Planning Routing Implementations with OSPF as Scalable Routing
... A two-tier hierarchical network structure is used by OSPF, in which the network is divided into areas. This area structure is used to separate the LSDB into more manageable pieces. Adjacencies are built by OSPF routers using the Hello protocol. LSUs are sent over these logical adjacencies, in or ...
... A two-tier hierarchical network structure is used by OSPF, in which the network is divided into areas. This area structure is used to separate the LSDB into more manageable pieces. Adjacencies are built by OSPF routers using the Hello protocol. LSUs are sent over these logical adjacencies, in or ...
Chapter 4 - std-svn-uppa
... E = set of links ={ (u,v), (u,x), (v,x), (v,w), (x,w), (x,y), (w,y), (w,z), (y,z) } Remark: Graph abstraction is useful in other network contexts Example: P2P, where N is set of peers and E is set of TCP connections Network Layer ...
... E = set of links ={ (u,v), (u,x), (v,x), (v,w), (x,w), (x,y), (w,y), (w,z), (y,z) } Remark: Graph abstraction is useful in other network contexts Example: P2P, where N is set of peers and E is set of TCP connections Network Layer ...
Network Measurements
... agreement, and verifying it is being met • Choosing routes when more than one is available • Setting expectations: – Deciding which links need upgrading – Deciding where to place collaboration components such as a regional computing center, software development – How well will an application work (e ...
... agreement, and verifying it is being met • Choosing routes when more than one is available • Setting expectations: – Deciding which links need upgrading – Deciding where to place collaboration components such as a regional computing center, software development – How well will an application work (e ...
4th Edition: Chapter 1
... 640,000 bits from host A to host B over a circuit-switched network? All links are 1.536 Mbps Each link uses TDM with 24 slots/sec 500 msec to establish end-to-end circuit ...
... 640,000 bits from host A to host B over a circuit-switched network? All links are 1.536 Mbps Each link uses TDM with 24 slots/sec 500 msec to establish end-to-end circuit ...
Queuing Disciplines
... packet waits to be transmitted. Examples of the common queuing disciplines are first-infirst-out (FIFO) queuing, priority queuing (PQ), and weighted-fair queuing (WFQ). The idea of FIFO queuing is that the first packet that arrives at a router is the first packet to be transmitted. Given that the am ...
... packet waits to be transmitted. Examples of the common queuing disciplines are first-infirst-out (FIFO) queuing, priority queuing (PQ), and weighted-fair queuing (WFQ). The idea of FIFO queuing is that the first packet that arrives at a router is the first packet to be transmitted. Given that the am ...
Simulation-Assisted Routing Protocol Design (SARPD)
... requires that the link layer allow any IP device to send a packet directly to any other IP device on that subnet [1]. However, limited radio range, combined with mobility of nodes, means wireless networks do not always comply with the IP Subnet model. In fact, LOS/BLOS radios often require dynamic r ...
... requires that the link layer allow any IP device to send a packet directly to any other IP device on that subnet [1]. However, limited radio range, combined with mobility of nodes, means wireless networks do not always comply with the IP Subnet model. In fact, LOS/BLOS radios often require dynamic r ...
TSIN02 Internetworking
... households. Instead you plan to set up a network layer multicast service. To better understand the problem, you model the distribution network as a tree, where each node is connecting to 2 nodes at each level, and where there are 28 levels. The households are all on level 28, and all nodes on this l ...
... households. Instead you plan to set up a network layer multicast service. To better understand the problem, you model the distribution network as a tree, where each node is connecting to 2 nodes at each level, and where there are 28 levels. The households are all on level 28, and all nodes on this l ...
DVoIP: DYNAMIC VOICE-OVER-IP TRANSFORMATIONS FOR QUALITY OF SERVICE IN
... bandwidth adaptation through two actuators: the audio transcoder and the frame aggregator. Audio transcoding is translation between audio codecs, which allows the system to convert traffic being sent from the VoIP application using a high-bandwidth codec into a lower bandwidth codec suitable for tra ...
... bandwidth adaptation through two actuators: the audio transcoder and the frame aggregator. Audio transcoding is translation between audio codecs, which allows the system to convert traffic being sent from the VoIP application using a high-bandwidth codec into a lower bandwidth codec suitable for tra ...
Wanted: Systems abstractions for SDN
... set up a single traffic shaping queue with tc. Therefore NativeClick elements have roughly the same processing granularity as those of Click. To start an element, NativeClick runs the appropriate script inside a container with several command-line arguments: the start flag, a set of input and output ...
... set up a single traffic shaping queue with tc. Therefore NativeClick elements have roughly the same processing granularity as those of Click. To start an element, NativeClick runs the appropriate script inside a container with several command-line arguments: the start flag, a set of input and output ...
Overlay Network Monitoring and its Applications
... When a Small Portion of End Hosts on Overlay • Internet has moderate hierarchical structure [TGJ+02] – If a pure hierarchical structure (tree): k = O(n) – If no hierarchy at all (worst case, clique): k = O(n2) – Internet should fall in between … ...
