Inhalt
In diesem Proseminar werden Themen rund um Rechnernetz behandelt. Dabei
gibt es Themenbereiche aus der gesamten Bandbreite der Schichten des
ISO/OSI-Modells.
Themen
Die folgenden Themen stehen zur Vergabe. Siehe auch unter
Literatur.
-
Spread Spectrum
Spread Spectrum is an important
form of encoding for wireless communications. The use of spread
spectrum makes jamming and interception mor difficult.
(Stallings, Kapitel 9)
-
Asynchronous Transfer Mode
ATM is a streamlined packet
transfer interface. ATM makes use of fixed-size packets, called cells.
The use of a fixed size and fixed format results in an efficient scheme
for transmission over high-speed networks.
(Stallings, Kapitel 11)
-
Cellular Wireless Networks
The essence of a cellular
network is the use of multiple low-power transmitters. The area to be
covered is divided into cells in a hexagonal tile pattern that provide
full coverage of the area.
(Stallings, Kapitel 14)
-
High-Speed LANs
The IEEE 802.3 standard, known
as Ethernet, now encompasses data rates of 10 Mbps, 100 Mbps, 1 Gbps,
and 10 Gbps. For the lower data rates, the CSMA/CD MAC protocol is
used. For the 1-Gbps and 10-Gbps options, a switched technique is used.
(Stallings, Kapitel 16)
-
Wireless LANs
The principal technologies used
for wireless LANs are infrared, spread spectrum and narrowband
microwave.
(Stallings, Kapitel 17)
-
Network Security
Network security threats fall
into two categories. Passive threats, sometimes referred to as
eavesdropping, involve attempts by an attacker to obtain information
relating to a communication. Active threats involve some modification
of the transmitted data or the creation of false transmissions.
(Stallings, Kapitel 21)
-
Internet Applications -
Multimedia
The Session Initiation Protocol
(SIP) is an application-level control protocol for setting up,
modifying, and terminating real-time sessions between participants over
an IP data network.
(Stallings, Kapitel 24)
-
Address Resolution Protocol
The Address Resolution Protocol
(ARP) is the standard method for finding a host's hardware address when
only its network layer address is known. Due to the overwhelming
prevalence of IPv4 and Ethernet, ARP is primarily used to translate IP
addresses to Ethernet MAC addresses.
(Comer, Kapitel 5)
-
Internet Control Message
Protocol
The Internet Control Message
Protocol (ICMP) is one of the core protocols of the Internet protocol
suite. It is chiefly used by networked computers' operating systems to
send error messages—indicating, for instance, that a requested service
is not available or that a host or router could not be reached.
(Comer, Kapitel 8)
-
Classless Inter-Domain
Routing
Classless Inter-Domain Routing
(CIDR) was introduced in 1993 and is the latest refinement to the way
IP addresses are interpreted. It replaced the previous generation of IP
address syntax, classful networks.
(Comer, Kapitel 9)
-
Border Gateway Protocol
The Border Gateway Protocol
(BGP) is the core routing protocol of the Internet. It works by
maintaining a table of IP networks or 'prefixes' which designate
network reachability among autonomous systems (AS).
(Comer, Kapitel 14)
-
Routing Information
Protocol, Open Shortest Path
First
The Routing Information Protocol
(RIP) is one of the most commonly used interior gateway protocol (IGP)
routing protocols on internal networks. The Open Shortest Path First
(OSPF) protocol is a hierarchical interior gateway protocol (IGP) for
routing in Internet Protocol, using a link-state in the individual
areas that make up the hierarchy.
(Comer, Kapitel 15)
-
IP Multicast
Multicast is the delivery of
information to a group of destinations simultaneously using the most
efficient strategy to deliver the messages over each link of the
network only once, creating copies only when the links to the
destinations split.
(Comer, Kapitel 16)
-
Mobile IP
Mobile IP is an Internet
Engineering Task Force (IETF) standard
communications protocol that is designed to allow mobile device users
to move from one network to another while maintaining a permanent IP
address.
(Comer, Kapitel 18)
-
Network Address Translation, Virtual Private Network
The process of Network Address
Translation (NAT) involves re-writing the source and/or destination
addresses of IP packets as they pass through a Router or firewall. A
virtual private network (VPN) is a communications network tunneled
through another network, and dedicated for a specific network. One
application is secure communications through the public Internet.
(Comer, Kapitel 19)
-
Dynamic Host Configuration
Protocol
The Dynamic Host Configuration
Protocol (DHCP) is a set of rules used by communications devices such
as a computer, router or network adapter to allow the device to request
and obtain an IP address from a server which has a list of addresses
available for assignment.
(Comer, Kapitel 22)
-
Domain Name System
The Domain Name System (DNS)
associates various sorts of information with so-called domain names;
most importantly, it serves as the "phone book" for the Internet: it
translates human-readable computer hostnames into the IP addresses that
networking equipment needs for delivering information.
(Comer, Kapitel 23)
-
E-Mail
Electronic mail (abbreviated
"e-mail" or, often, "email") is a store and forward method of
composing, sending, storing, and receiving messages over electronic
communication systems. Important protocols used are SMTP, POP, IMAP,
and MIME.
(Comer, Kapitel 26)