ITEC 3210 Lecture 5: ITEC3210 - Chpt 5 - Part 2
Document Summary
The transport & network layers (chapter 5), last topic on foundation. Midterm: topic 1 to 4, maybe topic 5 too. Layer 4 is transport layer & layer 3 is network layer. The content of network layer is typically applies to traffic in mans, wans and internet and some bbns but not within access layers, see slides. Routers(chp8,9): there are different type of routers, wireless router is not router and not relevant here, e. g. cisco router. A router connects and organization network to mans/wans/internet and it partially relevant, routers that connect different distributional layers, used at core layer, they apply but for backbones there are other options. Router is mainly used for building a network. We call them routers because they can define path between sender and receiver, it implies there is more than one way to get from source and destination, then routers will find the best way using the criteria and algorithm.