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poster_routing - Columbia University
poster_routing - Columbia University

... We used the fact that the internet forms a scale-free graph, and exploited the unique properties of those graphs to create a new routing scheme. Our scheme is extremely simple and fast (both in the preprocessing and routing), demanding labeling with very short label sizes, and routing tables as smal ...
Introduction to IP Routing
Introduction to IP Routing

...  Each link, the connected nodes and the metric is flooded to all routers  Each link up/down status change is incrementally flooded  Each router re-computes the routing table in parallel using the common link state database  OSPF is the main protocol in use today ...
Introduction to IP Routing
Introduction to IP Routing

...  Each link, the connected nodes and the metric is flooded to all routers  Each link up/down status change is incrementally flooded  Each router re-computes the routing table in parallel using the common link state database  OSPF is the main protocol in use today ...
- Home - KSU Faculty Member websites
- Home - KSU Faculty Member websites

... administrator to provide broadcast containment, and low-level security on the LAN. • Subnet addresses include the Class A, Class B, and Class C network portion, plus a subnet field and a host field. The subnet field and the host field are created from the original host portion of the major IP addres ...
PPT
PPT

... Collision-Free Real-Time Protocol • Note – If combined with a special routing protocol, end-to-end delay guarantee is the sum of the bounded delay on each cell along the path – Six possible directions assigned statically to the inter-cell frames ...
Network Routing Algorithms
Network Routing Algorithms

... • Neighboring routers periodically exchange information from their routing tables. • Routers replace routes in their own routing tables anytime that neighbors have found better routes. • Information provided from neighbors – Outgoing line used for destination – Estimate of time or distance • can be ...
Network Routing Algorithms
Network Routing Algorithms

... • Neighboring routers periodically exchange information from their routing tables. • Routers replace routes in their own routing tables anytime that neighbors have found better routes. • Information provided from neighbors – Outgoing line used for destination – Estimate of time or distance • can be ...
Recitation_AODV
Recitation_AODV

... a route is found all possible routes have been examined ...
Energy Efficient Implementation of IETF Protocols on Constrained
Energy Efficient Implementation of IETF Protocols on Constrained

Networks * The Big Picture
Networks * The Big Picture

... ◦ software overhead: overhead associated with sending and receiving messages at end stations ◦ channel delay: caused by the channel occupancy ◦ routing delay: time spent in the successive switches in making a sequence of routing decisions along the routing path ◦ contention delay: caused by traffic ...
Traffic Engineering and Routing
Traffic Engineering and Routing

... • “NetScope: Traffic Engineering for IP Networks,” A. Feldmann, A. Greenberg, C. Lund, N. Reingold, and J. Rexford, IEEE Network, Mar./Apr. 2000, pp. 11-19 • “Traffic Engineering with MPLS in the Internet,” X. Xiao, A. Hannan, B. Bailey, and L.M. Ni, Ibid., pp. 28-33 • “Capacity Management and Routi ...
File
File

... D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate default U - per-user static route Gateway of last resort is 0.0.0.0 to network 0.0.0.0 ...
A S P
A S P

... A group of mobile nodes made a MANET[1]. They form a network for information exchange. For this information exchange, they never use the central authority as well as existing fixed network infrastructure. This upcoming technology creates new research opportunities and dynamic challenges for differen ...
Embedded System Communication
Embedded System Communication

... qualitative parameters  Network resources  Bandwidth  Buffer space  Protocol efficiency (data bits/bandwidth). Depends on ...
Embedded System Communication
Embedded System Communication

... qualitative parameters  Network resources  Bandwidth  Buffer space  Protocol efficiency (data bits/bandwidth). Depends on ...
Routing - University of Virginia
Routing - University of Virginia

... IGF is a combined Routing/MAC protocol Eligible nodes - 60 degree cone (shift cone if necessary) RTS - set timer based on distance and energy remaining ...
Lecture 5
Lecture 5

... table, send an ICMP Host/Network unreachable message to the source ...
Datagram vs. Virtual Circuit
Datagram vs. Virtual Circuit

Reading Report 4 Yin Chen 26 Feb 2004
Reading Report 4 Yin Chen 26 Feb 2004

... Have functionalities as : issue queries, display search results, accept queries from other servents, check for matches against their local data set, send back response, manage background traffic. ...
Brocade
Brocade

...  Minimum number of ip hops to wide-area network  High bandwidth outgoing link  So, gateway routers or machines close by those ...
security protocols for wireless sensor network
security protocols for wireless sensor network

... • An adversary situated close to a base station may be able to completely disrupt routing by creating a well-placed wormhole. • An adversary could convince nodes who would normally be multiple hops from a base station that they are only one or two hops away via the wormhole. ...
A Performance Comparision of Multi
A Performance Comparision of Multi

... When originating or forwarding a packet using a source route,each node transmitting the packet is responsible for confirming that the packet has been received by the next hop along the source route; the packet is retransmitted (up to a maximum number of attempts) until this confirmation of receipt i ...
IOSR Journal of Electronics and Communication Engineering (IOSR-JECE)
IOSR Journal of Electronics and Communication Engineering (IOSR-JECE)

No Slide Title
No Slide Title

... – carries local connectivity information – provides • shortest path route through network • default route for non-BGP speakers • relatively fast convergence time (~1 sec) ...
A Survey of Secure Wireless Ad Hoc Routing
A Survey of Secure Wireless Ad Hoc Routing

... packet that includes the target D, its certificate (certS), a nonce N, and a timestamp t. 2. Each node that forwards this REQUEST checks the signature or signatures. Node C checks node B’s certificate certB, then checks the signature on the outer message. C then verifies the certificate certS for in ...
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Routing in delay-tolerant networking

Routing in delay-tolerant networking concerns itself with theability to transport, or route, data from a source to adestination, which is a fundamental ability all communication networks musthave. Delay- and disruption-tolerant networks(DTNs) are characterized by their lack of connectivity, resulting in a lack of instantaneous end-to-end paths. In these challenging environments, popular ad hoc routing protocols such as AODV and DSR fail to establish routes. This is due to these protocols trying to first establish a complete route and then, after the route has been established, forward the actual data. However, when instantaneous end-to-end paths are difficult or impossible to establish, routing protocols must take to a ""store and forward"" approach, where data isincrementally moved and stored throughout the network in hopes that it will eventually reach its destination. A common technique used tomaximize the probability of a message being successfully transferred is toreplicate many copies of the message in hopes that one will succeed inreaching its destination.
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