Basics
Ethernet Packet Format
Here is the format of a typical Ethernet packet (DIX specification); it is still used for newer, faster…
July 21, 2021 · Rajil TLBasics
Basics
10-Mbps Classic Ethernet
Originally, Ethernet consisted of a long piece of cable (possibly spliced by repeaters). When a station transmitted, the…
July 21, 2021 · Rajil TLBasics
Ethernet
We now turn to a deeper analysis of the ubiquitous Ethernet LAN protocol. Current user-level Ethernet today (2013)…
July 21, 2021 · Rajil TLBasics
IETF and OSI
The Internet protocols discussed above are defined by the Internet Engineering Task Force, or IETF (under the aegis…
July 21, 2021 · Rajil TLBasics
Some Useful Utilities
There exists a great variety of useful programs for probing and diagnosing networks. Here we list a few…
July 21, 2021 · Rajil TLBasics
Firewalls
One problem with having a program on your machine listening on an open TCP port is that someone…
July 21, 2021 · Rajil TLBasics
Content-Distribution Networks
Sites with an extremely large volume of content to distribute often turn to a specialized communication pattern called…
July 21, 2021 · Rajil TLBasics
Transport Communications Patterns
The two “classic” traffic patterns for Internet communication are these: • Interactive or bursty communications such as via…
July 21, 2021 · Rajil TLBasics
Transport
The IP layer gets packets from one node to another, but it is not well-suited to transport. First,…
July 21, 2021 · Rajil TLBasics
The Future of IPv4
As mentioned earlier, allocation of blocks of IP addresses is the responsibility of the Internet Assigned Numbers Authority.…
July 21, 2021 · Rajil TL