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389 Uppsatser om Border Gateway Protocol - Sida 1 av 26

Border Gateway Protocol : Implementationer på stubnätverk

Arbetet tar upp BGP-multihoming för mindre organisationer. Den jämför ett kommersiell alternativ mot open source-alternativ. Detta är för att se vad som krävs en av open source-lösning för ge konkurrens på routermarknaden, samt besparingar för organisationer som ska använda denna lösning.Praktiska och teoretiska jämförelser görs där Cisco-lösningar jämförs med OpenBGPD. Datan utifrån dessa tester används för att svara på problemfrågan. Sammanfattningsvis har open source produkter en fördel hårdvarumässigt på grund av lägre kostnader medan kommersiella har stora fördelar då de förlitar sig på nyare standarder..

Mail Exchange Protocol (MEP): Ett utkast till nytt protokoll för elektronisk post

SMTP, the current protocol for sending electronic mail (e-mail) over the Internet, has for many years suffered from several problems and limitations. When it was designed, well over twenty years ago, the requirements for e-mail were very different from those of today. A message was a text message in English, and both user and machine were explicitly named in the address. The protocol was not designed to transfer other types of messages, and no mechanism was included to verify the identity of the sender.In order to solve these shortcomings, a new e-mail protocol needs to be defined. This report specifies a basis for what such a protocol may look like.

En jämförande studie av IPv4 och IPv6

The Internet protocol of today has been used for over 20 years. A new version of the protocol has been developed to replace the old one. This is a direct result due to the explosive growth of the usage of the Internet. This follows by new demands which needs new solutions. This report brings up the old protocol IPv4, the new protocol IPv6 and shows what kind of changes that has been developed to meet the users demand.The report brings up two important aspects; internet security and mobility.

FPGA-design av en STDM-baserad multiplexer för seriell multiprotokollskommunikation

The remotely operated underwater vehicles that the client develops have needs of different kinds of data channels. In order to minimize the need of physical cable between the control unit and a ROV, a multiplex protocol has been developed. The protocol has been designed with the aim of using the bandwidth of the transferring link as efficient as possible.The different kinds of data channels used during this thesis project is; RS232, RS485 and CAN. ROM and FIFO-memories have been used to be able to effectively manage the different data channels. All the reading and sending of these channels have been implemented in FPGA-technology, the coding is made generic so that it will be easier to add more channels to the system in the future.The multiplex protocol is a modified version of the method STDM and it is a proprietary protocol.

Portal till det förflutna : en arkeologisk kvalitetskontrollerad ämnesportal som resurs för universitetsutbildning i Lund.

The purpose of this essay ("Gateway to the Past. An archaeological quality controlled subject gateway as a resource for higher education in Lund") is to examine how a quality controlled subject gateway could increase the quality of the information supply for the Department of Archaeology and Ancient History at Lund University. The essay gives a brief background to subject gateways and also describes the Department and its subjects (prehistoric archaeology, medieval archaeology, osteology and classical studies) . The essay consists of a questionnaire distributed to parts of the target group as well as an investigation of three particular subject gateways: NordArk, ARGE and The Labyrinth. The essay also contains an exposition of how archaeologists seek information, of the structure of the archaeological subjects and of classification systems for quality controlled subject gateways.

"Halfpipe Active Channel"- developing a secure communications protocol

With the advent of powerful multimedia capable mobile phones, the market for mobile services is flourishing. Zenterio AB's Halfpipe Active Desktop is a complete distributed mobile service platform a with a powerful server and platform-independent client. The communication between the client and server takes place over a GPRS-capable mobile network. The purpose of this thesis is to develop a secure communications protocol for use between the Halfpipe Active Desktop client and server. This is done by determining requirements, analyzing candidate protocols and then by designing the final protocol.

Resurseffektivt bussprotokoll o?ver RS-485

This report describes the design and implementation of a multi-master, packet based protocol for small and tiny microcontrollers where resources are limited. The protocol was named "Tiny Controller Network" or TCN for short. The protocol is meant mainly as a control bus for automation and sensor acquisition applications but due to its flexibility can also be used for other purposes as well. It borrows some of its functionality and design ideas from the well known CAN bus and Modbus but also has a number of major differences like the use of standard hardware and time synchronisation. One of the key aspects during the design was the use of very little system resources and common on-chip hardware peripherals like a UART.

