4.2 What's inside a router? Part 2.

Video presentation: Network Layer: What's inside a router, part 2. Input and output port queueing, buffer management, packet scheduling, network neutrality
Computer networks class.
Jim Kurose
Textbook reading: Section 4.2.4 and 4.2.5, 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.

[@mntm9]

Thanks a lot, Prof. Greate lectures supporting your great textbook.

[@cheddargt]

You're absolutely the best at explaining this stuff. Thank you so much!

[@salma-amlas]

you're a living legend! thank you for your work

[@bobjones1196]

What a great lecture from one of the best in the world, I love your lectures and love how passionate you are, if only my professor cared as much.

[@mrbandit1334]

Greetings from Germany Thanks for this awesome lecture

[@kHADIQUAFAZAL]

Sir your lectures are very helpful in understanding the concepts

[@manroopsinghnanda6138]

Thanks for saving me during my exam time!

[@nicoledaniels622]

good performance 😀🤘🏼

[@iconekand]

Priority Scheduling please for more examples

[@davidkang968]

This hits different since Twitch is leaving Korea now.

[@dayssnow1049]

Packet Scheduling and Buffer Management inside a Router
00:08 Packet scheduling and buffer management are crucial for controlling packet loss and delay.
02:19 Buffering and congestion at the output port.
04:32 The amount of buffering in a router is a complex issue.
06:52 Output port buffer is crucial for managing global internet scale behavior.
09:13 Packet scheduling disciplines in routers
11:33 Traffic can be classified into priority classes based on type, source or destination addresses, and company's willingness to pay for better service.
13:55 Weighted fair queuing allows bandwidth guarantees on a per-class basis.
16:21 Three bright-line rules associated with network neutrality
18:36 No paid prioritization rule prevents unequal treatment of streaming traffic providers.
20:47 The Internet's policies and governance are still evolving.

[@vohu7640]

6:03

[@noonenooo2843]

WFQ poorly explain