Chapter 4: Network Layer
... ❒ VC network provides network-layer connection service ❒ Analogous to the transport-layer services, but: Service: host-to-host ❍ No choice: network provides one or the other ❍ Implementation: in the core ...
... ❒ VC network provides network-layer connection service ❒ Analogous to the transport-layer services, but: Service: host-to-host ❍ No choice: network provides one or the other ❍ Implementation: in the core ...
Transmission Control Protocol (TCP)
... protocol used in the Internet Address Resolution Protocol (ARP): IP address Ethernet address Reverse Address Resolution Protocol (RARP): Ethernet address IP address Bootstrap Protocol (BOOTP): function is similar to RARP, but using UDP messages, and was extended to DHCP (Dynamic Host Configurati ...
... protocol used in the Internet Address Resolution Protocol (ARP): IP address Ethernet address Reverse Address Resolution Protocol (RARP): Ethernet address IP address Bootstrap Protocol (BOOTP): function is similar to RARP, but using UDP messages, and was extended to DHCP (Dynamic Host Configurati ...
Internet Protocol
... – Consider a network with 500 hosts – Classful address: a class B address, wasting over 64K addresses – CIDR: a network with /23 – One class B address can be used for 128 such networks using CIDR ...
... – Consider a network with 500 hosts – Classful address: a class B address, wasting over 64K addresses – CIDR: a network with /23 – One class B address can be used for 128 such networks using CIDR ...
ppt
... • On-demand protocol • Table-driven, distance-vector routing • Similar to DSR in finding routes, but • Uses sequence numbers on route updates • Has an idea of freshness of a route ...
... • On-demand protocol • Table-driven, distance-vector routing • Similar to DSR in finding routes, but • Uses sequence numbers on route updates • Has an idea of freshness of a route ...
sockets-bridge-learning
... – Often a limitation on the physical distance – E.g. to detect collisions in a contention based network ...
... – Often a limitation on the physical distance – E.g. to detect collisions in a contention based network ...
2011-02-3.presentation
... We used ‘show isis topology’ to inspect R4’s LSDB that contains, among other things, the sequence number of the last LSP that was received. Our seq. number can be seen on the last ...
... We used ‘show isis topology’ to inspect R4’s LSDB that contains, among other things, the sequence number of the last LSP that was received. Our seq. number can be seen on the last ...
RSE-CH4g - wmmhicks.com
... Routers and multilayer switches both perform routing (connecting networks) Routers may have different types of interfaces (Ethernet, serial, ATM, etc.) while multilayer switches will only have Ethernet interfaces. While routers can be used to segment LAN devices, their major use is as WAN devi ...
... Routers and multilayer switches both perform routing (connecting networks) Routers may have different types of interfaces (Ethernet, serial, ATM, etc.) while multilayer switches will only have Ethernet interfaces. While routers can be used to segment LAN devices, their major use is as WAN devi ...
21. + 24. P2P (21.4.+28.4.) - ole unibz
... Super-peer-based P2P architectures • Some nodes will act as servers for a subset of ...
... Super-peer-based P2P architectures • Some nodes will act as servers for a subset of ...
Relaying and Base Station Cooperation
... imperfect channel state information (CSI)) [11]. As available scientific work differs in its models and assumptions, it is difficult to compare several techniques with each other. Moreover, the performance heavily depends on various parameters such as traffic load or effective signal-tointerference- ...
... imperfect channel state information (CSI)) [11]. As available scientific work differs in its models and assumptions, it is difficult to compare several techniques with each other. Moreover, the performance heavily depends on various parameters such as traffic load or effective signal-tointerference- ...
Coverage and Connectivity Probabilities in WSN with
... Abstract: A sensor network provides flexible communication network, which can be deployed rapidly over wide and/or inaccessible areas. However, the need to gather data from all sensors in the network imposes constraints on the distances between sensors. In a WSN, after collecting information from th ...
... Abstract: A sensor network provides flexible communication network, which can be deployed rapidly over wide and/or inaccessible areas. However, the need to gather data from all sensors in the network imposes constraints on the distances between sensors. In a WSN, after collecting information from th ...
Managing Dynamic Temporal Constraint Networks
... do not specify an exact time for the start of the activities, but just an interval of possibilities [MUS93, SMI93]. A good principle in the attempt of satisfying these requirements seems to be the utilization of algorithms that: (a) work incrementally like the problem solver does; (b) use all the in ...
... do not specify an exact time for the start of the activities, but just an interval of possibilities [MUS93, SMI93]. A good principle in the attempt of satisfying these requirements seems to be the utilization of algorithms that: (a) work incrementally like the problem solver does; (b) use all the in ...
