCMs

Y.1731

ETH
-
AIS

Loss of CCMs

Local defect

E
-
LMI

Status

EVC change

802.3ah

RFI bit of OAMPDU

Link Fault; Dying Gasp; Critical Event

802.3ah

Event Notification

Threshold crossing

Standard

Protocol

Fault Verification


Has the circuit failed?

802.1ag

ETH
-
LB

Verify connectivity between two MEPs

Y.1731

ETH
-
LB

Verify connectivity between one MEP & all peer
MEPs

Standard

Protocol

Fault Isolation
-

Where has the circuit failed?

802.1ag/Y.1731

ETH
-
LT

Determine points of reach

Discover MIPs

28

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Adtran, Inc. 2007 All rights reserved

ADTRAN Operations Environment

Strong Decision Support

Fault Response

Advanced testing, troubleshooting
and diagnostics

Flexible Integrated Security

Fully Integrated from Planning to Operations to Customer Service

Intelligent Service Activation

Application awareness

OSS integration via Robust Modular
Gateway/Network Automation
Interface (TL1/XML)




Advanced PM, Traffic and Capacity
Management


Performance Monitoring/Trending


Traffic Engineering/Network
Tuning


VQM/DQM



29

®

Adtran, Inc. 2007 All rights reserved

Barrier to Next
-
Gen Mobile Backhaul

Lack of Single, Simple Operational Model


Lack of Fiber to Cell sites


Less than 20% penetration



Lack of Single, Simple
Operational Solutions:


Need the new T1.



Many different ad hoc
Operational models for different
mobile models


TDM


ATM


Microwave


Fiber


DS


DS3


SONET/SDH


30

®

Adtran, Inc. 2007 All rights reserved

A Single Centralized Solution

Single Platform, Common OAM&P, Full Coverage


Single Service and Maintenance
Launch Point


Full suite of dedicated, low cost
Ethernet Access Gateway for
every access medium

31

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Adtran, Inc. 2007 All rights reserved

Hybrid Copper / Fiber NetVanta

Fiber trench can be time, cost prohibitive


Accelerated Time To Market for 100Mbps 4G/LTE/NGMN

Graceful Path to Fiber Access

TA5000

10/100/1000
Mbps

Initial EoCu provides
time
-
to
-
market and
revenue capture

Planned EoF
facility

TA5000

10/100/1000 Mbps

Initial EoCu Facility
provides diverse
path

EoF facility
available

Increased
Bandwidth Demand

ADTRAN

NetVanta 8044M

Modular NTE


Customer Interfaces/
Services remain
untouched


No secondary site visit to
install/commision EoF
service


No re
-
provisioning of
service.


Service/SLA transparency


‘One
-
button’ service push;
Bandwidth on Demand
Service

32

®

Adtran, Inc. 2007 All rights reserved

Introducing Modular Ethernet Access

Delivering the New T1 (and E1)


Complete Vision of Single
Operational Model


Single Service and Maintenance
Launch Point


Single, Versatile, High Value
Ethernet Access Gateway for
every access medium

33

®

Adtran, Inc.
2007
All rights reserved

Introducing the NetVanta 8044M

TA5000 8
-
port Gigabit Ethernet Access Module


8 GigE SFP cages


Link Aggregation


Link OAM


NetVanta 8044M


4
-
10/100/1000BaseT WAN or LAN


4
-

GigE SFP WAN or LAN


2
-

Expansion Slots


1 and 2.5G ERPS Ring support with optical bypass option.


Clock Sync over Packet Ready e.g. G.8261/62 SyncE


Dual fed DC options (+/
-
24V,
-
48V DC)


Carrier Ethernet


MEF 9, 14, 18


Eth OAM CFM and PM


TACASC+ and RADIUS Authentication, Authorization

8
-
port GigE
Access Module

NetVanta 8044M Modular NTE

34

®

Adtran, Inc. 2007 All rights reserved

NetVanta 8044M Expansion Modules


TDM over Packet Service Delivery


CESoPSN, SAToP, MEF8 standards


GR
-
1089 Metallic Isolation



GPON Access


2.5Gbps


Fixed Optics


OMCI & Carrier Ethernet Mgmt



Ethernet over Copper Access


Ethernet over Copper (ULL)


ITU
-
T G.998.2 Bonding (45Mbps)


