Packet switching

SOFTWARE DEFINED NETWORKING A Literature Review Presented to Prof. Sharmin Khan Department of Computer Science San Jose State University In Partial Fulfillment Of the Requirements for the class CS200W By Hina Mohare April 2016 ABSTRACT Software Defined Networking (SDN) is a rapidly growing technology which has received lot of attention. It addresses some of the long-standing challenges in the field of computer networks. It simplifies and makes it easier to management network. The core idea

CONTROLLED CONTENT DISTRIBUTION IN PEER-TO-PEER NETWORKS Amna Qureshi Controlled Content Distribution in Peer-to-Peer Networks Research Problem: Centralized fingerprinting mechanism has an encumbrance of computational overheads and high communication bandwidth costs. Central repository of authenticating data has also raised concerns over the loss of privacy and potential misuse of biometric data. For instance, biometric data stored at a central repository can be used to track individuals

IS3220 Final Exam Review 1. What can you detect by analyzing a data packet? Policy violations and possible network vulnerabilities 2. NetWitness Investigator works how? Real Time 3. What is used by TCP to establish a session between two systems? Three way handshake 4. Which of the following protocols is a connection-oriented protocol that operates at the transport layer of the OSI model and supports reliable connections? TCP 5. Promiscuous mode is most commonly associated with_____________?

Hence, they try to get involved in generating revenue by infringing on net neutrality principles. They prioritize data packets from certain sites, which are ready to pay for this service. For an analogy, postal service officials don’t read the letters they are delivering. For a common service, is it possible for them to read the letter and decide if they are going to deliver the packet or not? Is it ethical for a postman to priorities a mail delivery by taking bribe from the sender? For another analogy

route selection for a packet is based on choosing routes based on stronger connectivity’s [12]. SSA is based on the two co-operative protocols; Dynamic Routing Protocol (DRP); Static Routing Protocol (SRP). The DRP had maintains Signal Stability Table (SST) and the routing table (RT). SST records signal strength of all neighboring nodes. The signal strength is recorded as stronger or weaker channel. All transmissions are received and processed in DRP. DRP passes received packet to SRP. It processes

is able to fully utilize the available network resources in a highly dynamic fashion. Under low traffic conditions, however, because many other nodes may also have a small or 0 queue size, there is inefficiency in terms of an increase in delay, as packets may loop or take a long time to make their way to the destination. This is particularly of concern in intermittent encounter-based mobile networks which are already delay-limited due to the sparse and highly dynamic network connectivity. Such networks

have to operate over lossy channels. 6LoWPAN implements header compression to reduce the overhead needed to send an individual data packet. It is able to accomplish this by removing redundant header fields and using a compressed version of the routing address. To accommodate for the limited packet sizes, fragmentation and reassembly is required to transmit large packets. [2]The unique constraints of IoT networks also require a specialized network routing protocol. Currently the leading candidate is

specific status details of a node, the location of nodes, private keys or secret keys, passwords, and so on. The control data are more critical for security than the trac data. Forinstance, the routing directives in packet headers such as the identity or location of thenodes can be more valuable than the application-level messages.Confidential or importantinformation may be leaked to unauthorized nodes present in the network by compromised node. Such information may

imperative for us to optimize our network in such a way that we can make maximum use of the network resources. Network coding allows us to do that. It achieves this by combining different packets that it receives at a node into one single packet for transmission, instead of simply taking and forwarding the packets. However, network coding is vulnerable to pollution attacks where a single malicious node can disrupt the operation of the complete network. Several protocols to detect pollution attacks

protocols for mobile ad hoc networks, such as AODV, DSR. The intruder broadcasts mass Route Request packets to exhaust the communication bandwidth and node resource so that the valid communication cannot be kept. After analyzed Ad Hoc Flooding Attack, we develop Flooding Attack Prevention (FAP), a defense against the Ad Hoc Flooding Attack in mobile ad hoc networks. When the intruder broadcasts exceeding packets of Route Request, the immediate neighbors of the intruder record the behavior of sender and check