Comp 343/443-001 Week 2 notes
Start with IP routing, and the net/host division.
IP layer: from
1.10
Class A/B/C addressing system
administratively assigned
network prefix v host portion; what this means for scalability
IP version of
datagram forwarding
hierarchical routing
backbone
best-effort
why does IP support fragmentation?
connectionless
virtual circuits
IP routing
next_hop
local delivery
IP addressing
Ethernet: mixture of 1.9 and Chapter 2
10 Mbps
classic Ethernet
broadcast bus
collisions: meant to be normal
CSMA/CD
physical v logical layer
Network Interfaces and packet delivery
eavesdropping
multicast addresses
Ethernet diagram with NIs
Ethernet collision timeline
scaling Ethernet to 100 Mbps, etc
scaling problems
switched full duplex => collision-free!
basic Ethernet-switch learning algorithm
1.11: DNS
nslookup, dig, host
1.12: Transport
TCP goals
TCP interface
1.13: Firewalls
1.14: NAT
Back to Ethernet:
Spanning-tree algorithm
VLANs
Brief look at SDN
Chapter 3:
3.1: VLANs
3.2: Carrier Ethernet
3.3: VPNs
(skip Virtual Circuits and ATM for now)
3.6: Radioland
3.7: Wi-Fi (3.7.1-3.7.4; maybe some 3.7.5-3.7.7)
collision basics