WAN

One of the Types of Network is WAN

  • When two or more computers or communicating devices or Network which are Geographically separated but not within the same Metro city, if connected are said to be connected on WAN.

  • The most commonly used Data-Link Layer protocols are Ethernet, HDLC & PPP where Ethernet is used in LAN Whereas HDLC & PPP are used in WAN.

  • WAN like Ethernet LANs uses Physical Layer Standards as well as Data-Link Layer to connect two or more distanced LANs with the help of a Router.

  • There are two types of WAN:

    • Leased Line WAN

      • Although less commonly used still it has been an option for networks for half a century.

    • Ethernet WAN (EoMPLS)

      • Uses the same Data-Link Protocols as Ethernet LANs + Additional features to make the link work for longer distances.

References:

  • RST Notes

  • CCNA 200-301 OCG, Volume 1, Pg. 60 - Wendell Odom.

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