Chapter 1. Introduction to Data Communications
... Forward Error Correction (FEC) • Receiving device can correct incoming messages itself (without retransmission) • Requires extra corrective information – Sent along with the data – Allows data to be checked and corrected by the receiver – Amount of extra information: usually 50-100% of the data ...
... Forward Error Correction (FEC) • Receiving device can correct incoming messages itself (without retransmission) • Requires extra corrective information – Sent along with the data – Allows data to be checked and corrected by the receiver – Amount of extra information: usually 50-100% of the data ...
CS 352 Internet Technology
... • Each layer should perform a well-defined function • The layer boundaries should be chosen to minimize information flow across the interfaces • The number of layers should be large enough that distinct functions need not be thrown together in the same layer out of necessity, and small enough that t ...
... • Each layer should perform a well-defined function • The layer boundaries should be chosen to minimize information flow across the interfaces • The number of layers should be large enough that distinct functions need not be thrown together in the same layer out of necessity, and small enough that t ...
Guide to TCP/IP, Second Edition
... from all segments that act like a single network segment, proxy ARP’s job is to forward ARP requests from one actual network segment to another, when required; enable hardware address resolution; and then to deliver corresponding replies to their original senders • Also, when a router configured for ...
... from all segments that act like a single network segment, proxy ARP’s job is to forward ARP requests from one actual network segment to another, when required; enable hardware address resolution; and then to deliver corresponding replies to their original senders • Also, when a router configured for ...
AN414
... There are a few additional features and differences in the SCC2692 which are discussed below. ...
... There are a few additional features and differences in the SCC2692 which are discussed below. ...
A Chemical Memory Snapshot.
... algorithm as long as the key is processed inside the static memory. A common way to read out secret data directly is probing [5, 6]. Thereby, a probing needle establishes electrical contact to the surface of the chip. As the technology size is getting smaller, this becomes more and more difficult. A ...
... algorithm as long as the key is processed inside the static memory. A common way to read out secret data directly is probing [5, 6]. Thereby, a probing needle establishes electrical contact to the surface of the chip. As the technology size is getting smaller, this becomes more and more difficult. A ...
Network layer
... network portion of address of arbitrary length address format: a.b.c.d/x, where x is # bits in network portion of address network ...
... network portion of address of arbitrary length address format: a.b.c.d/x, where x is # bits in network portion of address network ...
Traffic Classification
... In a typical network, the traffic through the network is heterogeneous and consists of flows from multiple applications and utilities. Many of these applications are unique and have their own requirements with respect to network parameters such as delay, jitter, etc. Unless these requirements are me ...
... In a typical network, the traffic through the network is heterogeneous and consists of flows from multiple applications and utilities. Many of these applications are unique and have their own requirements with respect to network parameters such as delay, jitter, etc. Unless these requirements are me ...
ppt
... • Yes, but only to improve performance • If network is highly unreliable • Adding some level of reliability helps performance, not correctness • Don’t try to achieve perfect reliability! • Implementing a functionality at a lower level should have minimum performance impact on the applications that d ...
... • Yes, but only to improve performance • If network is highly unreliable • Adding some level of reliability helps performance, not correctness • Don’t try to achieve perfect reliability! • Implementing a functionality at a lower level should have minimum performance impact on the applications that d ...
Figure 1.5. Hybrid Wireless Mesh Network
... 802.11a/g wireless LAN interface is the peak link-layer data rate. When all the overheads, MAC contention, 802.11 headers, 802.11 ACK, packet errors are accounted for the actual goodput available to applications is almost halved. In addition, the maximum link layer data rate falls quickly with incre ...
... 802.11a/g wireless LAN interface is the peak link-layer data rate. When all the overheads, MAC contention, 802.11 headers, 802.11 ACK, packet errors are accounted for the actual goodput available to applications is almost halved. In addition, the maximum link layer data rate falls quickly with incre ...
NFV_SDN - Computer Networks
... cost, difficult provisioning Network Infrastructure high CAPEX cost, high complexity, proprietary, protocol soup ...
... cost, difficult provisioning Network Infrastructure high CAPEX cost, high complexity, proprietary, protocol soup ...
Application Layer Multicast
... atop the physical network. In a hierarchical topology, we introduce a hierarchy into the overlay forming a multi-layer overlay. Hierarchical topology are highly scalable and incur low management overhead Children nodes cannot form overlay links across clusters Additional overhead required for mainte ...
... atop the physical network. In a hierarchical topology, we introduce a hierarchy into the overlay forming a multi-layer overlay. Hierarchical topology are highly scalable and incur low management overhead Children nodes cannot form overlay links across clusters Additional overhead required for mainte ...
IP addresses
... How does an application initiate a connection? How does an application actually transmit/receive data? How does an application know data has been received? ...
