การสื่อสารข้อมูล
... • Transceivers must be within line of sight of each other (directly or via reflection ). • Unlike microwaves, infrared does not penetrate walls. • Very common with remote control devices, but can also be used for device-to-device transfers, such as PDA to computer. Data Communication and Computer Ne ...
... • Transceivers must be within line of sight of each other (directly or via reflection ). • Unlike microwaves, infrared does not penetrate walls. • Very common with remote control devices, but can also be used for device-to-device transfers, such as PDA to computer. Data Communication and Computer Ne ...
Introduction to networking, protocol layers, TCP/IP protocol suite
... third packet length = 220 = 20 new IP header + 200 old data, offset 1200 the new fragments have the same unique frag id as the original why? ...
... third packet length = 220 = 20 new IP header + 200 old data, offset 1200 the new fragments have the same unique frag id as the original why? ...
Aalborg Universitet
... describes the scenario under investigation. Section II presents an analysis of the proposed network coding approach. In Section IV we introduce our implementation using GF(2) and coding throughputs obtained with this implementation. The final conclusions are drawn in Section V. ...
... describes the scenario under investigation. Section II presents an analysis of the proposed network coding approach. In Section IV we introduce our implementation using GF(2) and coding throughputs obtained with this implementation. The final conclusions are drawn in Section V. ...
CISSP – Chapter 7
... physically sending electric signals over a medium. Is concerned with – specific cabling, – voltages and – Timings ...
... physically sending electric signals over a medium. Is concerned with – specific cabling, – voltages and – Timings ...
PowerPoint Presentation - Dynamic Routing
... OSPF v1 published in 1989 – RFC1131 OSPF v2 published in 1991 – RFC1247 Developments continued through the 90s and today ...
... OSPF v1 published in 1989 – RFC1131 OSPF v2 published in 1991 – RFC1247 Developments continued through the 90s and today ...
Slides
... Since messages can be quite large, this can cause: – buffering problems at the router. – high mean delay times. ...
... Since messages can be quite large, this can cause: – buffering problems at the router. – high mean delay times. ...
ppt
... Dest 128.2.209.100 routing to same machine Dest 128.2.0.0 other hosts on same ethernet ...
... Dest 128.2.209.100 routing to same machine Dest 128.2.0.0 other hosts on same ethernet ...
FECC-III Integration Issues
... • Accesses host memory via point-to-point fiber optic link instead of parallel I/O bus. • 1st generation supports MBCD-II’s four strings of SLAC serial CAMAC crate controllers (5 MHz, bit serial, half duplex). • 2nd generation adds support for four strings of IEEE standard crate controllers (5 MHz, ...
... • Accesses host memory via point-to-point fiber optic link instead of parallel I/O bus. • 1st generation supports MBCD-II’s four strings of SLAC serial CAMAC crate controllers (5 MHz, bit serial, half duplex). • 2nd generation adds support for four strings of IEEE standard crate controllers (5 MHz, ...
Document
... When dynamically assigned satellite bandwidth to remote VSATs, it imposes a certain amount of delay. (Eg. Time delay during the change of modem parameters). Such delay has an impact of the QoS on various applications. ...
... When dynamically assigned satellite bandwidth to remote VSATs, it imposes a certain amount of delay. (Eg. Time delay during the change of modem parameters). Such delay has an impact of the QoS on various applications. ...
Pocket Guide - Industrial Networking Solutions
... which means the network can be expanded to well over 3000 km. The networks mostly consist of several autonomous subsystems, each based on a HIPER-Ring. In order to guarantee redundancy across networks, additional methods must be used. The redundant HIPER-Ring coupling connects the ring structures to ...
... which means the network can be expanded to well over 3000 km. The networks mostly consist of several autonomous subsystems, each based on a HIPER-Ring. In order to guarantee redundancy across networks, additional methods must be used. The redundant HIPER-Ring coupling connects the ring structures to ...
Chapter5_L5
... Addressing: routing to another LAN walkthrough: send datagram from A to B via R focus on addressing - at both IP (datagram) and MAC layer (frame) assume A knows B’s IP address assume A knows IP address of first hop router, R (how?) assume A knows R’s MAC address (how?) ...
