Media Oriented Systems Transport
... + The optical fiber used has a pretty large diameter (1 mm fiber), this makes it cheap and easy to contact and splice - The radius when bent must not be tighter than 2.5 cm - The working temperature is limited (below 85 °C) so it can not be used in the engine room ...
... + The optical fiber used has a pretty large diameter (1 mm fiber), this makes it cheap and easy to contact and splice - The radius when bent must not be tighter than 2.5 cm - The working temperature is limited (below 85 °C) so it can not be used in the engine room ...
William Stallings Data and Computer Communications
... detection and control Activates, maintains and deactivates link Higher layers may assume error free transmission Communication through a number of data links require higher layers to perform some error control Examples: High-level Data link control (HDLC) ...
... detection and control Activates, maintains and deactivates link Higher layers may assume error free transmission Communication through a number of data links require higher layers to perform some error control Examples: High-level Data link control (HDLC) ...
test 1 - answer
... probes, and displays the round-trip time for each. After every third probe, the TTL increases by one. Each outgoing packet can result in one of two error messages. A "time exceeded" error message indicates that an intermediate switch router has seen and discarded the probe. A "port unreachable" erro ...
... probes, and displays the round-trip time for each. After every third probe, the TTL increases by one. Each outgoing packet can result in one of two error messages. A "time exceeded" error message indicates that an intermediate switch router has seen and discarded the probe. A "port unreachable" erro ...
Ethernet LANs - University of Calgary
... connected to a hub with twistedpair copper wire. Hub sends a copy out on all of its other interfaces. Switch-based star network: Hub is replaced by switch, which sends a copy to the target host. ...
... connected to a hub with twistedpair copper wire. Hub sends a copy out on all of its other interfaces. Switch-based star network: Hub is replaced by switch, which sends a copy to the target host. ...
PowerPoint 97
... but Internet does not have a simple way to identify streams of packets nor are are routers required to cooperate in providing quality and what about pricing! ...
... but Internet does not have a simple way to identify streams of packets nor are are routers required to cooperate in providing quality and what about pricing! ...
INTRODUCTION - mien phi
... Presentation: formats data for presentation to the user, provides data interfaces, data compression and translation between different data formats Session: responsible for initiating, maintaining and terminating each logical session between sender and receiver Transport: deals with end-to-end issues ...
... Presentation: formats data for presentation to the user, provides data interfaces, data compression and translation between different data formats Session: responsible for initiating, maintaining and terminating each logical session between sender and receiver Transport: deals with end-to-end issues ...
Access Networks - The Computer Laboratory
... POTS/ISDN, up to 18kft ADSL G.Lite: as above but 1.5Mbsp ds, 512Kbps us “self install” splitter-less ADSL VDSL: 6-52Mbps ds, 2Mbps us, 1pair, POTS, 1-16Kft also 1,2,4,6,8,12Mbps symmetric Bandwidth negotiation and noise monitoring Asymmetric variants to reflect current traffic patterns ...
... POTS/ISDN, up to 18kft ADSL G.Lite: as above but 1.5Mbsp ds, 512Kbps us “self install” splitter-less ADSL VDSL: 6-52Mbps ds, 2Mbps us, 1pair, POTS, 1-16Kft also 1,2,4,6,8,12Mbps symmetric Bandwidth negotiation and noise monitoring Asymmetric variants to reflect current traffic patterns ...
Computer Network
... In 1964, researchers at Dartmouth developed the Dartmouth Time Sharing System for distributed users of large computer systems. The same year, at Massachusetts Institute of Technology, a research group supported by General Electric and Bell Labs used a computer to route and manage telephone connectio ...
... In 1964, researchers at Dartmouth developed the Dartmouth Time Sharing System for distributed users of large computer systems. The same year, at Massachusetts Institute of Technology, a research group supported by General Electric and Bell Labs used a computer to route and manage telephone connectio ...
lect7_serial1
... be sent at the agreed-upon data rate, and the receiver listens for pulses at that same rate. Share a clock. • There isn’t one common clock in asynchronous serial communication; instead, both devices have their own clock and agree on a rate to which to set their clocks. ...
