2. Poison Message Failure Propagation Problem
... • Combining passive diagnosis and active diagnosis. Centralized network management is used. • Assume a link box can be put at each link of the network that can be configured to block certain message types or all messages belonging to a protocol. The link box can also record the recent communication ...
... • Combining passive diagnosis and active diagnosis. Centralized network management is used. • Assume a link box can be put at each link of the network that can be configured to block certain message types or all messages belonging to a protocol. The link box can also record the recent communication ...
The OSI Networking Model - Oakton Community College
... ensures that the data can hop from link to link on the way to the final destination described in its header. When the data finally arrives, the layer 4 header is used to determine which locally installed software application should receive it. The application uses the guidelines of layer 5 to keep t ...
... ensures that the data can hop from link to link on the way to the final destination described in its header. When the data finally arrives, the layer 4 header is used to determine which locally installed software application should receive it. The application uses the guidelines of layer 5 to keep t ...
Business Data Communications and Networking
... Service Point Address (more often called a port) used to track multiple sessions between the same systems. SPA’s are used to allow a node to offer more than one service (i.e. it could offer both mail and web services) This layer is why you have to specify TCP or UDP when dealing with TCP/IP ...
... Service Point Address (more often called a port) used to track multiple sessions between the same systems. SPA’s are used to allow a node to offer more than one service (i.e. it could offer both mail and web services) This layer is why you have to specify TCP or UDP when dealing with TCP/IP ...
logical topology
... • A ‘driver’ for the NIC, supplied by the manufacturer. This allows the NIC hardware to be controlled by the PC an operates at the data link layer. • A ‘protocol’ such as TCP/IP, NetBeui, Ipx/Spx etc. These are components which amongst other things control how information is ‘routed’ in networks. • ...
... • A ‘driver’ for the NIC, supplied by the manufacturer. This allows the NIC hardware to be controlled by the PC an operates at the data link layer. • A ‘protocol’ such as TCP/IP, NetBeui, Ipx/Spx etc. These are components which amongst other things control how information is ‘routed’ in networks. • ...
Data Link Layer
... second, and each mote can hear on-average 10 motes from the other network. Both networks properly calculate their FCS, and both use a 32-bit MIC, but with different keys. How often will a mote from one network incorrectly accept a packet from the other network (i.e. how often will the MIC be the sam ...
... second, and each mote can hear on-average 10 motes from the other network. Both networks properly calculate their FCS, and both use a 32-bit MIC, but with different keys. How often will a mote from one network incorrectly accept a packet from the other network (i.e. how often will the MIC be the sam ...
Fundamentals of Computer Networks ECE 478/578
... Use smallest number of channel abstractions FTP utilizes request/reply Video-on-demand uses message stream channel Both use a host-to-host communication protocol ...
... Use smallest number of channel abstractions FTP utilizes request/reply Video-on-demand uses message stream channel Both use a host-to-host communication protocol ...
CCNA 1 Module 6 Ethernet Fundamentals
... Nodes monitor the bus (or Ether) to determine if it is busy. A node wishing to send data waits for an idle condition then transmits its message. Collisions can occur when two nodes transmit at the same time, thus nodes must monitor the cable when they transmit. When a collision occurs, both nodes st ...
... Nodes monitor the bus (or Ether) to determine if it is busy. A node wishing to send data waits for an idle condition then transmits its message. Collisions can occur when two nodes transmit at the same time, thus nodes must monitor the cable when they transmit. When a collision occurs, both nodes st ...
INTRODUCTION TO INFORMATION SYSTEMS TECHNOLOGY
... Most simple network topology All devices connected to a common central cable called a “bus” Inexpensive If cable fails, the entire network will shut down ...
... Most simple network topology All devices connected to a common central cable called a “bus” Inexpensive If cable fails, the entire network will shut down ...
Common High Speed Physical Layer Problems
... Although perfect grounds do not exist, near-perfect ones are good enough. Many CAN transceivers will function with ground differences or ground shifts up to a few volts. While somewhat infrequent, ground shift problems occur more often in systems that use large amounts of current to control large lo ...
... Although perfect grounds do not exist, near-perfect ones are good enough. Many CAN transceivers will function with ground differences or ground shifts up to a few volts. While somewhat infrequent, ground shift problems occur more often in systems that use large amounts of current to control large lo ...
ch 10 Network Access and Transmission Methods
... Digital subscriber line (DSL) is a transmission method that uses advanced data modulation techniques to achieve extraordinary throughput over regular phone lines. It comes in several different ...
