P2P - School of ICT, SIIT, Thammasat University
... – Clients request data or functionality from a server – To cope with large number of potential clients, server may be replicated (e.g. many physical servers, although conceptually only one server) – Disadvantages: • Single point of failure – if server fails, the entire service is unusable • Bandwidt ...
... – Clients request data or functionality from a server – To cope with large number of potential clients, server may be replicated (e.g. many physical servers, although conceptually only one server) – Disadvantages: • Single point of failure – if server fails, the entire service is unusable • Bandwidt ...
Chapter 5
... we learned how to do this already (chapter 3)! seldom used on low bit error link (fiber, some twisted pair) wireless links: high error rates • Q: why both link-level and end-end reliability? 5: DataLink Layer ...
... we learned how to do this already (chapter 3)! seldom used on low bit error link (fiber, some twisted pair) wireless links: high error rates • Q: why both link-level and end-end reliability? 5: DataLink Layer ...
Part I: Introduction - Northwestern University
... … physical-layer (“dumb”) repeaters: bits coming in one link go out all other links at same rate all nodes connected to hub can collide with one another no frame buffering no CSMA/CD at hub: host NICs detect collisions ...
... … physical-layer (“dumb”) repeaters: bits coming in one link go out all other links at same rate all nodes connected to hub can collide with one another no frame buffering no CSMA/CD at hub: host NICs detect collisions ...
Changes in Power System Communications
... layers each performing part of the communications. 1) The physical level controls the physical connections between devices, network topology, voltage levels to define 0’s and 1’s.RS232, RS485, and USB are 3 examples 2) Data link level provides framing 3) Network determines optima routing – IP of TCP ...
... layers each performing part of the communications. 1) The physical level controls the physical connections between devices, network topology, voltage levels to define 0’s and 1’s.RS232, RS485, and USB are 3 examples 2) Data link level provides framing 3) Network determines optima routing – IP of TCP ...
Liverpool HEP - Site Report June 2010 John Bland, Robert Fay
... Liverpool HEP attained NGS Associate status ...
... Liverpool HEP attained NGS Associate status ...
Networking Security - Northwestern Networks Group
... … physical-layer (“dumb”) repeaters: bits coming in one link go out all other links at same rate all nodes connected to hub can collide with one another no frame buffering no CSMA/CD at hub: host NICs detect collisions ...
... … physical-layer (“dumb”) repeaters: bits coming in one link go out all other links at same rate all nodes connected to hub can collide with one another no frame buffering no CSMA/CD at hub: host NICs detect collisions ...
With the help of this diagram, try to describe the function of these
... iv Transmission mode in which both computers send and receive at the same time 2 Mark the following statements as True or False: a Most of the work that an application does to prepare a message for sending over a network is not seen by the user. b ASCII is always used to transmit data. c The encrypt ...
... iv Transmission mode in which both computers send and receive at the same time 2 Mark the following statements as True or False: a Most of the work that an application does to prepare a message for sending over a network is not seen by the user. b ASCII is always used to transmit data. c The encrypt ...
Document
... Consistent hashing (cont.) Properties of consistent hashing: Load balancing – given N nodes, with high probability O(1/N) of the keys are stored in each node. When the N-th node joins, with high probability O(1/N) of the keys are moved. ...
... Consistent hashing (cont.) Properties of consistent hashing: Load balancing – given N nodes, with high probability O(1/N) of the keys are stored in each node. When the N-th node joins, with high probability O(1/N) of the keys are moved. ...
CHAPTER 3 Architectures for Distributed Systems
... – Vertical (or hierarchichal) organization of communication and control paths (as in layered software architectures) – Logical separation of functions into client (requesting process) and ...
... – Vertical (or hierarchichal) organization of communication and control paths (as in layered software architectures) – Logical separation of functions into client (requesting process) and ...
6 marks
... adjacent layers. Example is TCP/IP. TCP is connection-oriented protocol that lies in transport layer (layer 4), IP is connectionless that lies in network layer (layer-3). c) What is the main difference between TCP and UDP protocols? Give an example of a service these protocols can support? (6 marks) ...
