DISC - 1 day tcp/ip introduction 
------------------------------------------------------------------------------
- Jim Binkley
- jrb@cs.pdx.edu
- http://www.cs.pdx.edu/~jrb
- http://www.cs.pdx.edu/~jrb/tcpip.html

suggested texts for further study:

	TCP/IP Illustrated. The Protocols. Volume 1. W. Richard Stevens.
	Addison-Wesley. 1994. ISBN 0-201-63346-9. 

	Unix Networking Programming. Stevens. ISBN 0-13-949876-1.
	(Highly recommended -- especially for information on
	programming BSD sockets).

topic outline:

intro
	tcp/ip - family of protocols

	internet basics  (telnet/ftp/www) - use the inet to get more
		info about the inet
		get rfcs/drafts from internet repositories

	what we will talk about
		up through  TCP/IP layers including a few apps
			tcp: ftp/www/telnet/email
			udp: DNS/udp,  nfs
		BSD socket api

	initial concepts
		encapsulation
		layering
		major protocols
		client/server model
		ietf and internet society
			rfcs/drafts standardization
			protocol design work

	a few books

link-layer
	topologies
		basic: point to point and broadcast/multicast(bus)
		derived: mesh, ring
		 
	lan versus wan
		lan, ethernet, token ring, wireless lans
		wan, analog phone lines with modem xfer, leased lines, t1, t3,
			wireless wans
		packet/circuit switches

	ethernet 
		how it works, broadcast
		addressing
		packet headers

	point to point
		tcp/ip hides telco universe in link-layer 
			"not our problem"...
		slip/ppp
		mtu
		localhost i/f

	repeaters/bridges/routers
		bridges
			adaptive
			switched

network layer/arp
	basic idea
	protocol
	a few variations
		proxy arp
		promiscious arp
	test understanding so far:  how does arp work?

network layer/ip
	nature of ip (unreliable datagram, no QOS, routing)
	ip addresses
		classes
		subnetting
			class B subnet example
	ip header
	routing 
		architectural model
		algorithms
			basic ip forwarding
				arp flaw
			routing in linux
			routing in BSD (netBSD, freeBSD, SunOS?)
	test of understanding:
		how to construct class C subnet architecture

network layer/icmp
	icmp rules
	message types
	some basic tcp/ip networking utilities
		ping 
		traceroute

network layer/intro to routing
	concepts
		architectural model for routing daemons
		routing topologies
			same link
			intradomain
			interdomain
			interior gateway protocols/exterior gateway protocols
		distributed routing algorithms
			link state-versus vector-distance
			congestion, convergence
			scalability
	rip/rip-2
		test of understanding:  rip convergence
	ospf
	cidr
	quick words about interdomain routing protocols
		bgp

transport/udp
	udp philosophy
		udp ports - arch. implications
		checksums
		in general, ip with ports
	psuedo-header
	what is udp for?
		arch. model a la UNIX

transport/tcp
	nature of tcp
	tcp "socket"
		architectural client/server model a la UNIX
	tcp state machine/startup shutdown
	sliding window protocol
		delayed acks
		nagle
		roundtrip timer
		congestion control
	tcp efficiency
	what is tcp for?

apps/dns
	fundamental, but still an app
	naming
	protocol
	how it works
		message oriented on top of udp
		client/server 
	caching/authoritative servers/ttls
	
apps/SMTP/e-mail
	tcp/file xfer
	architectural model
	protocol
	MIME for non-ASCII data xfer

apps/www
	introduction
	clients/servers
	protocols
		how it works
		HTTP/HTML

apps/telnet
	virtual terminal/tcp
	architectural model
	protocol

apps/ftp
	tcp/file xfer
	ftp arch. model
	bsd client
	protocol design

apps/nfs 
	udp/remote file system
	architectural model 
	Sun RPC/XDR protocol model

whirlwind tour of BSD socket api via examples - optional?
	tcp versus udp as application "transports"
	tcp client/server examples
	udp client/server examples

optional:
bootstrapping (if time permits) - optional?
	flaw in IP and how it is imperfectly "addressed"
	icmp
	rarp
	bootp
	dhcp