Media: Voice and Video in your SIP Environment
... Video Formats (IP vs. 3G) • High resolution for IP networks – More bandwidth available – SIP Video Phones are generally CIF size (352 × 288 pixels) – Recommended: CIF, 15 or 30fps, up to 384kbps ...
... Video Formats (IP vs. 3G) • High resolution for IP networks – More bandwidth available – SIP Video Phones are generally CIF size (352 × 288 pixels) – Recommended: CIF, 15 or 30fps, up to 384kbps ...
Slide 1
... Introduction • Wireless: Application-Driven or Generic? • Basic observation: No universally best protocols • Using features of application yields better solutions ...
... Introduction • Wireless: Application-Driven or Generic? • Basic observation: No universally best protocols • Using features of application yields better solutions ...
Repeaters and Hubs
... o Link-state and distance-vector characteristics o EIGRP (Enhanced Interior Gateway Routing Protocol) • Most popular • Cisco network routers only o EIGRP benefits • Fast convergence time, low network overhead • Easier to configure and less CPU-intensive than OSPF • Supports multiple protocols ...
... o Link-state and distance-vector characteristics o EIGRP (Enhanced Interior Gateway Routing Protocol) • Most popular • Cisco network routers only o EIGRP benefits • Fast convergence time, low network overhead • Easier to configure and less CPU-intensive than OSPF • Supports multiple protocols ...
1st Lecture
... Each packet is passed through the network from node to node along some path (Routing) At each node the entire packet is received, stored briefly, and then forwarded to the next node (Store-and-Forward Networks) Typically no capacity is allocated for packets Spring 2004 ...
... Each packet is passed through the network from node to node along some path (Routing) At each node the entire packet is received, stored briefly, and then forwarded to the next node (Store-and-Forward Networks) Typically no capacity is allocated for packets Spring 2004 ...
投影片 1 - PEARL
... The third major function of the adaptation layer is routing. The border nodes of the WSN should be able to route IPv6 packets into the WSN nodes from outside and route inside packets to outside IP network. Different routing protocols of adaptation layer are shown in table. There are other func ...
... The third major function of the adaptation layer is routing. The border nodes of the WSN should be able to route IPv6 packets into the WSN nodes from outside and route inside packets to outside IP network. Different routing protocols of adaptation layer are shown in table. There are other func ...
Bridges
... PPP (Point to Point Protocol) is very popular: used in dial up connection between residential Host and ISP; on SONET/SDH connections, etc PPP is extremely simple (the simplest in the Data Link protocol family) and very streamlined ...
... PPP (Point to Point Protocol) is very popular: used in dial up connection between residential Host and ISP; on SONET/SDH connections, etc PPP is extremely simple (the simplest in the Data Link protocol family) and very streamlined ...
Network Layer
... For different network Protocols at data link layer we have different formats and sizes of frames. Now we also know that the Packet from network layer called datagram (Header + data) act completely as data for the data link Frame. ...
... For different network Protocols at data link layer we have different formats and sizes of frames. Now we also know that the Packet from network layer called datagram (Header + data) act completely as data for the data link Frame. ...
WiSense Seminar #49 M. Ebada, Multipath Routing for Wireless
... • Adjustments made to Multipath Finding Protocol and Traffic Splitting Protocol resulted in significant savings in network power • Hybrid Routing Protocol combines the advantages of Source Routing Protocol and Diffusion Routing Protocol • The cut off value used in Hybrid Routing Protocol provides a ...
... • Adjustments made to Multipath Finding Protocol and Traffic Splitting Protocol resulted in significant savings in network power • Hybrid Routing Protocol combines the advantages of Source Routing Protocol and Diffusion Routing Protocol • The cut off value used in Hybrid Routing Protocol provides a ...
Lecture 10
... • Called the customer provider view -- we have enduser sites, regional service provider networks etc. •Each unit is independent as far as administration goes -- what routing to use, how to assign metrics etc. Each unit is called an Autonomous System or AS. ...
... • Called the customer provider view -- we have enduser sites, regional service provider networks etc. •Each unit is independent as far as administration goes -- what routing to use, how to assign metrics etc. Each unit is called an Autonomous System or AS. ...
Introduction (Pres.)
... mesh of links and packet switches Forwards packets over multiple links from source to destination ...
... mesh of links and packet switches Forwards packets over multiple links from source to destination ...
Router architectures
... (shared bus) All IP forwarding functions are performed in the central processor. Routing cache at processor can accelerate the routing table lookup. ...
... (shared bus) All IP forwarding functions are performed in the central processor. Routing cache at processor can accelerate the routing table lookup. ...
ppt
... • Control plane: Filling the forwarding tables consistently in all switches • Data plane: Switching packets from incoming to outgoing link by looking up the table ...
