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Presented
Presented

... What’s wrong with existing technology? Proliferation of trust • Switches and routers must correctly export link state, calculate routes and perform filtering • Overtime these functions have become more complex leading to more vulnerabilities. • SANE proposed to replace this with simple, minimally t ...
a destination IP address
a destination IP address

... Layer 3 Networks In a simple office type LAN introduced in Chapter 1 and the building LAN just discussed, the hosts are interconnected with a hub or switch. This allows data to be exchanged within the LAN however data cannot be routed to other networks. Also, the broadcast domain of one LAN is not ...
Network Operator Presentation
Network Operator Presentation

... Superior Traffic Management allows an operator to use the bandwidth in an optimal manner while guaranteeing application performance CIRs, Minimum and Maximum Rates per Remote Dynamic CIR assures Rapid Allocation of Bandwidth * Application-QoS provides Better Performance * End-to-End VLANs Segregates ...
class2
class2

... How long does it take to send a file of 640,000 bits from host A to host B over a circuit-switched network? All links are 1.536 Mbps (in the whole freq. range) Each link uses FDM with 24 channels/frequency band 500 msec to establish end-to-end circuit ...
3.1 Active network
3.1 Active network

... services in embedded systems. I will focus on developing and analyzing how methods to support heterogeneous real-time traffic can be implemented in switches and network interface to get as much functionality and performance as possible. ...
xilinx vertical market backgrounder
xilinx vertical market backgrounder

... business services traffic is causing a spike in bandwidth throughout the global telecommunications network, starting at the access edge of the network and driving up through the Metro network to the core. In response, operators are pushing to higher port rates, which have included 40Gbps SONET (OC-7 ...
network
network

...  in the figure, we see Ethernets, an FDDI ring, and a point-to-point link  each of these is a single-technology network  the nodes that interconnect the networks are called ...
Standardization areas for securing Ad hoc networks
Standardization areas for securing Ad hoc networks

... of multiple paths between nodes in an Ad hoc network to increase the confidentiality. Since the initial message is divided into multiple parts, an attacker if succeeds to have one or lots of transmitted parts, the probability of original message reconstruction will be low. i. Assumption: The followi ...
CCNA 2 v5.0 Routing Protocols Final Exam Answers
CCNA 2 v5.0 Routing Protocols Final Exam Answers

... Refer to the exhibit. The R1 router is participating in a multiarea OSPF network. What can the network administrator determine from the output? The router does not have a default gateway. The routing protocol configuration mode network commands have been entered on this router and adjacent routers.* ...
midterm-review
midterm-review

... • Contents of the ARP Cache: (128.143.71.37) at 00:10:4B:C5:D1:15 [ether] on eth0 (128.143.71.36) at 00:B0:D0:E1:17:D5 [ether] on eth0 (128.143.71.35) at 00:B0:D0:DE:70:E6 [ether] on eth0 (128.143.136.90) at 00:05:3C:06:27:35 [ether] on eth1 (128.143.71.34) at 00:B0:D0:E1:17:DB [ether] on eth0 (128. ...
Interconnection networks 1
Interconnection networks 1

... • What if more than 2 computers want to communicate? – Need computer address field (destination) in packet • What if packet is garbled in transit? – Add error detection field in packet (e.g., CRC) • What if packet is lost? – More elaborate protocols to detect loss (e.g., NAK, ARQ, time ...
Games and the Impossibility of Realizable Ideal Functionality
Games and the Impossibility of Realizable Ideal Functionality

... Detected and automatically generated signatures for every known worm outbreak over eight months Can produce a precise signature for a new worm in a fraction of a second Software implementation keeps up with 200Mbps ...
Designing a Secure Local Area Network
Designing a Secure Local Area Network

... enhances security by making sniffing and arp based attacks difficult. A hub is a less expensive alternative to a switch for layer 2 connectivity, though it is less desirable both from a performance and a security standpoint. ...
Problem Statement and Assumption
Problem Statement and Assumption