GR
-
1089 Metallic Isolation


Other Expansion Modules for Phase II


2
-
port OC3/12 STM1/4 Access


8
-
port DS1/E1 GFP Access


8
-
port 10/100 BaseT Service


4
-
port VDLS2 Access


1
-
port DS3 GFP Access

8
-
port DS1/E1 CES

Service Module

8
-
port e.SHDSL

Network Module

GPON ONU

Network Module

NetVanta 8044M Modular NTE

35

®

Adtran, Inc. 2007 All rights reserved

GigE to the Cell Site

Service Expansion to Multiple WSP


Carrier

Ethernet

Network

Central Office/

Exchange

GigE

10/100/1000

8xDS1 & Clock Sync

10/100/1000

8
xDS
1
& Clock Sync

Cell

Site

Cell

Site

8 port

EoFiber

AM

CWDM

Modular NTE

NV8044M

NV8044M

Modular NTE

NetVanta 8044M

8 port PW Service Module

DS1

2
xGE or

2x10GE

TA5000 MSAP

TA5000 MSAP

Carrier

Ethernet

Network

Central Office/

Exchange

GigE

10/100/1000

8xDS1 & Clock Sync

10/100/1000

8xDS1 & Clock Sync

10/100/1000

8xDS1 & Clock Sync

10
/
100
/
1000

8xDS1 & Clock Sync

Cell

Site

Cell

Site

8 port

EoFiber

AM

8 port

EoFiber

AM

CWDM

Modular NTE

NV8044M

NV8044M

Modular NTE

Modular NTE

NV8044M

NV8044M

Modular NTE

NetVanta 8044M

8 port PW Service Module

NetVanta 8044M

8
port PW Service Module

DS1

2xGE or

2x10GE

TA5000 MSAP

TA5000 MSAP

36

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Adtran, Inc. 2007 All rights reserved

GPON to the Cell Site

Justifying FTTH to Low Density Areas

Carrier
Ethernet
Network
Central Office/
Exchange
NetVanta 8044M
8 port PW Service Module
GPON
NetVanta 8044M
GPON ONT Module
10/100/1000
8xDS1 & Clock Sync
10/100/1000
8xDS1 & Clock Sync
2
-
port
OLT
AM
Cell
Site
Cell
Site
Modular NTE
NV8044M
NV8044M
Modular NTE
DS1
2xGE or
2x10GE
TA5000 MSAP
TA5000 MSAP
Carrier
Ethernet
Network
Central Office/
Exchange
NetVanta 8044M
8 port PW Service Module
NetVanta 8044M
8 port PW Service Module
GPON
NetVanta 8044M
GPON ONT Module
10/100/1000
8xDS1 & Clock Sync
10/100/1000
8xDS1 & Clock Sync
10/100/1000
8xDS1 & Clock Sync
10/100/1000
8xDS1 & Clock Sync
2
-
port
OLT
AM
2
-
port
OLT
AM
Cell
Site
Cell
Site
Modular NTE
NV8044M
NV8044M
Modular NTE
Modular NTE
NV8044M
NV8044M
Modular NTE
DS1
2xGE or
2x10GE
TA5000 MSAP
TA5000 MSAP
37

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Adtran, Inc. 2007 All rights reserved

Mobile Backhaul ERPS Application

Drop & Continue Ethernet & TDM service

1
-
500Mbps

Ethernet

typical

1
-

16
x
DS
1
/E
1

1
-
16 x DS1/E1

1
-
500Mbps

Ethernet

1
-
16 x DS1/E1

1/2.5Gbps ERPS Ring


3Gbps LAG


Up to 64 nodes

From
Up Stream
1Gbps or
2.5Gbps
ERPS Ring

Continue
Down Stream
Remainder of
1
Gbps or
2.5
Gbps ERPS
Ring Capacity

Drop Customer
1


1000 Mbps
Ethernet
Service
-


E.G. avg.
150Mbps

Drop
Customer
TDM 1
-

16
DS1/E1
Service

4Gbps LAG via
TA5000 8
-
port
GigE AM


3Gbps LAG


3
rd

party Eth Switch


OR


CES traffic

SyncE

Any to any ELAN

38

®

Adtran, Inc. 2007 All rights reserved

Barriers to Packet
-
backhaul


Fiber/Ethernet availability, weak Ethernet business case, and lack of
confidence in packet
-
based solutions hold back lower cost solutions

Source: Infonetics 2009

ADTRAN solutions focused on eliminating these barriers

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