... adjacent layers. Example is TCP/IP. TCP is connection-oriented protocol that lies in transport layer (layer 4), IP is connectionless that lies in network layer (layer-3). c) What is the main difference between TCP and UDP protocols? Give an example of a service these protocols can support? (6 marks) ...
3rd Edition, Chapter 5
... 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 ...
Topology generators
... Representativeness: The generated topologies must be accurate, based on the input arguments such as hierarchical structure and degree distribution characteristics. Flexibility: In the absence of a universally accepted model, the generator should include different methods and models. Extensibility: T ...
... Representativeness: The generated topologies must be accurate, based on the input arguments such as hierarchical structure and degree distribution characteristics. Flexibility: In the absence of a universally accepted model, the generator should include different methods and models. Extensibility: T ...
Slides for Week 5
... Has a link establishment & termination procedure • Detects errors but the protocol does not require it to fix them ...
... Has a link establishment & termination procedure • Detects errors but the protocol does not require it to fix them ...
Monitoring, Alerting, DevOps, SLAs, and all that
... Raw packet counts are stored; rates (packets or bytes per sec) are computed at plot time Different questions need different windows Rates are on a log scale – average rates are misleading ...
... Raw packet counts are stored; rates (packets or bytes per sec) are computed at plot time Different questions need different windows Rates are on a log scale – average rates are misleading ...
Local Area Network - School of Library and Information Science
... Today’s LANs and LAN internetworks are powerful, flexible and easy to use. A LAN to really benefit an organization it must be designed to meet the organizations changing communication requirements. ...
... Today’s LANs and LAN internetworks are powerful, flexible and easy to use. A LAN to really benefit an organization it must be designed to meet the organizations changing communication requirements. ...
B43011014
... results of dynamic topology where nodes tend to move from one place to another place at different time frame. So links may break and re-route discovery required. It is required to establish lots of connection because of this movement. Line Graph clearly suggests that as mobility increasing in networ ...
... results of dynamic topology where nodes tend to move from one place to another place at different time frame. So links may break and re-route discovery required. It is required to establish lots of connection because of this movement. Line Graph clearly suggests that as mobility increasing in networ ...
Local Area Network - School of Library and Information Science
... Today’s LANs and LAN internetworks are powerful, flexible and easy to use. A LAN to really benefit an organization it must be designed to meet the organizations changing communication requirements. ...
... Today’s LANs and LAN internetworks are powerful, flexible and easy to use. A LAN to really benefit an organization it must be designed to meet the organizations changing communication requirements. ...
document
... Compatible with star-bus topology popular with LANs Network upgrades easily to higher bandwidths Standards exist for cable and wireless versions Ethernet network scales well, adapts well to WANs Network devices on old campus may be used Many options for Internet connections ...
... Compatible with star-bus topology popular with LANs Network upgrades easily to higher bandwidths Standards exist for cable and wireless versions Ethernet network scales well, adapts well to WANs Network devices on old campus may be used Many options for Internet connections ...
DATA ALCOTT SYSTEM, www.finalsemprojects.com 09600095046
... forwarding rule out using existing countermeasures in traditional networks. In network coding systems like MORE, the connectivity in the network is described using the link loss probability value between each pair of nodes, while traditional networks use connectivity graphs with a binary relation (i ...
... forwarding rule out using existing countermeasures in traditional networks. In network coding systems like MORE, the connectivity in the network is described using the link loss probability value between each pair of nodes, while traditional networks use connectivity graphs with a binary relation (i ...
Data Frame Control (2) - Community College of Rhode Island
... IEEE 802.11 Physical Layer Standards • IEEE wireless standards follow OSI model, with some modifications • Data Link layer divided into two sublayers: – Logical Link Control (LLC) sublayer: Provides common interface, reliability, and flow control – Media Access Control (MAC) sublayer: Appends physi ...
... IEEE 802.11 Physical Layer Standards • IEEE wireless standards follow OSI model, with some modifications • Data Link layer divided into two sublayers: – Logical Link Control (LLC) sublayer: Provides common interface, reliability, and flow control – Media Access Control (MAC) sublayer: Appends physi ...
