7,502 research outputs found
Design Considerations for Low Power Internet Protocols
Over the past 10 years, low-power wireless networks have transitioned to
supporting IPv6 connectivity through 6LoWPAN, a set of standards which specify
how to aggressively compress IPv6 packets over low-power wireless links such as
802.15.4.
We find that different low-power IPv6 stacks are unable to communicate using
6LoWPAN, and therefore IP, due to design tradeoffs between code size and energy
efficiency. We argue that applying traditional protocol design principles to
low-power networks is responsible for these failures, in part because receivers
must accommodate a wide range of senders.
Based on these findings, we propose three design principles for Internet
protocols on low-power networks. These principles are based around the
importance of providing flexible tradeoffs between code size and energy
efficiency. We apply these principles to 6LoWPAN and show that the resulting
design of the protocol provides developers a wide range of tradeoff points
while allowing implementations with different choices to seamlessly
communicate
Why internet protocols need incentives
Internet routers are a commons. While modest regulatory measures have generally been successful for Information Communication Technologies (ICT), this paper argues that the lack of regulation has hindered the technological evolution of the Internet in some areas. This issue is examined through five Internet problems, and the technological solutions adopted. The key contribution of this paper is the explanation of these issues and the identification of areas where misaligned incentives promote inadequate solutions or inaction. The paper reviews the available measures to encourage the adoption of globally beneficial Internet technologies
RFCs, MOOs, LMSs: Assorted Educational Devices\ud
This paper discusses implicit social consequences of four basic internet protocols. The results are then related to the field of computer-assisted teaching. An educational on-line community is described and compared to the emerging standard of web-based learning management.\u
Performance and Buffering Requirements of Internet Protocols over ATM ABR and UBR Services
The Asynchronous Transfer Mode (ATM) networks are quickly being adopted as
backbones over various parts of the Internet. This paper analyzes the
performance of TCP/IP protocols over ATM network's Available Bit Rate (ABR) and
Unspecified Bit Rate (UBR) services. It is shown that ABR pushes congestion to
the edges of the ATM network while UBR leaves it inside the ATM portion.Comment: IEEE Communications Magazine, Vol 36, no 6, pp152-15
Internet protocols
Tema „Internet protokoli“ je veoma obuhvatna i široka te će kroz ovaj rad biti objašnjeni pojmovi računalne mreže, arhitektura računalnih mreža, Internet protokola te sve sastavnice i cjeline koje on obuhvaća, a koje se nadovezuju na ovu temu te samu
svrhu Internet protokola i njihovo značenje u korištenju interneta. Računala koja su priključena u mrežu nazivamo čvorovima
mreže. Najjednostavna računalna mreža nastaje međusobnim spajanjem odnosno povezivanjem dva ili više računala.
Računala su povezana ako mogu komunicirati međusobno dok u samoj komunikaciji koriste raznovrsne komunikacijske
protokole. Računalne mreže dijelimo prema tehnologiji prijenosa (difuzne i mreža od točke do točke) , prema geografskoj udaljenosti (LAN – Local Area Network , MAN - Metropolitan Area Network, WAN –Wide Area Network) te prema topologiji na: sabirnička, zvjezdasta, prstenasta, isprepletena, sablasta. Protokol nam daje precizan strukturalni opis nekog entiteta slično kao tlocrt, omogućuje nam njegovu obradu te razmjenu poruka. IP (Internet Protokoli) su najpoznatija i najrasprostanjenija vrsta mrežnog protokola koje nam služe za komunikaciju izvornih i odredišnih računala koristeći računalnu mrežu. Jednako dobro su prilagođeni za lokalnu i širokopojasnu komunikaciju. Dva najraširenija protokola računalne mreže internet nazivaju se Internet protokol (IP) i Transmission Control Protocol(TCP)
Internet protocols
Tema „Internet protokoli“ je veoma obuhvatna i široka te će kroz ovaj rad biti objašnjeni pojmovi računalne mreže, arhitektura računalnih mreža, Internet protokola te sve sastavnice i cjeline koje on obuhvaća, a koje se nadovezuju na ovu temu te samu
svrhu Internet protokola i njihovo značenje u korištenju interneta. Računala koja su priključena u mrežu nazivamo čvorovima
mreže. Najjednostavna računalna mreža nastaje međusobnim spajanjem odnosno povezivanjem dva ili više računala.
Računala su povezana ako mogu komunicirati međusobno dok u samoj komunikaciji koriste raznovrsne komunikacijske
protokole. Računalne mreže dijelimo prema tehnologiji prijenosa (difuzne i mreža od točke do točke) , prema geografskoj udaljenosti (LAN – Local Area Network , MAN - Metropolitan Area Network, WAN –Wide Area Network) te prema topologiji na: sabirnička, zvjezdasta, prstenasta, isprepletena, sablasta. Protokol nam daje precizan strukturalni opis nekog entiteta slično kao tlocrt, omogućuje nam njegovu obradu te razmjenu poruka. IP (Internet Protokoli) su najpoznatija i najrasprostanjenija vrsta mrežnog protokola koje nam služe za komunikaciju izvornih i odredišnih računala koristeći računalnu mrežu. Jednako dobro su prilagođeni za lokalnu i širokopojasnu komunikaciju. Dva najraširenija protokola računalne mreže internet nazivaju se Internet protokol (IP) i Transmission Control Protocol(TCP)
Supporting internet protocols in master-slave fieldbus networks
In this paper we describe how to integrate Internet Protocols (IP) into a typical hierarchical master-slave fieldbus network, supporting a logical ring token passing mechanism between master stations. The integration of the TCP/IP protocols in the fieldbus protocol rises a number of issues that must be addressed properly. In this paper we particularly address the issues related to the conveyance of IP fragments in fieldbus frames (fragmentation/de-fragmentation) and on how to support the symmetry inherent to the TCP/IP protocols in fieldbus slaves, which lack communication initiative
Session Initiation Protocol Attacks and Challenges
In recent years, Session Initiation Protocol (SIP) has become widely used in
current internet protocols. It is a text-based protocol much like Hyper Text
Transport Protocol (HTTP) and Simple Mail Transport Protocol (SMTP). SIP is a
strong enough signaling protocol on the internet for establishing, maintaining,
and terminating session. In this paper the areas of security and attacks in SIP
are discussed. We consider attacks from diverse related perspectives. The
authentication schemes are compared, the representative existing solutions are
highlighted, and several remaining research challenges are identified. Finally,
the taxonomy of SIP threat will be presented
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Efficient, DoS-Resistant, Secure Key Exchange for Internet Protocols
We describe JFK, a new key exchange protocol, primarily designed for use in the IP Security Architecture. It is simple, efficient, and secure; we sketch a proof of the latter property. JFK also has a number of novel engineering parameters that permit a variety of trade-offs, most notably the ability to balance the need for perfect forward secrecy against susceptibility to denial-of-service attacks
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