Comp 343/443-001 Week 3 notes

Comment on Datagram Forwarding: the destination should be one and only one entry.


4.1: Radioland
4.2: Wi-Fi (3.7.1-3.7.4; maybe some 3.7.5-3.7.7)
    4.2.1: collision basics; link-layer ACKs
    4.2.2: rate scaling
    4.2.3: MIMO


4.2.4: Access points

    linssid demo (linux utility)

    4.2.5: security
    4.2.7: polling mode

    4.2.8: MANETs and mesh


Wi-Fi monitoring demo
    service NetworkManager stop
    ifconfig wlp3s0 down
    iwconfig wlp3s0 mode monitor
    ifconfig wlp3s0 up
    ifconfig wlp3s0 channel 6

5. VPNs

Token Ring

Carrier Ethernet

Virtual Circuits


6: Links
    Encoding and Framing
        NRZ, etc
        Manchester
        4B/5B
    4.1.5 Framing: how packets are defined

TDM and SONET

7: Packets
    Delay calculations
    Packet size revisited
        size and delay
        size and error recovery

    Checksums: Internet Checksum

    Error-Correcting codes (2D-parity)

Chapter 8:
    stop-and-wait