15. - 건국대학교
... 16.1 Quality of Multimedia Data Transmission Quality of Service (QoS) depends on many parameters Data rate: a measure of transmission speed. Latency (maximum frame/packet delay): maximum time needed from transmission to reception. Packet loss or error rate: a measure (in percentage) of erro ...
... 16.1 Quality of Multimedia Data Transmission Quality of Service (QoS) depends on many parameters Data rate: a measure of transmission speed. Latency (maximum frame/packet delay): maximum time needed from transmission to reception. Packet loss or error rate: a measure (in percentage) of erro ...
Cable Modems - SMS Varanasi
... questions about its capability to serve the Internet community much longer. IPv4 was finished in the 1970s and has started to show its age. The main issue surrounding IPv4 is addressing—or, the lack of addressing—because many experts believe that we are nearly out of the four billion addresses avail ...
... questions about its capability to serve the Internet community much longer. IPv4 was finished in the 1970s and has started to show its age. The main issue surrounding IPv4 is addressing—or, the lack of addressing—because many experts believe that we are nearly out of the four billion addresses avail ...
CSC383 Lecture notes Ch 1 2 3
... problem into subparts, called layers, with the interfaces between the layers defined by protocols. ...
... problem into subparts, called layers, with the interfaces between the layers defined by protocols. ...
Hour 4
... Flags— The Flags field indicates fragmentation possibilities. The first bit is unused and should always have a value of zero. The next bit is called the DF (Don't Fragment) flag. The DF flag signifies whether fragmentation is allowed (value = 0) or not (value = 1), The next bit is the MF (More Fragm ...
... Flags— The Flags field indicates fragmentation possibilities. The first bit is unused and should always have a value of zero. The next bit is called the DF (Don't Fragment) flag. The DF flag signifies whether fragmentation is allowed (value = 0) or not (value = 1), The next bit is the MF (More Fragm ...
223.1.1.4
... Datagram from A to E: • look up network address of E •E on different network •A, E not directly attached •routing table: next hop router to E is 223.1.1.4 •link layer sends datagram to router 223.1.1.4 inside link-layer ...
... Datagram from A to E: • look up network address of E •E on different network •A, E not directly attached •routing table: next hop router to E is 223.1.1.4 •link layer sends datagram to router 223.1.1.4 inside link-layer ...
ADSL Network - Binus Repository
... that have been preconfigured by the carrier are used. • Virtual circuits may be established dynamically by sending signaling messages to the network. In this case they are called switched virtual circuits (SVCs). ...
... that have been preconfigured by the carrier are used. • Virtual circuits may be established dynamically by sending signaling messages to the network. In this case they are called switched virtual circuits (SVCs). ...
Network Architecture
... Distributed – number of hubs connected to a series of central hubs in a hierarchy Collapsed – a router or switch as the single central connection point for multiple subnetworks Parallel – robust; more than one connection from the central router to each network segment ...
... Distributed – number of hubs connected to a series of central hubs in a hierarchy Collapsed – a router or switch as the single central connection point for multiple subnetworks Parallel – robust; more than one connection from the central router to each network segment ...
Internet History and Architecture
... The first problem in TCP is that packet loss was detected by a timeout which could be very long (implementations used a timer granularity of 500 ms). Use of duplicate acks speeds up detection - this is the “fast retransmit” part of FRR. The second problem is the response to congestion - the additi ...
... The first problem in TCP is that packet loss was detected by a timeout which could be very long (implementations used a timer granularity of 500 ms). Use of duplicate acks speeds up detection - this is the “fast retransmit” part of FRR. The second problem is the response to congestion - the additi ...
Lecture04
... … and retransmits the SYN if needed How should the TCP sender set the timer? Sender has no idea how far away the receiver is Some TCPs use a default of 3 or 6 seconds ...
... … and retransmits the SYN if needed How should the TCP sender set the timer? Sender has no idea how far away the receiver is Some TCPs use a default of 3 or 6 seconds ...
TamVu_TCP_lec_DR13 - Winlab
... Applications requirements vs. IP layer limitations Guarantee message delivery Network may drop messages. Deliver messages in the same order they are sent Messages may be reordered in networks and incurs a long delay. Delivers at most one copy of each message Messages may duplicate in ne ...
... Applications requirements vs. IP layer limitations Guarantee message delivery Network may drop messages. Deliver messages in the same order they are sent Messages may be reordered in networks and incurs a long delay. Delivers at most one copy of each message Messages may duplicate in ne ...
s03_Katz - Wayne State University
... DC Networking and Power • Within DC racks, network equipment often the “hottest” components in the hot spot • Network opportunities for power reduction – Transition to higher speed interconnects (10 Gbs) at DC scales and densities – High function/high power assists embedded in network element (e.g. ...
... DC Networking and Power • Within DC racks, network equipment often the “hottest” components in the hot spot • Network opportunities for power reduction – Transition to higher speed interconnects (10 Gbs) at DC scales and densities – High function/high power assists embedded in network element (e.g. ...
