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6 Cards in this Set
- Front
- Back
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Difference between WANs, LANS |
You pay for and own LANs, but you lease WANs. With LANs, you buy the cables and LAN switches and install them in spaces you control. WANs physically pass through other people’s property, and you do not have the right to put your cables and devices there |
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Function of leased line WANs |
forwarding data between two routers
one main goal for a WAN is to move data between LANs |
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most popular data link layer protocols used for leased lines between two routers |
High-Level Data Link Control (HDLC) and Point-to-Point Protocol (PPP). |
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HDLC header flag field |
Same as Ethernet preamble |
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Proprietary Cisco HDLC |
Adds type field |
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EoMPLS service provides |
A point-to-point connection between two customer devices
Behavior as if a fiber Ethernet link existed between the two devices |