... be sent at the agreed-upon data rate, and the receiver listens for pulses at that same rate. Share a clock. • There isn’t one common clock in asynchronous serial communication; instead, both devices have their own clock and agree on a rate to which to set their clocks. ...
of MARCH with MACA
... each MH keeps sensing the channel and will not transmit until the channel is free ...
... each MH keeps sensing the channel and will not transmit until the channel is free ...
RTUs - srldc
... into loss of RTU Frequent failure of Applications resulting into failure of DATA SERVERS. Interruption of data and loss of HIM data. In HDR different values at the same time point with change of sample rate In HIM Frequent crashing of Oracle, reset of juke box,long term storage of Data Repor ...
... into loss of RTU Frequent failure of Applications resulting into failure of DATA SERVERS. Interruption of data and loss of HIM data. In HDR different values at the same time point with change of sample rate In HIM Frequent crashing of Oracle, reset of juke box,long term storage of Data Repor ...
Chapter 14: Local Area Network Technology
... increase with data rate Alternative to connecting all devices is to have multiple tiers ...
... increase with data rate Alternative to connecting all devices is to have multiple tiers ...
Lecture8
... • Circuit switched data formats are much more common than their packet switched counterparts.( F ) • One of the most important application for packet data is Web browsing. ( T ) • The quality that the call is being made determines the data transmission rates of 3G. ( F ) ...
... • Circuit switched data formats are much more common than their packet switched counterparts.( F ) • One of the most important application for packet data is Web browsing. ( T ) • The quality that the call is being made determines the data transmission rates of 3G. ( F ) ...
P4: Specifying data planes
... • A tool for third parties to program the network • A language for: • distributed computations • network middleboxes (NFV) • network operating systems ...
... • A tool for third parties to program the network • A language for: • distributed computations • network middleboxes (NFV) • network operating systems ...
Wireless Communications and Networks
... Circuits provided by a common carrier Consists of interconnected switching nodes ...
... Circuits provided by a common carrier Consists of interconnected switching nodes ...
How Fast Is the Internet - Faculty of Computer Science
... When an acknowledgement is received, congestion window is increased When a packet is lost (and retransmitted) congestion window is reduced Net transmission rate is WinSize / RTT ...
... When an acknowledgement is received, congestion window is increased When a packet is lost (and retransmitted) congestion window is reduced Net transmission rate is WinSize / RTT ...
ch 11 Data Network Connectivity
... Filter out broadcast transmissions to alleviate network congestion Prevent certain types of traffic from getting to a network, enabling customized segregation and security Support simultaneous local and remote connectivity Provide higher network fault tolerance through redundant components, ...
... Filter out broadcast transmissions to alleviate network congestion Prevent certain types of traffic from getting to a network, enabling customized segregation and security Support simultaneous local and remote connectivity Provide higher network fault tolerance through redundant components, ...
Data Network Connectivity
... different protocols, network access methods, or transmission types to communicate with each other. Voice/data gateway - allows a data network to issue data signals over a voice network. Wireless gateway - integrates a wireline network with a wireless network. ...
... different protocols, network access methods, or transmission types to communicate with each other. Voice/data gateway - allows a data network to issue data signals over a voice network. Wireless gateway - integrates a wireline network with a wireless network. ...
TCP/IP Architecture TCP/IP ARCHITECTURE
... IP address needs to be resolved to physical address at each IP network interface Example: Ethernet uses 48-bit addresses o Each Ethernet network interface card (NIC) has globally unique Medium Access Control (MAC) or physical address o First 24 bits identify NIC manufacturer; second 24 bits are ...
... IP address needs to be resolved to physical address at each IP network interface Example: Ethernet uses 48-bit addresses o Each Ethernet network interface card (NIC) has globally unique Medium Access Control (MAC) or physical address o First 24 bits identify NIC manufacturer; second 24 bits are ...
Ethernet - Inst.eecs.berkeley.edu
... • Multiple Access: multiple computers use the same shared media. Each uses same access algorithm. • Collision Detection: Listen to medium – detect if another station’s signal interferes – back off and try again later. ...
... • Multiple Access: multiple computers use the same shared media. Each uses same access algorithm. • Collision Detection: Listen to medium – detect if another station’s signal interferes – back off and try again later. ...