week8-1
... During the whole transmission period of any packet (after it is send out) the sender keeps on sensing the bus. If any other m-carrier is sensed, stop transmitting instantly; wait for a random amount of time; then retransmit ...
... During the whole transmission period of any packet (after it is send out) the sender keeps on sensing the bus. If any other m-carrier is sensed, stop transmitting instantly; wait for a random amount of time; then retransmit ...
The ISO/OSI Reference Model
... Each layer means different layer of abstraction Each layer should perform a well defined function The functions of layer should promote standardization The information flow across the interfaces should be minimized – The number of layers should be large enough to separate functionality and small eno ...
... Each layer means different layer of abstraction Each layer should perform a well defined function The functions of layer should promote standardization The information flow across the interfaces should be minimized – The number of layers should be large enough to separate functionality and small eno ...
class14
... Network layer connection and connection-less service Datagram network provides network-layer connectionless service VC network provides network-layer connection service Analogous to the transport-layer services, but: Service: host-to-host Host has no choice: network provides one or the other Implem ...
... Network layer connection and connection-less service Datagram network provides network-layer connectionless service VC network provides network-layer connection service Analogous to the transport-layer services, but: Service: host-to-host Host has no choice: network provides one or the other Implem ...
Chapter 4. Data Link Layer
... into coherent messages for the network layer • Major functions of a data link layer protocol – Media Access Control • Controlling when computers transmit – Error Control • Detecting and correcting transmission errors – Message Delineation • Identifying the beginning and end of a message Copyright 20 ...
... into coherent messages for the network layer • Major functions of a data link layer protocol – Media Access Control • Controlling when computers transmit – Error Control • Detecting and correcting transmission errors – Message Delineation • Identifying the beginning and end of a message Copyright 20 ...
The OSI Reference Model - Department of Computing
... Easier to teach communication process. Speeds development, changes in one layer does not affect how the other levels works. Standardization across manufactures. Allows different hardware and software to work together Reduces complexity ...
... Easier to teach communication process. Speeds development, changes in one layer does not affect how the other levels works. Standardization across manufactures. Allows different hardware and software to work together Reduces complexity ...
Slide 1
... Star Network • Most common network • Star network several computers or devices interconnect to one another over a hub ...
... Star Network • Most common network • Star network several computers or devices interconnect to one another over a hub ...
CG21532537
... Analysis of Catching Strategies & Emergence of Information Density in Mobile Ad hoc Networks Abstract - Caching in wireless networks means where the nodes may be mobile and exchange information in a peer-to-peer method with large and small-sized caches. For large-sized caches, devise a strategy wher ...
... Analysis of Catching Strategies & Emergence of Information Density in Mobile Ad hoc Networks Abstract - Caching in wireless networks means where the nodes may be mobile and exchange information in a peer-to-peer method with large and small-sized caches. For large-sized caches, devise a strategy wher ...
EE 122: Introduction To Communication Networks
... • Information transmitted by any node is received by every other node in the network – Usually only in LANs (Local Area Networks) E.g., WiFi, Ethernet (classical, but not current) E.g., lecture! ...
... • Information transmitted by any node is received by every other node in the network – Usually only in LANs (Local Area Networks) E.g., WiFi, Ethernet (classical, but not current) E.g., lecture! ...
Three-Layer Hierarchical Network Design
... Layer 3 switching Can upgrade without buying new router Activate remotely with a license Upgrade from 200Mbps to 400Mbps for example Usually under 4 ports ...
... Layer 3 switching Can upgrade without buying new router Activate remotely with a license Upgrade from 200Mbps to 400Mbps for example Usually under 4 ports ...
CIS 321 Data Communications & Networking
... Example 2 In Figure 2.11 we want to send data from a node with network address A and physical address 10, located on one LAN, to a node with a network address P and physical address 95, located on another LAN. Because the two devices are located on different networks, we cannot use physical address ...
... Example 2 In Figure 2.11 we want to send data from a node with network address A and physical address 10, located on one LAN, to a node with a network address P and physical address 95, located on another LAN. Because the two devices are located on different networks, we cannot use physical address ...
Operating Systems and Networks - Summaries
... Comparing routing algorithms ..........................................................................................................39 ...