... Addressing: routing to another LAN walkthrough: send datagram from A to B via R focus on addressing - at both IP (datagram) and MAC layer (frame) assume A knows B’s IP address assume A knows IP address of first hop router, R (how?) assume A knows R’s MAC address (how?) ...
gsc11_gtsc4_30 NGN E2E QoS - Docbox
... • TR-30.3 recently completed ANSI/TIA-921, “Network Model for Evaluating Multimedia Transmission Performance Over Internet Protocol” – This new standard is in the publication cycle – Undergone over two years of work to ensure that the model accurately depicts how IP networks behave • Model’s charact ...
... • TR-30.3 recently completed ANSI/TIA-921, “Network Model for Evaluating Multimedia Transmission Performance Over Internet Protocol” – This new standard is in the publication cycle – Undergone over two years of work to ensure that the model accurately depicts how IP networks behave • Model’s charact ...
Introduction to Cisco Networking Technologies
... The Transport layer provides transparent transfer of data between end users, providing reliable data transfer services to the upper layers. The transport layer controls the reliability of a given link through flow control, segmentation/desegmentation, and error control. Some protocols are state and ...
... The Transport layer provides transparent transfer of data between end users, providing reliable data transfer services to the upper layers. The transport layer controls the reliability of a given link through flow control, segmentation/desegmentation, and error control. Some protocols are state and ...
catalogs - Avara Technologies
... This enables service providers to capitalize on the revenue growth opportunities presented by the boom in Ethernet data traffic whilst maintaining the significant revenues and profit generated from existing PDH (E1/T1) services. The products are used in the access part of the network to groom TDM an ...
... This enables service providers to capitalize on the revenue growth opportunities presented by the boom in Ethernet data traffic whilst maintaining the significant revenues and profit generated from existing PDH (E1/T1) services. The products are used in the access part of the network to groom TDM an ...
Local Area Networks
... • Network cables are terminated with RJ45 connectors (they look similar to telephone cables, but connectors are a bit larger) – Category 5 or 6 UTP recommended • Maximum length of about 100 meters (328 feet) ...
... • Network cables are terminated with RJ45 connectors (they look similar to telephone cables, but connectors are a bit larger) – Category 5 or 6 UTP recommended • Maximum length of about 100 meters (328 feet) ...
A41040105
... information is made by the sequence number. Larger sequence shows the newer information of routing. In this process route request and route reply are send along with the sequence number. Whenever the node receives the route request from the source node it also updates in its routing table. It makes ...
... information is made by the sequence number. Larger sequence shows the newer information of routing. In this process route request and route reply are send along with the sequence number. Whenever the node receives the route request from the source node it also updates in its routing table. It makes ...
OSPF
... areas do not overlap 2-level hierarchy; each area must attach directly to backbone its topology and details are not visible outside the area each area runs a copy of the link-state protocol smaller link-state databases ...
... areas do not overlap 2-level hierarchy; each area must attach directly to backbone its topology and details are not visible outside the area each area runs a copy of the link-state protocol smaller link-state databases ...
lec 3 - handout3
... characterize the traffic it will send through the network • R-spec: defines the QoS being requested by receiver (e.g., rate r) • T-spec: defines the traffic characteristics of sender (e.g., leaky bucket with rate r and buffer size b). • A signaling protocol is needed to carry the R-spec and Tspec to ...
... characterize the traffic it will send through the network • R-spec: defines the QoS being requested by receiver (e.g., rate r) • T-spec: defines the traffic characteristics of sender (e.g., leaky bucket with rate r and buffer size b). • A signaling protocol is needed to carry the R-spec and Tspec to ...
Adaptive Coding and Packet Rates for TCP-Friendly VoIP Flows
... TCP friendly manner in order to optimize the quality of VoIP flows. The conversational call quality of VoIP flows depends on the transmission delay and on the speech quality [2]. For example, a higher coding rate usually gives a better speech quality. On the other hand, if the packet rate is set low ...
... TCP friendly manner in order to optimize the quality of VoIP flows. The conversational call quality of VoIP flows depends on the transmission delay and on the speech quality [2]. For example, a higher coding rate usually gives a better speech quality. On the other hand, if the packet rate is set low ...
WB-FastNets2
... each connection, there is an associated QOS, implied or stated. These are qualities such as: 1. peak cell rate, and peak duration 2. average cell rate 3. allowable loss rate ...
... each connection, there is an associated QOS, implied or stated. These are qualities such as: 1. peak cell rate, and peak duration 2. average cell rate 3. allowable loss rate ...