Link-State Routing Protocols
... Uses a Hello Protocol to find neighbors & check they are still up. – Connected interfaces that are using the same link state routing protocols will exchange hello packets – Once routers learn it has neighbors they form an adjacency • 2 adjacent neighbors will exchange hello packets • These packets ...
... Uses a Hello Protocol to find neighbors & check they are still up. – Connected interfaces that are using the same link state routing protocols will exchange hello packets – Once routers learn it has neighbors they form an adjacency • 2 adjacent neighbors will exchange hello packets • These packets ...
Unicast Routing Protocols
... • OSPF – Open Shortest Path First protocol – assigns a cost for passing through a network based on the type of service required – routes through the network can have different cost – each router would have several tables • BGP – Border Gateway Protocol – is an exterior routing protocol that uses a p ...
... • OSPF – Open Shortest Path First protocol – assigns a cost for passing through a network based on the type of service required – routes through the network can have different cost – each router would have several tables • BGP – Border Gateway Protocol – is an exterior routing protocol that uses a p ...
... protocol, instead of Internet, IP prefix, AS or router, BGP, even if our examples and experiments pertain to inter-AS routing. The remainder of the paper is organized as follows. Section II presents the routing and forwarding model. Section III introduces DRAGON’s filtering strategy and aggregation ...
Low-Cost Driver Assistance Using ZigBee®/IEEE® 802.15.4
... entry and exit points can maintain a log of passing vehicle IDs plus a timestamp. Nodes can timestamp the entry and exit of ...
... entry and exit points can maintain a log of passing vehicle IDs plus a timestamp. Nodes can timestamp the entry and exit of ...
Managed Video Services over Multi-Domain Software
... messaging overhead. Fig.2 illustrates a multi-domain SDN with 4 domains. The complete network topology is presented in Fig.2a, while aggregated model as seen by a particular domain controller is presented in Fig.2b. The unfilled and filled dots stand for intra-domain switches and border gateways, re ...
... messaging overhead. Fig.2 illustrates a multi-domain SDN with 4 domains. The complete network topology is presented in Fig.2a, while aggregated model as seen by a particular domain controller is presented in Fig.2b. The unfilled and filled dots stand for intra-domain switches and border gateways, re ...
Computer Networks(Routing and IPv6).
... other router in its area of its neighbors and costs. • This information allows each router to construct the graph for its area and compute the shortest path. • Backbone routers accept information from the area border routers in order to compute the best route from each backbone router to every other ...
... other router in its area of its neighbors and costs. • This information allows each router to construct the graph for its area and compute the shortest path. • Backbone routers accept information from the area border routers in order to compute the best route from each backbone router to every other ...
CS 552 Computer Networks Quality Of Service
... – Aids in combining similar flows – Filter can be shared (SE-style) or can use wild cards (all senders on a given port or a given sender on all ports, etc) – The style may be shared or distinct in a sense that all reservations may be handled as one single reservation or there may be a single reserva ...
... – Aids in combining similar flows – Filter can be shared (SE-style) or can use wild cards (all senders on a given port or a given sender on all ports, etc) – The style may be shared or distinct in a sense that all reservations may be handled as one single reservation or there may be a single reserva ...
Course Notes
... • Debate in the 1970ies • The connection-less IP protocol was adopted – Simpler to realize, especially for inter-networking – Cannot provide ordered delivery, flow control and error control (if this is required by application, TCP must be used) ...
... • Debate in the 1970ies • The connection-less IP protocol was adopted – Simpler to realize, especially for inter-networking – Cannot provide ordered delivery, flow control and error control (if this is required by application, TCP must be used) ...
Peer-to-peer architecture for collaborative intrusion and malware
... can assign a unique node identifier nodeID to each collaboration module. The collaboration module has three main purposes. – It is responsible for retrieving new events that have been stored in the local alert database. These events are submitted to the DHT-based overlay network through a key (messa ...
... can assign a unique node identifier nodeID to each collaboration module. The collaboration module has three main purposes. – It is responsible for retrieving new events that have been stored in the local alert database. These events are submitted to the DHT-based overlay network through a key (messa ...
lec22-distribsystems
... communication network, including handling the address of outgoing packets, decoding the address of incoming packets, and maintaining routing information for proper response to changing load levels ...
... communication network, including handling the address of outgoing packets, decoding the address of incoming packets, and maintaining routing information for proper response to changing load levels ...
Computer Networks - Network Optiminization Research Group
... other router in its area of its neighbors and costs. • This information allows each router to construct the graph for its area and compute the shortest path. • Backbone routers accept information from the area border routers in order to compute the best route from each backbone router to every other ...
... other router in its area of its neighbors and costs. • This information allows each router to construct the graph for its area and compute the shortest path. • Backbone routers accept information from the area border routers in order to compute the best route from each backbone router to every other ...