A Foray into MPLS-TE
... • All routers need to be aware of available bandwidth of all interfaces of all other routers • Beefier hardware is needed (multiplier of drawback of tunneling in general) ...
... • All routers need to be aware of available bandwidth of all interfaces of all other routers • Beefier hardware is needed (multiplier of drawback of tunneling in general) ...
No Slide Title
... in a fair, unbiased, audited and verifiable basis • Vertical stovepipe replaced by horizontally organized “multi-providers,” open to increased competition and more efficient allocation of resources ...
... in a fair, unbiased, audited and verifiable basis • Vertical stovepipe replaced by horizontally organized “multi-providers,” open to increased competition and more efficient allocation of resources ...
Framework Document Presentation
... • Selected representative end user services as “use cases” to test and validate NGN requirements. Identified the network service enablers that would be required for application. • Interactive voice • Content-based services / video • Multi-media conferencing • Content sharing • Interactive gaming • S ...
... • Selected representative end user services as “use cases” to test and validate NGN requirements. Identified the network service enablers that would be required for application. • Interactive voice • Content-based services / video • Multi-media conferencing • Content sharing • Interactive gaming • S ...
What Advantages Does an Agile Network Bring (Issue
... 1 Challenges to Enterprise Networks Brought by Social Media and Multi-Service Social media is a challenge to network capacity. Different services place different requirements on network quality. For example, the packet loss ratio of voice service should be smaller than 10-2 and that of High Definiti ...
... 1 Challenges to Enterprise Networks Brought by Social Media and Multi-Service Social media is a challenge to network capacity. Different services place different requirements on network quality. For example, the packet loss ratio of voice service should be smaller than 10-2 and that of High Definiti ...
The Network Management Problem
... Layer 2 and layer 3 traffic engineering Layer 2 and layer 3 QoS Network management Convergence of legacy technologies into IP. Many service providers have built large IP networks in anticipation of forecasted massive demand. These IP networks are, in many cases, not profitable, so service providers ...
... Layer 2 and layer 3 traffic engineering Layer 2 and layer 3 QoS Network management Convergence of legacy technologies into IP. Many service providers have built large IP networks in anticipation of forecasted massive demand. These IP networks are, in many cases, not profitable, so service providers ...
Network Planning & Engineering
... monitoring process – three typical approaches » traffic rerouting » resource reallocation » sizing (minimal-cost capacity augmentation to satisfy the current demand) ...
... monitoring process – three typical approaches » traffic rerouting » resource reallocation » sizing (minimal-cost capacity augmentation to satisfy the current demand) ...
Integrated Mobility and Resource Management Mechanism for FMC
... networks (e.g. xDSL, FTTH) cannot be provided in the wireless access domain based on e.g. GPRS, UMTS or HSxPA. Available QoS resources differ in tens of times also among various wireless access techniques. New mechanisms must be developed to observe QoS resources available for multimedia application ...
... networks (e.g. xDSL, FTTH) cannot be provided in the wireless access domain based on e.g. GPRS, UMTS or HSxPA. Available QoS resources differ in tens of times also among various wireless access techniques. New mechanisms must be developed to observe QoS resources available for multimedia application ...
Chapter 23. Congestion Control and Quality of service
... Differentiated Services is a class-based QoS model designed for IP. Diffserv handles the shortcomings of IntServ Main differences between Diffserv and Intserv – Main processing is moved from the core to the edge (scalability) – The per-flow is changed to per-class flow service (service-type limitati ...
... Differentiated Services is a class-based QoS model designed for IP. Diffserv handles the shortcomings of IntServ Main differences between Diffserv and Intserv – Main processing is moved from the core to the edge (scalability) – The per-flow is changed to per-class flow service (service-type limitati ...
ATM Traffic Management
... of an ATM network • EFCI – feedback-based flow control • EPD and TPD – selective cell discarding Reactive Congestion Control • Information propagates from ATM switches to ATM sources • Credit based or rate based • Rate based – uses bits in ATM header to inform the source about the networks condition ...
... of an ATM network • EFCI – feedback-based flow control • EPD and TPD – selective cell discarding Reactive Congestion Control • Information propagates from ATM switches to ATM sources • Credit based or rate based • Rate based – uses bits in ATM header to inform the source about the networks condition ...
ISCW642-825 - GogoTraining
... access in the form of cable Internet. Cable modems also utilize unused bandwidth on a cable television network. Cable modem services require access to two protocols: TFTP (Trivial File Transfer Protocol) and DHCP (Dynamic Host Configuration Protocol). ...
... access in the form of cable Internet. Cable modems also utilize unused bandwidth on a cable television network. Cable modem services require access to two protocols: TFTP (Trivial File Transfer Protocol) and DHCP (Dynamic Host Configuration Protocol). ...
presentation
... Differentiated Services At the Ingress/Egress nodes Classify packets via packet inspection Meter the temporal state of the packet (i.e., rate) Mark the packets’ Diffserv Code Point (DSCP) according to its class Shape the packets (drop or delay) At other nodes, Per-Hop Behavior (PHB) is appli ...
... Differentiated Services At the Ingress/Egress nodes Classify packets via packet inspection Meter the temporal state of the packet (i.e., rate) Mark the packets’ Diffserv Code Point (DSCP) according to its class Shape the packets (drop or delay) At other nodes, Per-Hop Behavior (PHB) is appli ...
non-line-of
... Future trend for wireless communications Future wireless applications create insatiability demand for “high data rate” and “high link quality” wireless access Spectrum has become a scarce and expensive resource bandwidth is very limited Regulation, device and system capacity concerns transmit power ...
