4.1 Introduction to the Network Layer

Video presentation: Network Layer: Introduction. Network-layer services. Routing versus forwarding. The network-layer data plane and control plane. Service models, best-effort service.
Computer networks class.
Jim Kurose
Textbook reading: Section 4.2.1, 4.2.2 and 4.2.3, Computer Networking: a Top-Down Approach (8th edition), J.F. Kurose, K.W. Ross, Pearson, 2020.
See gaia.cs.umass.edu/kurose_ross for more open student resources.

[@nirmalkarthik5892]

You are a saint for creating and sharing these! Thank you so much Professor Kurose!

[@RED_PRODUCTION_]

I love your videos the way that you teach makes me actually want to learn.

[@onurcanisler]

Thank you, Professor!

[@devmahad]

For future me: introduction of how the network layer works. The local idea and the global idea of how the packets are transmitted from each end of the network to the other end of the network and how the router knows where it is going to receive the packet and where it was going to send that packet. That was one of the most interesting pieces of softwares that the mankind ever built.

[@526Dude]

I appreciate you Jim

[@ricp]

"It might appear that *best-effort service* is a euphemism for *no service at all*" -- that was great!

[@aliknany6166]

I'm reading the book, Is this playlist covers it all ? Or should I continue to read the book anyway ? Thank you.

[@siyanliu1091]

it doesn't cover chapter 8 as I understand. Take a look at his website where all the programming assignments, quiz, slides etc are posted.

[@NM0S.]

Thanks professor

[@dayssnow1049]

Data Plane Fundamentals for Internet Connectivity 00:08 network layer and its essential role in networking. 01:53 Network Layer functions 03:48 Routers forward data grams locally and are coordinated globally for end-to-end path. 05:39 Difference : forwarding and routing 07:31 compute forwarding tables (traditional and Software Networking approaches) 09:32 Network layer service model is best effort without guaranteed delivery or bounded delay. 11:26 Overview of network architectures and QoS classes 13:31 Best-effort service and distributed infrastructure

[@karanpreetsingh5966]

From end to end, your beauty hints of endless possibilities. ♥ ❤ ❥ ♥ ❤ ❥ ♥ ❤ ❥ ♥ ❤ ❥

[@xiangqerupiso9186]

runs well enough most of the time laughs in german

[@tahliadelamare8315]

laughs harder all over Australia!

[@YungZenk]

Between 9:10 & 9:30 (SDN section) what is the meaning of "CA" inside the local router(s)?

[@YungZenk]

Control Agent. found in the slide. thanks.

[@klevisimeri607]

🧠

[@user-ip5sz7hk6h]

jemand von der Hhu ?