... Comparing routing algorithms ..........................................................................................................39 ...
ch04
... into coherent messages for the network layer • Major functions of a data link layer protocol – Media Access Control • Controlling when computers transmit – Error Control • Detecting and correcting transmission errors – Message Delineation • Identifying the beginning and end of a message Copyright 20 ...
... into coherent messages for the network layer • Major functions of a data link layer protocol – Media Access Control • Controlling when computers transmit – Error Control • Detecting and correcting transmission errors – Message Delineation • Identifying the beginning and end of a message Copyright 20 ...
ELEN E6761 Fall `00
... continue to operate if one of the hubs malfunction Extends maximum distance between node pairs (100m per Hub) can disconnect a “jabbering adapter”; 10base2 would not work if an adapter does not stop transmitting on the cable can gather monitoring information and statistics for display to ...
... continue to operate if one of the hubs malfunction Extends maximum distance between node pairs (100m per Hub) can disconnect a “jabbering adapter”; 10base2 would not work if an adapter does not stop transmitting on the cable can gather monitoring information and statistics for display to ...
Lecture 6
... • Because the TOTAL LENGTH field is 16 bits long, the maximum possible size of an IP datagram is 216 or 65,535 octets. • This may become more important in the future if higher speed networks can carry data packets larger than 65,535 octets. ...
... • Because the TOTAL LENGTH field is 16 bits long, the maximum possible size of an IP datagram is 216 or 65,535 octets. • This may become more important in the future if higher speed networks can carry data packets larger than 65,535 octets. ...
Deployed and Emerging Security Systems for the Internet
... What’s a “different” protocol • Reasonable definition: If has a different Ethertype • New version: share the same Ethertype • If you ever make the format incompatible, change the version number • Which means you can’t just specify what you set the field to, but that you should drop something with a ...
... What’s a “different” protocol • Reasonable definition: If has a different Ethertype • New version: share the same Ethertype • If you ever make the format incompatible, change the version number • Which means you can’t just specify what you set the field to, but that you should drop something with a ...
Introduction - Computer Science
... pulses in the signal. Solved by adaptive equalization that involves mechanisms for gathering the dispersed symbol energy into its original time interval. ...
... pulses in the signal. Solved by adaptive equalization that involves mechanisms for gathering the dispersed symbol energy into its original time interval. ...
Inglés
... without a previous notice, thus varying the network topology. This behaviour allows the creation of a network from scratch and without any intervention of users to configure it. The network size varies when nodes approach or move away from the network coverage area. This panorama is what makes MANET ...
... without a previous notice, thus varying the network topology. This behaviour allows the creation of a network from scratch and without any intervention of users to configure it. The network size varies when nodes approach or move away from the network coverage area. This panorama is what makes MANET ...
Exploring Network Structure, Dynamics, and Function
... the same while modifying the network by moving edges (defined as removing an edge between one pair of nodes and adding an edge between another). What are the network properties that seriously diminish or enhance synchronization and how hard is it to calculate the required rewirings? Our model follow ...
... the same while modifying the network by moving edges (defined as removing an edge between one pair of nodes and adding an edge between another). What are the network properties that seriously diminish or enhance synchronization and how hard is it to calculate the required rewirings? Our model follow ...
DeviceNet trouble
... Multiple power supplies can be installed on a DeviceNet network, but no section of cable should have more current flowing than the appropriate rating. An important note is that when putting multiple power supplies on a network; break the Red V+ wire between the power supplies. This effectively isola ...
... Multiple power supplies can be installed on a DeviceNet network, but no section of cable should have more current flowing than the appropriate rating. An important note is that when putting multiple power supplies on a network; break the Red V+ wire between the power supplies. This effectively isola ...
Ethernet - Personal.kent.edu
... Can be full duplex if only two devices in collision domain and both devices are full duplex cabable • Can mix speeds and media ...
... Can be full duplex if only two devices in collision domain and both devices are full duplex cabable • Can mix speeds and media ...
Lecture 05
... carry network layer data of any network layer protocol (not just IP) at same time ability to demultiplex upwards bit transparency: must carry any bit pattern in the data field error detection (no correction) connection liveness: detect, signal link failure to network layer network layer address ...
... carry network layer data of any network layer protocol (not just IP) at same time ability to demultiplex upwards bit transparency: must carry any bit pattern in the data field error detection (no correction) connection liveness: detect, signal link failure to network layer network layer address ...