... Before modeling authors' problem, authors make the following assumptions: ...
14Wilkins
14Wilkins

... Network Performance Miles Wilkins (BT) P807 (JUPITER2) ...
ZIGZAG: An Efficient Peer-to-Peer Scheme for Media Streaming
ZIGZAG: An Efficient Peer-to-Peer Scheme for Media Streaming

... ustermates, its children and parent on the multicast tree For peers within a cluster, the exchanged information is the peer degree If the recipient is the cluster head, X also sends a list L = {[X1,d1],[X2,d 2],..}, where [Xi,di] represents that X is currently forwarding the content to di peers in t ...
Value Innovation - Prysmian Group UK
Value Innovation - Prysmian Group UK

... Value Innovation is a way of looking at the world. What we can do to help our customers do more, make more, save more and achieve more? Draka is a global leader in delivering advanced cable and network solutions. Focusing on the passive elements of the network, our goal is to deliver superior networ ...
COMP211_Topic5_Network
COMP211_Topic5_Network

... routers: no state about end-to-end connections  no network-level concept of “connection” ...
Why Big Data Needs Big Buffer Switches
Why Big Data Needs Big Buffer Switches

... The TCP/IP Bandwidth Capture Effect Why would small buffer switches create such a wide range of bandwidth for different flows? The answer to this is inherent in the way TCP/IP works and TCP/IP flows interact when packets are dropped. The TCP/IP protocol relies on ACK packets from the receiver to pac ...
Why IPv6 is necessary for new communication scenarios
Why IPv6 is necessary for new communication scenarios

... enables name resolution to find current address – Still use rendezvous point for remote peer address discovery w/o Mobile IPv6 Home Agent ...
IOSR Journal of Computer Engineering (IOSR-JCE)
IOSR Journal of Computer Engineering (IOSR-JCE)

... MAMANETs do not have any entry points such as routers, gateways, etc. These are typically present in wired networks and can be used to monitor all network traffic that passes through them. A node of a mobile ad hoc network can see only a portion of a network: the packets it sends or receives togethe ...
The General Multimodal Network Equilibrium Problem with Elastic
The General Multimodal Network Equilibrium Problem with Elastic

... The traffic pattern is forecasted at the fourth step. The basic assumption concerning the way the network users choose their routes is usually formulated as socalled Wardrop’s first behavioral principle: drivers use only routes with minimal travel costs [5]. This principle is also called user equili ...
protect a system from cyber attacks?
protect a system from cyber attacks?

... Microsoft Windows operating system and Ethernet TCP/IP to reduce costs and improve performance. Additionally, direct communications between control and business systems has been employed to improve operational efficiency and manage production assets more cost-effectively. ...
Routing
Routing

... • routing: determine route taken by packets from source to dest. – routing algorithms ...
Guide to Network Defense and Countermeasures
Guide to Network Defense and Countermeasures

... • WEP provides adequate protection against casual users, but not against attackers determined to gain access – Dynamic WEP, a newer version, offers slightly better protections (rotates keys frequently) – WEP2 was developed to address WEP vulnerabilities • Uses a 120-bit key and Kerberos authenticati ...
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Network tap

A network tap is a hardware device which provides a way to access the data flowing across a computer network. In many cases, it is desirable for a third party to monitor the traffic between two points in the network. If the network between points A and B consists of a physical cable, a ""network tap"" may be the best way to accomplish this monitoring. The network tap has (at least) three ports: an A port, a B port, and a monitor port. A tap inserted between A and B passes all traffic through unimpeded, but also copies that same data to its monitor port, enabling a third party to listen.Network taps are commonly used for network intrusion detection systems, VoIP recording, network probes, RMON probes, packet sniffers, and other monitoring and collection devices and software that require access to a network segment. Taps are used in security applications because they are non-obtrusive, are not detectable on the network (having no physical or logical address), can deal with full-duplex and non-shared networks, and will usually pass through traffic even if the tap stops working or loses power.
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