WANS and ROUTERS WANS and ROUTERS Presented by Les McLellan Dean Whittaker Sandy Workman
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WANS and ROUTERSWANS and ROUTERS
Presented byLes McLellan
Dean WhittakerSandy Workman
WANS and ROUTERS
®What is a WAN?®WAN Devices
®WAN Standards®WAN Technologies®What is a Router ?
®Summary
What is a WAN?
®A Data Communications Network®Network Services provided by PTO’s®Relatively broad geographic area®Serial connections of various types and
speeds®Provide full and part time connectivity®Technologies function at the lower three
layers of the OSI Model
Wide Area Network Devices
®Routers
®WAN Bandwidth Switches
®Modems
®Comms Servers
WAN Standards
®Defined and Managed by recognized authorities
®WAN’ s use the OSI reference Model
®WAN Physical Layer standards specify the interface
® WAN data Link protocols
The WAN Physical Layer
®EIA/TIA 232®EIA/TIA 449
®V 24®V 35®X 21
®G 703®EIA-530
Serial Interface Adaptor Cables
The WAN Data Link Layer
®High Level Data Link Control (HDLC)
®Frame Relay®Point to Point Protocol (PPP)®Serial Line Interface Protocol (SLIP)
®Cisco / IETF® ISDN
WAN Technologies
®Dedicated Lines
®Switched Connections® (Circuit Switched)® (Packet Switched)
®Other WAN Technologies
Dedicated Lines
®T1 – 1.544 Mbps
®T3 – 44.736 Mbps
®E1 – 2.048 Mbps
®E3 – 34.368 Mbps
®Other Bandwidths are also available
Switched ConnectionsCircuit Switched
® POTS
® ISDN
Packet Switched
® X 25
® Frame Relay
® ATM
® SMDS
Other WAN Services
®Dial Up Modems
®Cable Modems
®Wireless
ROUTERS
®Internal Components
The Function of a Router
WANS and ROUTERS
®Summary
®Data Communication Networks that operate over a large area using Serial Links
®Routers are active intelligent nodes used to manage a network
WANS and ROUTERS
THE END
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