Year II
Wide Area Networks
,Outline
• WAN
• WAN Topologies
• WAN in ISO/OSI
• WAN Terminologies
• WAN Devices
• WAN Link Connections
• How to select a WAN link connection
,WIDE AREA NETWORK (WAN)
, WIDE AREA NETWORK (WAN) CONT.
• Operates beyond the geographic scope of a LAN.
• Used to interconnect the enterprise LAN to remote LANs in branch sites.
• Owned by a service provider (LAN is owned by an organization).
• Service providers provide links to interconnect remote sites for the purpose of transporting data,
voice, and video
• An organization must pay a fee to use the WAN service provider’s network services to connect
remote sites.