Increase Network Capacity and Performance Gain Visibility and
... • Improve user satisfaction and QoE • Offer a wide range of value added services ...
... • Improve user satisfaction and QoE • Offer a wide range of value added services ...
Quality of Service on JANET
... Guarantees – poor – Clash of flows in some output interface is allowed (flows’ routes are not under control) – Reasonable hierarchical design of a network decreases the clash probability ...
... Guarantees – poor – Clash of flows in some output interface is allowed (flows’ routes are not under control) – Reasonable hierarchical design of a network decreases the clash probability ...
part 5
... can grab all the bandwidth z Non-TCP connections (voice) can grab all the bandwidth z ...
... can grab all the bandwidth z Non-TCP connections (voice) can grab all the bandwidth z ...
![[slides] Wireless networks](http://s1.studyres.com/store/data/008740196_1-40942f464a60beb9c165ab23a8eba523-300x300.png)
[slides] Wireless networks
... BS conveys the signal information to its parent MSC (mobile switching center) which selects the most suitable next BS for the mobile station Both the selected BS and the mobile station are informed when new BS assigns an unoccupied channel to the mobile station Case 2: mobile station itself select ...
... BS conveys the signal information to its parent MSC (mobile switching center) which selects the most suitable next BS for the mobile station Both the selected BS and the mobile station are informed when new BS assigns an unoccupied channel to the mobile station Case 2: mobile station itself select ...
ICNP - Columbia University
... P2P systems Application-layer routing and overlays, multicast, discovery, … The categorical imperative for network design: “act only in accordance with that maxim through which you can at the same time will that it become a universal law.” ...
... P2P systems Application-layer routing and overlays, multicast, discovery, … The categorical imperative for network design: “act only in accordance with that maxim through which you can at the same time will that it become a universal law.” ...
Ensuring QoS in Your VoIP Development
... where speech quality is computed by injecting a speech like signal at one end and analysing the degraded signal at other end of the network. ...
... where speech quality is computed by injecting a speech like signal at one end and analysing the degraded signal at other end of the network. ...
Route Control
... • The routing table contains a list of known routers, the addresses they can reach, and a cost metric associated with the path to each router so that the best available route is chosen. ...
... • The routing table contains a list of known routers, the addresses they can reach, and a cost metric associated with the path to each router so that the best available route is chosen. ...
Optimizing Your Network Design
... low delay, and controlled jitter required by many critical business applications • Multimedia and other applications that are sensitive to network congestion and delay can inform routers in the network of their QoS requirements using both in-band and out of band methods ...
... low delay, and controlled jitter required by many critical business applications • Multimedia and other applications that are sensitive to network congestion and delay can inform routers in the network of their QoS requirements using both in-band and out of band methods ...
44_ExploringNetworkProperties
... Define client and protocol and explain the purpose of each. Explain the purpose of the NetBEUI, IPX/SPX, and TCP/IP protocols. Change the client, services, and protocol of a local area network connection in a Windows XP Pro computer. ...
... Define client and protocol and explain the purpose of each. Explain the purpose of the NetBEUI, IPX/SPX, and TCP/IP protocols. Change the client, services, and protocol of a local area network connection in a Windows XP Pro computer. ...
Performance Evaluation of the IEEE 802.16 MAC for QoS Support
... Manage the resources of the air-link efficiently and provide Quality of Service (QoS) differentiation for different connections/streams Supporting Point to Multipoint and Mesh network models Performing Link Adaption & ARQ functions Transmission Scheduling Admission Control Link Initialization Fragme ...
... Manage the resources of the air-link efficiently and provide Quality of Service (QoS) differentiation for different connections/streams Supporting Point to Multipoint and Mesh network models Performing Link Adaption & ARQ functions Transmission Scheduling Admission Control Link Initialization Fragme ...
Internet Architecture and Assumptions
... • No state established ahead of time (helps fate sharing) • Basic building block – must build things like TCP on top • Pretty much implies statistical multiplexing • Alternatives: • Circuit Switching: Signaling protocol sets up entire path out-ofband. (cf. the phone network) • Virtual Circuits: Hybr ...
... • No state established ahead of time (helps fate sharing) • Basic building block – must build things like TCP on top • Pretty much implies statistical multiplexing • Alternatives: • Circuit Switching: Signaling protocol sets up entire path out-ofband. (cf. the phone network) • Virtual Circuits: Hybr ...
Protocols and Quality of Service
... not support it. RSVP makes resource reservations for both unicast and manyto-many multicast applications, adapting dynamically to changing group membership as well as to changing routes RSVP is receiver-oriented, i.e., the receiver of a data flow initiates and maintains the resource reservation ...