... How does an application initiate a connection? How does an application actually transmit/receive data? How does an application know data has been received? ...
Document
... compliant with the P802.15.4 PAR. It is intended to support both master-slave and virtual peer-to-peer communications for low data rate networks. It is designed to support ultra low power consumption for battery operated nodes at very low implementation cost. The network is capable of supporting 254 ...
... compliant with the P802.15.4 PAR. It is intended to support both master-slave and virtual peer-to-peer communications for low data rate networks. It is designed to support ultra low power consumption for battery operated nodes at very low implementation cost. The network is capable of supporting 254 ...
Basics of Networking
... The network layer is concerned with controlling the operation of the subnet. A ROUTER is used to determining how packets are routed from source to destination. If one path is busy, then the router will select another path for the packets to travel. So really, the packets can all have different paths ...
... The network layer is concerned with controlling the operation of the subnet. A ROUTER is used to determining how packets are routed from source to destination. If one path is busy, then the router will select another path for the packets to travel. So really, the packets can all have different paths ...
dbtma
... Stop when completing transmitting RTS BTr (Receiver Busy Tone) Set up by the node which receives RTS Stop when completely receives the data packet All nodes sensing any busy tone are not allowed to send RTS Any node sensing no busy tone is allowed to transmit ...
... Stop when completing transmitting RTS BTr (Receiver Busy Tone) Set up by the node which receives RTS Stop when completely receives the data packet All nodes sensing any busy tone are not allowed to send RTS Any node sensing no busy tone is allowed to transmit ...
Hop-By-Hop Best Effort Link Layer Reliability in Named Data
... reports a gap to the sender if the receiver has not received one of the previous 3 frames), the receiver will transmit this ACK immediately. ACKs that do not report gaps are piggybacked on future traffic. This design aims to minimize both the loss detection time and the cost of transmitting standalo ...
... reports a gap to the sender if the receiver has not received one of the previous 3 frames), the receiver will transmit this ACK immediately. ACKs that do not report gaps are piggybacked on future traffic. This design aims to minimize both the loss detection time and the cost of transmitting standalo ...
QoS Requirements of Multimedia Applications
... mobile devices to send their data. GRPS is referred to as “always connected”, since it can perform an almost instant transmission. Theoretically, GRPS can send data at a rate of 171.2 Kbps, but in reality, to reach this, an operator must grant them all of the bandwidth, referred to as timeslots. Sin ...
... mobile devices to send their data. GRPS is referred to as “always connected”, since it can perform an almost instant transmission. Theoretically, GRPS can send data at a rate of 171.2 Kbps, but in reality, to reach this, an operator must grant them all of the bandwidth, referred to as timeslots. Sin ...
CEN 4500C Computer Networks Fundamentals
... apps (especially interactive) tolerate loss (up to ~10%) but do not tolerate delay or jitter. TCP’s congestion control and reliability mechanisms lead to 100% delivery but lead to variable delays (i.e., increased jitter), and hence is technically unsuitable for voice/video delivery]. R6. Is it possi ...
... apps (especially interactive) tolerate loss (up to ~10%) but do not tolerate delay or jitter. TCP’s congestion control and reliability mechanisms lead to 100% delivery but lead to variable delays (i.e., increased jitter), and hence is technically unsuitable for voice/video delivery]. R6. Is it possi ...
Week6LectureNote
... communication from one end device to another end device. • Examine the most common Network layer protocol, Internet Protocol (IP), and its features for providing connectionless and best-effort service. • Understand the principles used to guide the division, or grouping, of devices into networks. • U ...
... communication from one end device to another end device. • Examine the most common Network layer protocol, Internet Protocol (IP), and its features for providing connectionless and best-effort service. • Understand the principles used to guide the division, or grouping, of devices into networks. • U ...
Chapter 5
... 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 ...
... 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 ...
TCP Ports
... of the program, as their book first appeared in 1933, years (decades!) before the operating system and network infrastructure were finalized. The book describes networking in terms even a child could understand, choosing to anthropomorphize the underlying packet structure. The ping packet is describ ...
... of the program, as their book first appeared in 1933, years (decades!) before the operating system and network infrastructure were finalized. The book describes networking in terms even a child could understand, choosing to anthropomorphize the underlying packet structure. The ping packet is describ ...
LAN - Temple CIS
... The Link Layer and LANs A note on the use of these Powerpoint slides: We’re making these slides freely available to all (faculty, students, readers). They’re in PowerPoint form so you see the animations; and can add, modify, and delete slides (including this one) and slide content to suit your needs ...
... The Link Layer and LANs A note on the use of these Powerpoint slides: We’re making these slides freely available to all (faculty, students, readers). They’re in PowerPoint form so you see the animations; and can add, modify, and delete slides (including this one) and slide content to suit your needs ...