... When a Small Portion of End Hosts on Overlay • Internet has moderate hierarchical structure [TGJ+02] – If a pure hierarchical structure (tree): k = O(n) – If no hierarchy at all (worst case, clique): k = O(n2) – Internet should fall in between … ...
Chapter_5_Sec4 - Department of Computer Science
... Link layer, LANs: outline 5.1 introduction, services 5.5 link virtualization: ...
... Link layer, LANs: outline 5.1 introduction, services 5.5 link virtualization: ...
投影片 1
... in a given voice call by multiplexing voice data from other calls are more bandwidth-efficient than circuit-switched solutions In wireless networks, where bandwidth is more constrained DCF can not support service discipline of integrated multimedia traffic since it does not include any priority and ...
... in a given voice call by multiplexing voice data from other calls are more bandwidth-efficient than circuit-switched solutions In wireless networks, where bandwidth is more constrained DCF can not support service discipline of integrated multimedia traffic since it does not include any priority and ...
COMET—COMBO Ethernet Tester
... Nowadays, commonly used testers are very expansive and they are not flexible enough. e currently used Ethernet testers, for example [5], are single-purpose devices. When an Ethernet tester is required, administrator has to transport it and connect it into the network infrastructure. Usage of COMBOv2 ...
... Nowadays, commonly used testers are very expansive and they are not flexible enough. e currently used Ethernet testers, for example [5], are single-purpose devices. When an Ethernet tester is required, administrator has to transport it and connect it into the network infrastructure. Usage of COMBOv2 ...
IP: Addresses and Forwarding
... Find the min-distance path to each destination from that intersection (just like AAA-style) Then, point their next-hop in the right direction Called “link-state routing”: because map is maintained in terms of link-states Provide a marker to every destination along with the currently best-known ...
... Find the min-distance path to each destination from that intersection (just like AAA-style) Then, point their next-hop in the right direction Called “link-state routing”: because map is maintained in terms of link-states Provide a marker to every destination along with the currently best-known ...
Troubleshooting Ethernet and Fragmentation Issues
... The Path MTU Discovery system (PMTU) was established to determine the smallest allowable MTU of any link on the current path between two hosts. The MTU size for the path between two hosts can vary since the routing may change over time. The path is not necessarily symmetric and can even vary for dif ...
... The Path MTU Discovery system (PMTU) was established to determine the smallest allowable MTU of any link on the current path between two hosts. The MTU size for the path between two hosts can vary since the routing may change over time. The path is not necessarily symmetric and can even vary for dif ...
network layer - WordPress.com
... duplications. It relieves the higher layer protocols from any concern with the transfer of data between them and their peers. The size and complexity of a transport protocol depends on the type of service it can get from the network layer. For a reliable network layer with virtual circuit capability ...
... duplications. It relieves the higher layer protocols from any concern with the transfer of data between them and their peers. The size and complexity of a transport protocol depends on the type of service it can get from the network layer. For a reliable network layer with virtual circuit capability ...
slides - network systems lab @ sfu
... Flow Label: identify datagrams in same “flow.” (concept of“flow” not well defined). Next header: identify upper layer protocol for data ...
... Flow Label: identify datagrams in same “flow.” (concept of“flow” not well defined). Next header: identify upper layer protocol for data ...
3rd Edition: Chapter 4
... Flow Label: identify datagrams in same “flow.” (concept of“flow” not well defined). Next header: identify upper layer protocol for data ...
... Flow Label: identify datagrams in same “flow.” (concept of“flow” not well defined). Next header: identify upper layer protocol for data ...
Part III Network Layer
... Telephones are useful because any telephone can reach any other telephone Universal service among computers greatly increases the usefulness of each computer Providing universal service requires interconnecting networks employing different technologies ...
... Telephones are useful because any telephone can reach any other telephone Universal service among computers greatly increases the usefulness of each computer Providing universal service requires interconnecting networks employing different technologies ...
Design of an AAPN
... Agile All-Photonic Networks (AAPN) is a Canadian research network (funded by NSERC and 6 industrial partners) exploring the use of very fast photonic switching for building optical networks that allow the sharing (multiplexing) of a wavelength between different information flows. The aim is to bring ...
... Agile All-Photonic Networks (AAPN) is a Canadian research network (funded by NSERC and 6 industrial partners) exploring the use of very fast photonic switching for building optical networks that allow the sharing (multiplexing) of a wavelength between different information flows. The aim is to bring ...
Routing protocols
... The router command starts a routing process. The network command is required because it enables the routing process to determine which interfaces participate in the sending and receiving of routing updates. An example of a routing configuration is: GAD(config)#router rip GAD(config-router)#network 1 ...
... The router command starts a routing process. The network command is required because it enables the routing process to determine which interfaces participate in the sending and receiving of routing updates. An example of a routing configuration is: GAD(config)#router rip GAD(config-router)#network 1 ...