... not support it. RSVP makes resource reservations for both unicast and manyto-many multicast applications, adapting dynamically to changing group membership as well as to changing routes RSVP is receiver-oriented, i.e., the receiver of a data flow initiates and maintains the resource reservation ...
Quality of Service in IP Networks
... (packets) over an IP-based network in terms of: Latency - delay that an application can tolerate in delivering a packet of data Jitter - variation in latency Loss - percentage of lost data Throughput - amount of data carried Availability - network uptime ...
... (packets) over an IP-based network in terms of: Latency - delay that an application can tolerate in delivering a packet of data Jitter - variation in latency Loss - percentage of lost data Throughput - amount of data carried Availability - network uptime ...
lect25 - Computer and Information Sciences
... traffic that is time-sensitive and requires on-time delivery For example, consider the case of realtime audio based applications For such applications, users did not get a consistent performance from the best effort network. ...
... traffic that is time-sensitive and requires on-time delivery For example, consider the case of realtime audio based applications For such applications, users did not get a consistent performance from the best effort network. ...
Program Guide
... Are there issues with application, VoIP, and video performance? Yes Are there network issues in the WAN and campus? Yes ...
... Are there issues with application, VoIP, and video performance? Yes Are there network issues in the WAN and campus? Yes ...
Chapter 3. QoS Mechanisms
... protocol type of service – IPv4 and IPv6 standard defined a prioritization field in the IP header RFC 1349 defined a TOS field in IPv4 header. The type of service field consists of a 3-bit precedence subfield, a 4-bit TOS subfield, and the final bit which is unused and is set to be 0. The 4-bit TOS ...
... protocol type of service – IPv4 and IPv6 standard defined a prioritization field in the IP header RFC 1349 defined a TOS field in IPv4 header. The type of service field consists of a 3-bit precedence subfield, a 4-bit TOS subfield, and the final bit which is unused and is set to be 0. The 4-bit TOS ...
wacra - Internet2
... Bandwidth Scalability QoS Haptics & visual fidelity Interoperability Risk analysis/liability Operationally - contingency plans when… ...
... Bandwidth Scalability QoS Haptics & visual fidelity Interoperability Risk analysis/liability Operationally - contingency plans when… ...
Home Networking activities in TTC
... -General• Decision of the standardization about Home Networking (HN) – Decision of architecture: The revision proposal to ITU SG9 – Interconnection: Aim at the standard establishment about a required function and functional layout, such as a transmission system, QoS, and GW control function. – Decis ...
... -General• Decision of the standardization about Home Networking (HN) – Decision of architecture: The revision proposal to ITU SG9 – Interconnection: Aim at the standard establishment about a required function and functional layout, such as a transmission system, QoS, and GW control function. – Decis ...
QoS and Video Delivery
... • Network congestion can be caused by lack of network resources or by uneven distribution of traffic – In the first case, all routers and links are overloaded and the only solution is to provide more resources by upgrading the infrastructure – In the second case, uneven traffic distribution can be c ...
... • Network congestion can be caused by lack of network resources or by uneven distribution of traffic – In the first case, all routers and links are overloaded and the only solution is to provide more resources by upgrading the infrastructure – In the second case, uneven traffic distribution can be c ...
Voice over IP
... The Real-time Transport (RTP) Protocol provides end-to-end network transport functions suitable for applications transmitting real-time data such as audio, video or simulation data, over multicast or unicast network services. RTP does not address resource reservation and does not guarantee quality ...
... The Real-time Transport (RTP) Protocol provides end-to-end network transport functions suitable for applications transmitting real-time data such as audio, video or simulation data, over multicast or unicast network services. RTP does not address resource reservation and does not guarantee quality ...
QoS Protocols & Architectures
... Minimizes delay and jitter Provides the highest QoS Traffic that exceeds the traffic profile is discarded ...
... Minimizes delay and jitter Provides the highest QoS Traffic that exceeds the traffic profile is discarded ...
labview_ni_networks
... • Complex interaction of – Network protocols (routing, congestion control) – Applications (Web, email, streaming video/voice) • To improve performance – Need to understand Internet’s working – Need measurements and analysis tools ...
... • Complex interaction of – Network protocols (routing, congestion control) – Applications (Web, email, streaming video/voice) • To improve performance – Need to understand Internet’s working – Need measurements and analysis tools ...
CSC 336 Data Communications and Networking Congestion
... – No special treatment for high priority flow packets – Large packet can hold up smaller packets – Greedy connection can crowd out less greedy connection ...
... – No special treatment for high priority flow packets – Large packet can hold up smaller packets – Greedy connection can crowd out less greedy connection ...
