Security Attacks
... Network Layer Two important functions: • routing: determine path from source to dest. • forwarding: move packets from router’s input to output ...
... Network Layer Two important functions: • routing: determine path from source to dest. • forwarding: move packets from router’s input to output ...
Chapter 1: A First Look at Windows 2000 Professional
... In this network a Class C address with a 255.255.255.0 mask has been used for each subnet ...
... In this network a Class C address with a 255.255.255.0 mask has been used for each subnet ...
LANs - UQAC
... physically a “star” topology, logically, it is a “bus” transmission from a station seen by all others if two stations transmit at the same time, we ...
... physically a “star” topology, logically, it is a “bus” transmission from a station seen by all others if two stations transmit at the same time, we ...
ch._1_-_guided_reading
... 9. Server malfunctions or failures mean users ________________________________ lose access to network resources such as _____________________, drives, and __________________________. ...
... 9. Server malfunctions or failures mean users ________________________________ lose access to network resources such as _____________________, drives, and __________________________. ...
Troubleshooting
... can help you Troubleshoot Networks ▫ Logical networking models separate network functionality into modular layers. ▫ Each layer of the OSI or TCP/IP model has specific functions and protocols. ...
... can help you Troubleshoot Networks ▫ Logical networking models separate network functionality into modular layers. ▫ Each layer of the OSI or TCP/IP model has specific functions and protocols. ...
IP Convergence
... Digitally, voice can be mapped with 8000 samples per second, with each sample quantized to 256 discrete levels: 8KHz of 8 bit samples The PSTN is a time switched network with a base 125usec clock pulse “Digital Circuits” are derived from these time-switched 64K synchronized bit streams, using multip ...
... Digitally, voice can be mapped with 8000 samples per second, with each sample quantized to 256 discrete levels: 8KHz of 8 bit samples The PSTN is a time switched network with a base 125usec clock pulse “Digital Circuits” are derived from these time-switched 64K synchronized bit streams, using multip ...
Routing Scalability
... necessary to translate hosts’ topology independent addresses (identifiers) to topology dependent addresses (locators) – Traffic-driven at ingress "edge": forwarding entries preceded by ID-to-RLOC mapping entries (encapsulation) populated per incoming traffic arrival – Memory-less at egress "edge": d ...
... necessary to translate hosts’ topology independent addresses (identifiers) to topology dependent addresses (locators) – Traffic-driven at ingress "edge": forwarding entries preceded by ID-to-RLOC mapping entries (encapsulation) populated per incoming traffic arrival – Memory-less at egress "edge": d ...
PPT
... Message paths are short (preferably O(1)) Squander no opportunities Send data through everyone ...
... Message paths are short (preferably O(1)) Squander no opportunities Send data through everyone ...
Assignment 3 Network Components Johnson
... that allows wireless devices, such as an iPad or iPod to connect to a wired network. In home use, the wireless router is also the wireless access point. A public application of the WAP is a “hotspot”, which allows wireless clients to connect to the network. A wireless AP or wireless router can cost ...
... that allows wireless devices, such as an iPad or iPod to connect to a wired network. In home use, the wireless router is also the wireless access point. A public application of the WAP is a “hotspot”, which allows wireless clients to connect to the network. A wireless AP or wireless router can cost ...
Basic Networking Hardware
... or backbone. Bus networks are relatively inexpensive and easy to install for small networks. Ethernet systems use a bus topology. star topology: All devices are connected to a central hub. Star networks are relatively easy to install and manage, but bottlenecks can occur because all data must pass t ...
... or backbone. Bus networks are relatively inexpensive and easy to install for small networks. Ethernet systems use a bus topology. star topology: All devices are connected to a central hub. Star networks are relatively easy to install and manage, but bottlenecks can occur because all data must pass t ...
Chapter 7 Part 2 Networks
... • How is data sent through a network? – Network navigation devices facilitate and control the flow of data through a network. Data is sent over transmission media in bundles. Each bundle is called a packet. – Router – transfers packets of data between two or more networks. (example: home network an ...
... • How is data sent through a network? – Network navigation devices facilitate and control the flow of data through a network. Data is sent over transmission media in bundles. Each bundle is called a packet. – Router – transfers packets of data between two or more networks. (example: home network an ...
Computer Networks and Internets
... in TCP/IP: Trivial File Transfer Protocol (TFTP) Uses UDP instead of TCP Only supports file transfer Useful for bootstrapping a hardware device that has no disk for system software ...
... in TCP/IP: Trivial File Transfer Protocol (TFTP) Uses UDP instead of TCP Only supports file transfer Useful for bootstrapping a hardware device that has no disk for system software ...
IT 141: Information Systems I
... called a node 2. Modem – uses phone lines to transmit data over a network 3. Network Interface Card (NIC) – a peripheral to connect to a local area network with Ethernet cable. 4. Hub/Switch – a device that connects nodes on a network together (hub slow, switch fast) 5. Router – connects two differe ...
... called a node 2. Modem – uses phone lines to transmit data over a network 3. Network Interface Card (NIC) – a peripheral to connect to a local area network with Ethernet cable. 4. Hub/Switch – a device that connects nodes on a network together (hub slow, switch fast) 5. Router – connects two differe ...
ppt
... • Building blocks of a network architecture • Each protocol object has two different interfaces – service interface: operations on this protocol – peer-to-peer interface: messages exchanged with peer ...