Intro. to IP--Adhar - People Server at UNCW
... • Subnets are used if you have more machines than IP addresses • Allows a network to be split into several parts for internal use, but still act like a single network to the outside world • IP packets are routed depending on their destination • Other network: forwarded to next router • This network: ...
... • Subnets are used if you have more machines than IP addresses • Allows a network to be split into several parts for internal use, but still act like a single network to the outside world • IP packets are routed depending on their destination • Other network: forwarded to next router • This network: ...
Chapter 13 - Anvari.Net
... • used when two devices attached to different networks • internet protocol (IP) is used to provide the routing function • routers are used to relay data from one network to another ...
... • used when two devices attached to different networks • internet protocol (IP) is used to provide the routing function • routers are used to relay data from one network to another ...
Network+ Guide to Networks 6th Edition
... – Late 1990s: ICANN (Internet Corporation for Assigned Names and Numbers) • Private nonprofit corporation • Remains responsible for IP addressing and domain name management • IANA performs system administration ...
... – Late 1990s: ICANN (Internet Corporation for Assigned Names and Numbers) • Private nonprofit corporation • Remains responsible for IP addressing and domain name management • IANA performs system administration ...
networks
... 54. A modern car has many devices which should be connected by a LAN. There are many concurrent communications among the devices with different priorities; for example, a high priority session is that a control CPU needs to issue commands to brakes; a relatively low priority session is that the disp ...
... 54. A modern car has many devices which should be connected by a LAN. There are many concurrent communications among the devices with different priorities; for example, a high priority session is that a control CPU needs to issue commands to brakes; a relatively low priority session is that the disp ...
DuraNET 3000
... 2+ version features a specialized Catalyst 2960 LAN Base Image, whereas the Layer 3 version offers a Catalyst 3750 IP services image with a Layer 3+ feature set. The Layer 3 switch supports high performance routing features, such as static, InterVLAN routing, dynamic routing protocols, multicast and ...
... 2+ version features a specialized Catalyst 2960 LAN Base Image, whereas the Layer 3 version offers a Catalyst 3750 IP services image with a Layer 3+ feature set. The Layer 3 switch supports high performance routing features, such as static, InterVLAN routing, dynamic routing protocols, multicast and ...
DoS
... • DoS is caused by asymmetric state allocation – If responder opens new state for each connection attempt, attacker can initiate thousands of connections from bogus or forged IP addresses ...
... • DoS is caused by asymmetric state allocation – If responder opens new state for each connection attempt, attacker can initiate thousands of connections from bogus or forged IP addresses ...
CDPD: Cellular Digital Packet Data
... • AMPS generally has unused channels. – Blocked calls when all channels are allocated. – 1% block probability => all channels used only 1% of the time. ...
... • AMPS generally has unused channels. – Blocked calls when all channels are allocated. – 1% block probability => all channels used only 1% of the time. ...
The Internet and Its Uses
... internetworking device used in carrier networks. These devices typically switch traffic such as Frame Relay, ATM, or X.25, and operate at the Data Link layer of the OSI reference model. Router-Provides internetworking and WAN access interface ports that are used to connect to the service provide ...
... internetworking device used in carrier networks. These devices typically switch traffic such as Frame Relay, ATM, or X.25, and operate at the Data Link layer of the OSI reference model. Router-Provides internetworking and WAN access interface ports that are used to connect to the service provide ...
IP address - DePaul University
... • File Transfer Protocol (FTP) – Transfers files between computers ...
... • File Transfer Protocol (FTP) – Transfers files between computers ...
Ground/Ground IP technical manual
... A worldwide computer communications network that interconnects WANs, LANs, and computers by adopting common interface services and protocols based on the TCP/IP technology ...
... A worldwide computer communications network that interconnects WANs, LANs, and computers by adopting common interface services and protocols based on the TCP/IP technology ...
Internet protocol suite
The Internet protocol suite is the computer networking model and set of communications protocols used on the Internet and similar computer networks. It is commonly known as TCP/IP, because among many protocols, the Transmission Control Protocol (TCP) and the Internet Protocol (IP) is the accepted and most widely used protocol in Internet. Often also called the Internet model, it was originally also known as the DoD model, because the development of the networking model was funded by DARPA, an agency of the United States Department of Defense.TCP/IP provides end-to-end connectivity specifying how data should be packetized, addressed, transmitted, routed and received at the destination. This functionality is organized into four abstraction layers which are used to sort all related protocols according to the scope of networking involved. From lowest to highest, the layers are the link layer, containing communication technologies for a single network segment (link); the internet layer, connecting hosts across independent networks, thus establishing internetworking; the transport layer handling host-to-host communication; and the application layer, which provides process-to-process application data exchange.The TCP/IP model and related protocol models are maintained by the Internet Engineering Task Force (IETF).