Enterprise Networking Week 6

Spring 2021, Mondays 5:30-8:00

March 1

(No class next week; our next class is March 15)

After running mininet, the backspace key may not work. Fix it with this:

stty erase ^H

(where ^H is how the backspace key appears in one of the terminal windows before things are fixed.)

Reno v Vegas demo

Simulating high-bandwidth-TCP problem

Reno v Cubic, with default renocubic.py settings (DELAY=200, QUEUE=400)

What is wrong?

Phase Effects

    using randomtelnet.py

IPv6

    ping facebook.com

    review of how routing works

Queuing and Scheduling

Token Bucket

    Bucket=1/60 second

History of "real-time internet"

    UDP

    Zoom and CDNs

Integrated Services v Differentiated Services

CDN alternative to IntServ

MPLS