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How physical addressing is performed in WAN?
WAN networks operate as similar to a LAN. All WAN technology classifies the exact frame format a computer uses while sending and receiving data. All computer connected to a WAN is allocated a physical address. While sending a frame to other computer, the sender should supply the destination's address.
Several WANs use a hierarchical addressing scheme which makes forwarding more efficient. Hierarchical addressing scheme divides an address in multiple parts. The simplest scheme divides address into two parts; the first part recognizes packet switch as well as second part identifies computer attached to that packet switch.
Example of Hierarchical addresses in WAN
The figure demonstrates each address as a pair of decimal integers. To port 6 on packet switch 2 a computer connected, which is assigned address [2,6].
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