Översvämningsrisker i kustnära städer : Sölvesborg, Karlshamn, Ronneby, Karlskrona

This report describes the design and implementation of a multi-master, packet based protocol for small and tiny microcontrollers where resources are limited. The protocol was named "Tiny Controller Network" or TCN for short. The protocol is meant mainly as a control bus for automation and sensor acquisition applications but due to its flexibility can also be used for other purposes as well. It borrows some of its functionality and design ideas from the well known CAN bus and Modbus but also has a number of major differences like the use of standard hardware and time synchronisation. One of the key aspects during the design was the use of very little system resources and common on-chip hardware peripherals like a UART.

På EU:s gränser Den nya nordliga dimensionen

In this paper I attempt to analyze the ways the European Union defines its external borders in cross-border co-operation with its neighbours. The analysis is based on case study examining the founding components of a updated version of the Northern Dimension policy of the European Union.The analytical framework of the study is composed of three different perceptions on the cross-border co-operation; regionalisation, integration and flexible integration. I conclude that the model of cross-border co-operation laid by the Northern Dimension policy would have an impact on the EU's external border with Russia, making it more flexible and vague.As far as the geographical terms of the co-operation are concerned, they seem to shift from regional co-operation to greater emphasis the role of networks as basis for co-operation instead of traditional regions..

Prototyp av en VoIP/PSTN-gateway

Under de senaste åren har Internettelefonin varit på frammarsch, och i takt med att tekniken mognat har fler och fler börjat se den som ett alternativ till att ringa via telefonnätet. Förutom att det är billigare att ringa över det förstnämnda, så erbjuder Internettelefonin också en rad revolutionerande tjänster. Det är dock troligt att telefonnätet kommer att få tjänstgöra i många år till, och det erbjuder fortfarande överlägset bäst stabilitet och har stor acceptans. Om de två telefoninätverken ska existera sida vid sida, med varsina användarbaser är det lämpligt om de kan fås att samverka, så att användare av det ena kan ringa användare av det andra, och vice versa. Detta kan göras med en VoIP/PSTN-gateway, som översätter kontrollinformation och rösttrafik mellan de två nätverken.Uppsatsen handlar om det arbete vi har utfört år TietoEnator i Karlstad.

Realtidsstyrning av IP-kamera

The final thesis named Tracking in Sensor Networks was created by the company Instrument control Sweden. The thesis work is to create a plug-in to an already developed software pro- gram, SkyView. Via the software program one should be able to control an IP-camera from AXIS, model 215 PTZ, with the appropriate protocol over a network.  An Application Programming Interface, API, was used to easily control the camera through SkyView. The interface is called VAPIX and is used to all cameras from AXIS.

Transdiagnostisk gruppbehandling - effekten av Unified Protocol vid en psykiatrisk öppenvårdsmottagning

Transdiagnostisk KBT-behandling har under senare år blivit ett allt vanligare forskningsområde. Företrädare för transdiagnostiska behandlingar har argumenterat för att gemensam psykopatologisk grund och gemensamma verksamma behandlingsmekanismer vid emotionella tillstånd gör att patienter med olika diagnoser och med komorbida tillstånd kan ha hjälp av samma behandling och att transdiagnostiska behandlingar kan öka tillgången till evidensbaserad behandling. Unified Protocol är en transdiagnostisk behandling vid emotionella tillstånd. Syftet med denna studie var undersöka effekten av Unified Protocol som gruppbehandling i reguljär psykiatrisk vård. Behandling genomfördes med sammanlagt 23 deltagare.

En studie av zero knowledge-identifikationsprotokoll för smarta kort

Zero knowledge protocols is a lesser known type of protocol that can be used for identification. These protocols are especially designed not to reveal any information during an identification process that can be misused later on, neither by the one who should be convinced of the identity of the user, nor by anyone else that is eavesdropping. Many of these protocols are also especially designed for implementation in smart cards. The more common type of card with a magnetic stripe has during the last few years become more susceptible to attacks since they are easily copied. Smart cards combined with a secure identification protocol has been predicted to be the solution to this problem.

Barriers to Provide Cross Border Services/Case Study Nordea

There is an increase of financial integration, which can be seen in recent mergers of banks, financial institutions etc. in the European Union especially in the Nordic countries. However there are some weaknesses in providing consumers cross border services in the sector of banking, such as cross border bank account transfer of payments. The existing transaction costs do not encourage cross border services. Nevertheless a customer of a global or European bank can anticipate to be treated the same way in all of its branch offices inside the EU countries.

Ökad flexibilitet i Anybus X-gateway med hjälp av Lua

HMS Networks AB develops, produces and sells communication technology for industrial automation. The product handles communication between a variety of protocols. The product treated in this project is an Anybus X-gateway Modbus-TCP Master/Client and this module is currently configured from a web-based interface. In doing so, the flexibility for handling protocols is limited to what the company chooses to add to the interface. Therefore the company had a request that the flexibility should be extended using a script language.

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