... • Building blocks of a network architecture • Each protocol object has two different interfaces – service interface: operations on this protocol – peer-to-peer interface: messages exchanged with peer ...
Chapter02
... Full-duplex Ethernet can be used in three situations: • With a connection from a switch to a host • With a connection from a switch to a switch • With a connection from a host to a host using a crossover cable ...
... Full-duplex Ethernet can be used in three situations: • With a connection from a switch to a host • With a connection from a switch to a switch • With a connection from a host to a host using a crossover cable ...
Control of Wide Area Networks
... out specific data packets for scrutiny. WAN analyzers are being developed with capabilities to provide fault management filters and rule-based judgments, performance trend analysis, and reports that identify problems and assign responsibility for its diagnosis and tracking. For efficient monitoring ...
... out specific data packets for scrutiny. WAN analyzers are being developed with capabilities to provide fault management filters and rule-based judgments, performance trend analysis, and reports that identify problems and assign responsibility for its diagnosis and tracking. For efficient monitoring ...
INTERNET
... E-mail messages are text-based, but other types of file can also be sent as ‘attachments’. E-mails that are received wait in a user's inbox until the user is ready to read them. (Unlike a telephone call, the user is free to ignore e-mails until they have time to deal with them.) ...
... E-mail messages are text-based, but other types of file can also be sent as ‘attachments’. E-mails that are received wait in a user's inbox until the user is ready to read them. (Unlike a telephone call, the user is free to ignore e-mails until they have time to deal with them.) ...
Enhanced Developments in Wireless Mobile Networks
... In 4G the mobile phone is not only for calling but its something extraordinary device that can be used for variety of purposes. One such application in 4G is context awareness. For example if the mobile user is passing by an office where he/she is having an appointment to meet someone and they have ...
... In 4G the mobile phone is not only for calling but its something extraordinary device that can be used for variety of purposes. One such application in 4G is context awareness. For example if the mobile user is passing by an office where he/she is having an appointment to meet someone and they have ...
Building an Application Server for Home Network based on Android
... Android platform is developed by Google Inc. since 2007, this open and free software stack includes an operating system, middleware and also key applications for use on mobile devices originally, now Android is an Open Handset Alliance Project. Application servers refer to the service, hardware, and ...
... Android platform is developed by Google Inc. since 2007, this open and free software stack includes an operating system, middleware and also key applications for use on mobile devices originally, now Android is an Open Handset Alliance Project. Application servers refer to the service, hardware, and ...
emulab.net: A Network Emulation and Distributed Systems Testbed
... interconnect bandwidth In our example, there are four switches, each with 400 Mbps interconnect More than 4 links mapped onto a given interconnect would produce an artifact because of the bottleneck In solution, node color indicates its switch ...
... interconnect bandwidth In our example, there are four switches, each with 400 Mbps interconnect More than 4 links mapped onto a given interconnect would produce an artifact because of the bottleneck In solution, node color indicates its switch ...
ppt
... • Personal mobility allows the addressing of a single user • Located at different terminals by using the same logical address • Service mobility allows users to maintain access to services while moving or changing devices and network service providers • SIP implements these using URLs, proxies, and ...
... • Personal mobility allows the addressing of a single user • Located at different terminals by using the same logical address • Service mobility allows users to maintain access to services while moving or changing devices and network service providers • SIP implements these using URLs, proxies, and ...
The BT Cardway Service
... modem-to-modem communication or ISDN 64kb/sec data communication. Calls can also be sent via GPRS and IP technologies. Customers can also use point to point circuits such as X25 and IP. It should also be noted that data can be sent as X25 protocol over IP if required. 2.4 Call Clearance On completio ...
... modem-to-modem communication or ISDN 64kb/sec data communication. Calls can also be sent via GPRS and IP technologies. Customers can also use point to point circuits such as X25 and IP. It should also be noted that data can be sent as X25 protocol over IP if required. 2.4 Call Clearance On completio ...
Measuring Application Performance with the Fluke Networks
... performance testing Application deployment When deploying a new mission-critical application, it is important to determine whether the network can provide the anticipated response time. The Distributed Protocol Inspector is invaluable in this process because it can capture the traffic pattern at var ...
... performance testing Application deployment When deploying a new mission-critical application, it is important to determine whether the network can provide the anticipated response time. The Distributed Protocol Inspector is invaluable in this process because it can capture the traffic pattern at var ...
oneM2M High Level Overview
... • Resources are addressable through a tree-like structure, with links that can be either “hard-coded” in the tree hierarchy (plain lines below) or freely reference another part or the tree (dotted lines below) ...
... • Resources are addressable through a tree-like structure, with links that can be either “hard-coded” in the tree hierarchy (plain lines below) or freely reference another part or the tree (dotted lines below) ...
Recursive InterNetwork Architecture (RINA)
The Recursive InterNetwork Architecture (RINA) is a computer network architecture that unifies distributed computing and telecommunications. RINA's fundamental principle is that computer networking is just Inter-Process Communication or IPC. RINA reconstructs the overall structure of the Internet, forming a model that comprises a single repeating layer, the DIF (Distributed IPC Facility), which is the minimal set of components required to allow distributed IPC between application processes. RINA inherently supports mobility, multi-homing and Quality of Service without the need for extra mechanisms, provides a secure and programmable environment, motivates for a more competitive marketplace, and allows for a seamless adoption.