Physical Network Basics prepared by Jason Lee Davis.
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Transcript of Physical Network Basics prepared by Jason Lee Davis.
Physical Network BasicsPhysical Network Basicsprepared byprepared by
Jason Lee DavisJason Lee Davis
Multipoint TopologiesMultipoint Topologies
Linear Linear -AKA--AKA- Bus Bus Traditional Bus, 32 nodes maximumTraditional Bus, 32 nodes maximum
RingRing Scalable, high bandwidth, fault tolerantScalable, high bandwidth, fault tolerant
StarStar Basic distribution from hubsBasic distribution from hubs
TreeTree Cascading StarsCascading Stars
SwitchSwitch Star with hub providing switching functionStar with hub providing switching function
MeshMesh Parallel processors (Intel Paragon), Parallel processors (Intel Paragon),
SupercomputersSupercomputers
Linear Linear oror Bus Bus
RingRing
StarStar
SwitchSwitch
TreeTree
MeshMesh
AREA NETWORK BUSESAREA NETWORK BUSESPrototypePrototype
BusBus Standard Standard Data RateData Rate
ATMAsynchronousTransfer Mode
ISO/ITU 300 MBytes/s
FDDIFiber DistributedData Interface
ISO 9314-x 12 Mbytes/s
100baseEthernetFast Ethernet
IEEEP802.14
12 Mbytes/s
Ethernet IEEE 802.3-1990
1.2 Mbytes/s
SONETSONETSynchronous Optical NETworkSynchronous Optical NETwork
Uses Optical Carrier (OC)Uses Optical Carrier (OC)
Bandwidth in multiples of 51.84 Mbps…Bandwidth in multiples of 51.84 Mbps…OC-1 = 51.84 MbpsOC-1 = 51.84 Mbps
OC-3 = 155.52 MbpsOC-3 = 155.52 Mbps -ATM-ATM
OC-12 = 622.08 MbpsOC-12 = 622.08 Mbps -Prototype ATM-Prototype ATM
OC-48 = 2488.32 MbpsOC-48 = 2488.32 Mbps
OC-192 = 9953.28 MbpsOC-192 = 9953.28 Mbps
……etc.etc.
Ethernet Protocol ChannelsEthernet Protocol ChannelsBase Cable Type Data Rate Length ConnectorBase Cable Type Data Rate Length Connector
10base-5ThickNet
Coax50ohm
10 Mbps 1640' AUI
10base-2ThinNet
Coax50ohm
10 Mbps 600' BNC
10base-T UTP/STPCategory 5
10 Mbps 328' RJ45
100base-TX UTP/STPCategory 5
100 Mbps 328' RJ45
100base-T4 UTP/STPCategory 3
100 Mbps 328' RJ45
100base-FX Multi-modeFiber
100 Mbps 6562' Optical
Cable VarietiesCable Varieties
CoaxCoax Twisted PairTwisted Pair Fiber OpticFiber Optic
Network InstallationNetwork Installation
Directional BoringDirectional Boring
Network InstallationNetwork Installation
Fiber Optic Cable InstallationFiber Optic Cable Installation
Telco ConnectionsTelco Connections
POTS POTS “Plain Old Telephone Service” (analog)“Plain Old Telephone Service” (analog)
56 kbps56 kbps
Narrowband ISDN - BRI Narrowband ISDN - BRI (Basic Rate Interface)(Basic Rate Interface) (digital)(digital)
2 X 64 kbps 2 X 64 kbps (B channels)(B channels) + 16 kbps + 16 kbps (D channel)(D channel)
Broadband ISDN - PRI Broadband ISDN - PRI (Primary Rate Interface) (digital)(Primary Rate Interface) (digital)
23 X 64 kbps 23 X 64 kbps (B channels)(B channels) + 16 kbps + 16 kbps (D channel)(D channel)
T1 T1 (digital)(digital)
1.544 Mbps1.544 Mbps
T3 T3 (digital)(digital)
45 Mbps45 Mbps
Example “Campus” NetworkExample “Campus” Network