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The network convergence time may take hundreds of milliseconds or more. Since this repair performance may be unsatisfactory, IP fast reroute (IPFRR) approaches have been developed to decrease the network convergence time and minimize traffic loss. These IPFRR mechanisms are usually based on the proactive precomputation of a backup path before a failure occurs. Once a failure is detected, the router...
At the beginning, there is overview of three basic Cloud Computing services — SaaS, PaaS and laaS. There is a definition of these services review, advantages and their security problems and effects. Next part tells about portability problems of each service, mainly the IaaS service, which has the most interoperability and portability problems.
To identify all the hidden details that are left after or during a network incident, the computer forensics is used. The purpose of computer forensic techniques is to search, preserve and analyze information on computer systems to find potential evidence for a trial. Computers are getting more powerful day by day, so the field of computer forensics must rapidly evolve. There exist many computer forensic...
At the beginning, this paper describes basic overview of Cloud Computing (CC) and its usage among companies. Second part describes how is Cloud Computing being taught on another schools and companies around the world. Next, there is description of our physical and logical topology, used during experiments. In the next part, there are descriptions of experiments we made during semester while teaching...
The slow convergence of existing routing protocols after link or node failure became a problem. As a solution IP fast Reroute mechanisms have been developed. IP Fast Reroute mechanisms offer rapid network recovery after link or node failure. The basic idea of the IP Fast Reroute is to pre-calculate alternative backup path in advance. In the case of failure IP Fast Reroute Mechanism will use pre-calculated...
In the beginning, this paper describes basic overview of attacks on TCP/IP stack in general. In the next section, there is overview of security of signalization and description of techniques used to secure signalization in multimedia communication. Then, there are described techniques of multimedia security. The last part of the paper deals with a Public key infrastructure (PKI) and aspects of its...
When a link or router failure occurs in a routed network, there is unpredictable period of network traffic interruption. This problem persists until network reconverges on the new topology. New technology which solves these problems after link or router failure has been developed - IP Fast Reroute (IPFRR).
In the beginning, this paper describes basic overview of cloud. What is a cloud, what types of a cloud do we know, types of network mechanisms used in clouds nowadays. Next, there is description of OpenStack, one of most widely deployed cloud infrastructure. This is followed by description of Cloud implemented on Department of InfoCom networks on University of Žilina. In the last part, there is vision...
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