... Digital subscriber line (DSL) is a transmission method that uses advanced data modulation techniques to achieve extraordinary throughput over regular phone lines. It comes in several different ...
Chord: A Scalable Peer-to-peer Lookup Service for Internet
... System Model - Problems • Load balance: spreading the load over all of the nodes in a dynamic manner • Decentralization: no node is more important than any other • Scalability: cost of look up grows as log n • Availability: tables are automatically updated to show new nodes, node with responsible f ...
... System Model - Problems • Load balance: spreading the load over all of the nodes in a dynamic manner • Decentralization: no node is more important than any other • Scalability: cost of look up grows as log n • Availability: tables are automatically updated to show new nodes, node with responsible f ...
Gnutella Vision - groups.sims.berkeley.edu (ssl)
... layer for Carnivore, a network surveillance tool. Carnivore is an application that listens to all data traffic in a network (email, web surfing, etc.). Data travels on the Internet between two computers in packets. The Synapsis client visualizes the actual packets flowing on the network and partiall ...
... layer for Carnivore, a network surveillance tool. Carnivore is an application that listens to all data traffic in a network (email, web surfing, etc.). Data travels on the Internet between two computers in packets. The Synapsis client visualizes the actual packets flowing on the network and partiall ...
network layer - WordPress.com
... network layer. For a reliable network layer with virtual circuit capability, a minimal transport layer is required. If the network layer is unreliable and/or only supports datagrams, the transport protocol should include extensive error detection and recovery. The transport layer provides: Message ...
... network layer. For a reliable network layer with virtual circuit capability, a minimal transport layer is required. If the network layer is unreliable and/or only supports datagrams, the transport protocol should include extensive error detection and recovery. The transport layer provides: Message ...
Seaweb - WUWNet
... Advantages: Simple, COTS modem firmware, Plug & play, Routing tables not required, Centralized control not required Disadvantages: Redundant communications, Not bandwidth efficient for fixed network, High latency Analogous to terrestrial “Zebranet” Well suited for delay-tolerant AUV mobile networks ...
... Advantages: Simple, COTS modem firmware, Plug & play, Routing tables not required, Centralized control not required Disadvantages: Redundant communications, Not bandwidth efficient for fixed network, High latency Analogous to terrestrial “Zebranet” Well suited for delay-tolerant AUV mobile networks ...
Flow control
... • Transmitter sends Df of its frequency & network frequency • Receiver adjusts network frequency by Df • Packet delay jitter can be removed completely ...
... • Transmitter sends Df of its frequency & network frequency • Receiver adjusts network frequency by Df • Packet delay jitter can be removed completely ...
Computer and multimedia networks (FM)
... - Source and destination ports - Sequence number: reordering, packet loss detection - ACK number - Checksum: error detection - Window field: flow control Although reliable, the overhead of retransmission in TCP may be too high for many real-time multimedia applications such as streaming video - UD ...
... - Source and destination ports - Sequence number: reordering, packet loss detection - ACK number - Checksum: error detection - Window field: flow control Although reliable, the overhead of retransmission in TCP may be too high for many real-time multimedia applications such as streaming video - UD ...
Kuliah Komunikasi Data
... defines the way in which computers, printers, and other devices are connected. A network topology describes the layout of the wire and devices as well as the paths used by data transmissions. ...
... defines the way in which computers, printers, and other devices are connected. A network topology describes the layout of the wire and devices as well as the paths used by data transmissions. ...
Broadcast Routing - UCLA Computer Science
... Link Layer Services sending data over a physical link 1. bit encoding: transmitting sequence of 1’s and 0’s by signals 2. Framing: defining the beginning & end of a data chunk 3. bit error detection 4. reliable transmission MAC (Medium Access Control) addresses to identify source, ...
... Link Layer Services sending data over a physical link 1. bit encoding: transmitting sequence of 1’s and 0’s by signals 2. Framing: defining the beginning & end of a data chunk 3. bit error detection 4. reliable transmission MAC (Medium Access Control) addresses to identify source, ...
Suman Bannerjee, U Wisconsin, “Wireless Virtualization of
... • More careful tuning needed for smaller time slices – Need chipset vendor support for very small times ...
... • More careful tuning needed for smaller time slices – Need chipset vendor support for very small times ...
WB_intro
... served traditional voice networks well, but gradually becoming outdated by new technology ...
... served traditional voice networks well, but gradually becoming outdated by new technology ...