... • Control plane: Filling the forwarding tables consistently in all switches • Data plane: Switching packets from incoming to outgoing link by looking up the table ...
Chapter 2
... passing a packet from one layer to another required moving it from one buffer of the computer’s memory to another, a time consuming process. Refer to Fig. 3.1. In order to achieve its desired goal, frame relay overcomes this overhead. The layer three switching is moved to layer two, error and flow c ...
... passing a packet from one layer to another required moving it from one buffer of the computer’s memory to another, a time consuming process. Refer to Fig. 3.1. In order to achieve its desired goal, frame relay overcomes this overhead. The layer three switching is moved to layer two, error and flow c ...
Treating Software-Defined Networks Like Disk Arrays.
... The basis for multipath networking is conceptually simple. Multipath networking can be seen as another form of parallelism, with the objective of improving network performance subject to some underlying constraints. These underlying constraints are highly varied, and may not necessarily be bound by ...
... The basis for multipath networking is conceptually simple. Multipath networking can be seen as another form of parallelism, with the objective of improving network performance subject to some underlying constraints. These underlying constraints are highly varied, and may not necessarily be bound by ...
Document
... No standard approach today that addresses the unique needs of most remote monitoring and control applications • Enables the broad-based deployment of reliable wireless networks with low-complexity, low-cost solutions. • Provides the ability to run for years on inexpensive primary batteries for a typ ...
... No standard approach today that addresses the unique needs of most remote monitoring and control applications • Enables the broad-based deployment of reliable wireless networks with low-complexity, low-cost solutions. • Provides the ability to run for years on inexpensive primary batteries for a typ ...
Chapter 7 Packet-Switching Networks
... given destination Routing table has an entry for each destination specifying output port that leads to next hop Size of table becomes impractical for very large number of destinations ...
... given destination Routing table has an entry for each destination specifying output port that leads to next hop Size of table becomes impractical for very large number of destinations ...
CA*net II
... OBGP can use “optical” AS path to concatenate wavelengths across multiple AS to have continuous QoS path ...
... OBGP can use “optical” AS path to concatenate wavelengths across multiple AS to have continuous QoS path ...
Chapter 1. Introduction to Data Communications
... – 2. Technology: gigabit Ethernet. ATM and FDDI use has started to fall off over the past year. – 3. The ideal network design combines use of layer-2 and layer-3 Ethernet switches. – 4. The access layer (LANs) uses 10/100 layer-2 switches using cat 5e or cat 6 twisted pair cables (cat 6 is needed fo ...
... – 2. Technology: gigabit Ethernet. ATM and FDDI use has started to fall off over the past year. – 3. The ideal network design combines use of layer-2 and layer-3 Ethernet switches. – 4. The access layer (LANs) uses 10/100 layer-2 switches using cat 5e or cat 6 twisted pair cables (cat 6 is needed fo ...
Sybex CCNA 640-802 Chapter 1: Internetworking Instructor
... Full-duplex Ethernet can be used in three situations: • With a connection from a switch to a host • With a connection from a switch to a switch • With a connection from a host to a host using a crossover cable ...
... Full-duplex Ethernet can be used in three situations: • With a connection from a switch to a host • With a connection from a switch to a switch • With a connection from a host to a host using a crossover cable ...
Data Communications and Computer Networks Chapter 10
... First routing algorithm used on the Internet (and still in use) is called a distance-vector algorithm (This algorithm is adaptive) Each node maintained its own table – distributed algorithm E.g. RIP – Routing Information Protocol ...
... First routing algorithm used on the Internet (and still in use) is called a distance-vector algorithm (This algorithm is adaptive) Each node maintained its own table – distributed algorithm E.g. RIP – Routing Information Protocol ...
Essential Elements of Medical Networks
... based on MAC addresses which it learns by looking inside the packet. - decides where to send each packet based on its internal configuration settings ( a switch is “.. a hub with intelligence”) - can establish multiple conversations simultaneously ...
... based on MAC addresses which it learns by looking inside the packet. - decides where to send each packet based on its internal configuration settings ( a switch is “.. a hub with intelligence”) - can establish multiple conversations simultaneously ...
Voice Over IP
... globe; their call signals may traverse thousands of miles; and the voice traffic may be transported through heterogeneous subnetworks. Yet the network should provide a fast response time so that the people engaged in the conversation feel they are right next to each other. To ensure quality of servi ...
... globe; their call signals may traverse thousands of miles; and the voice traffic may be transported through heterogeneous subnetworks. Yet the network should provide a fast response time so that the people engaged in the conversation feel they are right next to each other. To ensure quality of servi ...