Embed Size (px)
DESCRIPTION
Communities want broadband choices, people want high speed access at reasonable prices. This presentation, uses the historic seaport of Newburyport, Massachusetts to illustrate the likely options, challenges and issues facing communities across the nation.
Citation preview
Introduction to Newburyport Residential BroadbandGreg Whelan
Greywale Management
Agenda
• Introduction• Newburyport Broadband Options• Most Prevalent (DSL and Cable)• Technical Limitations• Fiber 101 & Technical Limitations• Last Mile Issues• Broadband in Your Home• Why no FiOS in Newburyport?• City Network Options and Issues• Final Comments
Broadband Background
Winner
Introduction
The Internet
Your Goal: Connect to the Internet
Netflix
Introduction (Part II)
The Internet
Netflix
“Simplified” Network Architecture
PrivateBackbone
Interconnect
NationalCustomer
Care CenterNetwork
OperationsCenterPublic
BackboneInterconnect
VoiceComplex
Service Control
Security(SCE…)
IP MediaServices(CDN)
OSS/Billing
CoreMetroAccessHome
6500
Metro Transport N
etwork
IP ContentControl Center
Modulator
OpticTransmitters
Core IP Router(CRS-1)N
ational/Regional Transport
Mux DBDS
Mux
OpticTransport
CRS-1HSD
VODServers
ADServersEncoders
6500
SatReceivers
Demodulator
CMTS10K
Optics
IPSwitch
IPSwitch
eMTA
CM
QAMTapsSTB
Amps
Amps
Access Netw
ork
CMMTA
Newburyport Broadband(Options)
The Internet
Netflix
VerizonCentral Office
ComcastHead End
Cell Tower(Near State Police)
Phone/DSL
Wireless
Satellite
Power
Cable
Most Prevalent “Wireline” Options Today
COAX/Cable Modem,
Copper/DSL
CMTS = Cable Modem Termination System
DSLAM = Digital Subscriber Line Access Multiplexer
The “Last Mile”
Comcast Headend(Hale Street)
Verizon CO(Green Street)
“Tree and Branch”Architecture
“Home Run”Architecture
The Internet
Netflix
What do they look like?
DSLAM (Alcatel)
CMTS (Arris)
Bandwidth Limitations• Both architectures have asymmetrical
data rates due to RF Frequency issues– High downstream (To the home) than
upstream (Away from the home)– Usually not an issue because traffic flows are
asymmetrical as well• Web Surfing, Video/TV
• Cable has a shared upstream (tree and branch) which can lead to congestion (slower performance) during peak hours
• DSL has dedicated upstream but connection from the DSLAM to the Internet is “Over Subscribed”– Note: FiOS uses a Passive Optical Network
(PON) architecture which is similar to the HFC architecture except the fiber terminates on each home
“Downstream” 3M to 20 Mbps
“Upstream”500Kbps to 4 Mbps
To Internet
Fiber?
COAX
TwistedPair
Comcast Headend(Hale Street)
Verizon CO(Green Street)
Fiber
FiberIf we had
FIOS
Cable is a Hybrid-Fiber-Coax Architecture
DSL is a FTTx ArchitectureFiOS is a PON Fiber Architecture
Fiber
Fiber
The Internet
Netflix
FTTx (Fiber to the ____)• FTTH – (1 home) Fiber to the
home• FTTC – (8-16 homes) Fiber to the
curb– Copper to the home with higher speed DSL (Shorter
distance, less signal attenuation)
• FTTN (50-100 Homes) – Fiber to the Neighborhood (or pedestal or cabinet. – Those green boxes, – Longer copper cables = less
bandwidth
• FTTR – Fiber to the Rich
Last Mile Issues
• Expensive and labor intensive to deploy and maintain
• Rights-of-way/Real Estate/Political Issues• Density is key
– Cost per home passed/Cost per home served
• Why don’t we all have fiber today?– $ Billions invested in deployed copper pairs
and coax cable.– New technologies (e.g., DSL and DOCSIS)
continue to improve bandwidth to homes.
Triple Play Distribution (SP)
Coax/Copper
CAT5/6
Copper
Coax
NID
Cable Modem/ DSL Modem
Triple Play Distribution (SP)A little more complex view!
Triple Play Distribution (OTT)
Coax/Copper CAT5/6
NID
VoIP/Skype/Vonage et al
Netflix, Hulu,RoKu
Why No FiOS in Newburyport?• West Newbury has FiOS• Massachusetts has town-by-town franchising• Towns demand quid-pro quo for franchise
– New Fire Truck, New School Wing• Verizon abandoned MA to states with state-wide
franchising– E.g. Texas
• Newburyport is ideal for FiOS– Aerial wiring (e.g. Telephone poles, No need to dig
trenches which are expensive and disruptive)– Dense neighborhoods (can serve many homes per
mile of fiber)– Affluent community (Desire triple-play services and
can pay for them)
City/Metro Options?• City owned Dark Fiber? Regional Broadband?
– Cost to “light it”?– Cost to connect each home?– Interconnect Cost (To Internet)?– Cost to maintain it?– Regulatory/legal issues
• Municipal WiFi?– Been tried in many places..– Cost of each access point X # of access points– Back haul cost? New fiber?– Peak time congestion issues?– Cost to maintain?
Final Comments• Government cannot mandate
deployments– Can only create competitive environment
• Competition (or threat of) is good– Will drive bandwidth up and rates down
• Don’t under estimate what it takes to deploy and maintain last mile solutions
![37787 TEL] Location Inserts v9 · • IX Carriers: KT, LG U+, SK Broadband, KINX • Circuit Carriers: KT, LG U+, SK Broadband, Sejong Telecom, DreamLine Colocation Options: • Rack](https://img.pdfslide.net/doc/110x75/5f71cd679098d814444aff9a/37787-tel-location-inserts-v9-a-ix-carriers-kt-lg-u-sk-broadband-kinx-a.jpg)