... Future trend for wireless communications Future wireless applications create insatiability demand for “high data rate” and “high link quality” wireless access Spectrum has become a scarce and expensive resource bandwidth is very limited Regulation, device and system capacity concerns transmit power ...
Basic Concepts
... – Circuit capacity is reserved during duration of each call – At each switch Reserved – On each trunk line Capacity Reserved Capacity Circuit ...
... – Circuit capacity is reserved during duration of each call – At each switch Reserved – On each trunk line Capacity Reserved Capacity Circuit ...
Planning of Multiservice IP Networks
... • single link dimensioning with multirate Erlang-B (stream) and M/G/R-PS (elastic, ideal TCP behavior) model • dimensioning for tree-type access networks • separate dimensioning for elastic / stream traffic ...
... • single link dimensioning with multirate Erlang-B (stream) and M/G/R-PS (elastic, ideal TCP behavior) model • dimensioning for tree-type access networks • separate dimensioning for elastic / stream traffic ...
Multimedia Streaming
... – The data must arrive quickly enough – … otherwise the client cannot keep playing ...
... – The data must arrive quickly enough – … otherwise the client cannot keep playing ...
Telecommunication networks
... several similar definitions of the term "Quality of service" are formulated: 1. Totality of characteristics of a telecommunications service that bear on its ability to satisfy stated and implied of the user of the service (E.800). 2. The collective effect of service performance which determine the d ...
... several similar definitions of the term "Quality of service" are formulated: 1. Totality of characteristics of a telecommunications service that bear on its ability to satisfy stated and implied of the user of the service (E.800). 2. The collective effect of service performance which determine the d ...
Networking
... IP Routing as Scalable Sharing of Bandwidth • The Internet is a collection of links connected by routers • Internet Protocol (IP) datagrams flow from sender to reciever along some path of links • The choice of paths is made by routers according to topological considerations ...
... IP Routing as Scalable Sharing of Bandwidth • The Internet is a collection of links connected by routers • Internet Protocol (IP) datagrams flow from sender to reciever along some path of links • The choice of paths is made by routers according to topological considerations ...
MultimediaNetworking
... Guaranteed service rather than best effort Routers keeping state about the traffic A variety of new protocols and mechanisms Reserving resources along a path Identifying paths with sufficient resources Link scheduling and buffer management Packet marking with the Type-of-Service bits ...
... Guaranteed service rather than best effort Routers keeping state about the traffic A variety of new protocols and mechanisms Reserving resources along a path Identifying paths with sufficient resources Link scheduling and buffer management Packet marking with the Type-of-Service bits ...
Will the Internet be reliably bad enough to preserve PPVPNs?
... “This base technology (label swapping) is expected to improve the price/performance of network layer routing, improve the scalability of the network layer, and provide greater flexibility in the delivery of (new) routing services (by allowing new routing services to be added without a change to the ...
... “This base technology (label swapping) is expected to improve the price/performance of network layer routing, improve the scalability of the network layer, and provide greater flexibility in the delivery of (new) routing services (by allowing new routing services to be added without a change to the ...
Week 5 Link Layer & Local Area Networking
... between networks, but when they encounter a data unit that uses a protocol with which they are unfamiliar, they work like a bridge and forward the data to the next segment by using a physical address. You can use Brouters for networks on which there is mixed-protocol traffic and for networks that us ...
... between networks, but when they encounter a data unit that uses a protocol with which they are unfamiliar, they work like a bridge and forward the data to the next segment by using a physical address. You can use Brouters for networks on which there is mixed-protocol traffic and for networks that us ...
IntServ, DiffServ, RSVP
... • The intent is that it will be used to implement services that differ relative to each other (e.g., gold, silver,…). • Within each class, there are three drop priorities, which affect which packets will get dropped first if there is congestion. • Lots of studies on how these classes and drop priori ...
... • The intent is that it will be used to implement services that differ relative to each other (e.g., gold, silver,…). • Within each class, there are three drop priorities, which affect which packets will get dropped first if there is congestion. • Lots of studies on how these classes and drop priori ...
P.702 - How it works
... Signalling not extended to the user, so no bandwidth on demand facility Focus on priority access to finite resource - overbooking problems not resolved Do not consider ITU / ATM forum standards, thus ill suited to broader telco environments • Until MPLS is ratified by the IETF, they are proprietary ...
... Signalling not extended to the user, so no bandwidth on demand facility Focus on priority access to finite resource - overbooking problems not resolved Do not consider ITU / ATM forum standards, thus ill suited to broader telco environments • Until MPLS is ratified by the IETF, they are proprietary ...
End to End and Innovation - Labs
... – Its still an overlay across a basic network – Its still defined and supported at the “ends” – Its no longer a two party model - its multi-party peering – Its no longer a single behavior - it’s a combination of context discovery and adaptation – Its no longer a single vertical stack - it’s a mesh o ...
... – Its still an overlay across a basic network – Its still defined and supported at the “ends” – Its no longer a two party model - its multi-party peering – Its no longer a single behavior - it’s a combination of context discovery and adaptation – Its no longer a single vertical stack - it’s a mesh o ...