Introduction to Routing and Packet Forwarding
Router as a Computer
–Describe the basic purpose of a router
- Computers that specialize in sending packets over the data network. They are responsible for interconnecting networks by selecting the best path for a packet to travel and forwarding packets to their destination
- Routers generally have 2 connections:
Data is sent in form of packets between 2 end devices
- WAN connection (Connection to ISP)
- LAN connection
Routers are used to direct packet to its destination
Routers examine a packet’s destination IP address and determine the best path by enlisting the aid of a routing table
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