Ethernet Last Mile Topology Considerations Chris Di Minico Director Network Systems Technology CDT Corporation
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Ethernet Last MileTopology Considerations
Chris Di MinicoDirector Network Systems TechnologyCDT Corporation
LECLocal Exchange Carrier
IECInter Exchange
Carrier
RT
DistributionToll Trunk
LATA Boundary
InterlataInterofficeLoop
TrunkFeeder
Switch
Network Boundaries
Last mile,First Mile
Customer Premise
Home
Customer Premise
Internet DataCenter
Local Loop-last mile
Central Office- Distribution Node
BackboneCentral Office- Distribution Node
Local Loop-last mile
Customer Premise
Internet DataCenter
Current Infrastructure
HomeSOHO
HomeSOHO
Access Technologies Network Devices
Service•Voice/Data•Management•Security
Customer Premise
Internet DataCenter
Local Loop-last mile
Central Office- Distribution Node
BackboneCentral Office- Distribution Node
Local Loop-last mile
Customer Premise
Internet DataCenter
Voice Application Infrastructure•Voice over Internet Protocol •Voice over ATM•Voice over HDLC•Voice Compression over (T1/E1, ISDN)
•Multi-protocol Conversions–T1/E1 to ATM, etc..
Voice Application Infrastructure
HomeSOHO
HomeSOHO
Customer Premise
Internet DataCenter
Local Loop-last mile
Central Office- Distribution Node
BackboneCentral Office- Distribution Node
Local Loop-last mile
Customer Premise
Internet DataCenter
Voice/DATA Infrastructure•Voice over Internet Protocol (Ethernet)
Voice/DATA Application Infrastructure
HomeSOHO
HomeSOHO
Customer Premise
Internet DataCenter
Service ProviderLocal Loop•CustomerLease
Service provider - Distribution Node
Service ProviderBackbone•Customerlease
Customer Premise
Internet DataCenter
DATA/Voice Infrastructure (Ethernet)
•Voice over Internet Protocol (Ethernet)•eliminates central office protocol conversions•customer bandwidth on demand – (10 Mb/s,100 Mb/s, 1000 Mb/s,10 Gb/s)
Service provider - Distribution Node
Service ProviderLocal Loop•CustomerLease
DATA/Voice Convergence Infrastructure (IP - Ethernet) -
HomeSOHO
HomeSOHO
•Reengineering of the telecommunication infrastructure occurring in traditional and specialized environments.
•Each distribution environment has unique requirementsof form, fit, and function.
•The Internet Cabling Distribution environments
– Internet data centers– Central office– Multi-tenant Buildings– Small and Home Office
Internet Cabling Distribution Environments
• Network infrastructure required to drive web hosted Internet applications.
• Internet data center space is growing in millions of square feet each year.
Internet Data Centers
MultiMulti--Tenant Services Tenant Services -- LAN InfrastructureCustomer Premise Cabling - TIA/EIA-568-A
HC
HCTO
ICMC
HC
HC
HC
HCTO
IC
HC
HC
LAN TPTO
Interbuilding backbone2000 m
Intrabuilding backbone500 m
Horizontal Cable100 m
Voice and Data - In-building bundled Services•Infrastructure Cabling •local and long distance phone•Internet access•WAN and LAN connectivity
Service Provider Distribution NodeService Provider Distribution Node-- Central OfficeCentral Office
1985 1990 1995 2000
10 Mb/s
100 Mb/s
1 Gb/s
10 Gb/s
2005
10 Mb/s Ethernet
100 Mb/s Ethernet
1 Gb/s Ethernet
10 Gb/s Ethernet (LAN)
DS3 (44.736 Mb/s)
OC- 3 (155.52 Mb/s)
DS1 (1.544 Mb/s)
OC- 48 (2.48832 Gb/s)
OC- 12 (622.08 Mb/s)
OC- 192 ( 9.58464 Gb/s) (WAN)Convergence Data Rate
10 Gb/s Convergence Data Rate -LAN/WAN/SAN
SONET Infrastructure
2.5 Gb/s InfiniBand
InfiniBand (10 Gb/s) (SAN)
Last Mile Cabling Performance
• Transmission performance (distances)– twisted pair copper (taps)– coax– fiber– hybrid
Installed CablingInstalled Cabling Issues
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