Large-scale hierarchical networks: How to compute an optimal
... 2.1 Locations, hardware and capacities Starting point is the set of locations, comprising all user locations as sources or destinations of communication traffic. For each location, it is specified to which hierarchy levels it might belong, e.g., a location may be used in the backbone only if suffic ...
... 2.1 Locations, hardware and capacities Starting point is the set of locations, comprising all user locations as sources or destinations of communication traffic. For each location, it is specified to which hierarchy levels it might belong, e.g., a location may be used in the backbone only if suffic ...
21. + 24. P2P (21.4.+28.4.) - ole unibz
... • Special case: peer with the file located behind a firewall/NAT gateway the downloading peer – cannot initiate a TCP/HTTP connection • can instead send the PUSH message asking the other peer to initiate a TCP/HTTP connection to it and then transfer (push) the file via it • does not work if both pee ...
... • Special case: peer with the file located behind a firewall/NAT gateway the downloading peer – cannot initiate a TCP/HTTP connection • can instead send the PUSH message asking the other peer to initiate a TCP/HTTP connection to it and then transfer (push) the file via it • does not work if both pee ...
Talk Viewgraphs - People
... Given: M, a I x I doubly sub-stochastic rate-demand matrix 1) Decomposition: decompose M=[mij] into a sequence of permutation matrices, s.t. for an input/output port pair ij, intensity of the offered slots is at least mij – Birkoff/von Neumann: a doubly stochastic matrix M can be decomposed as a per ...
... Given: M, a I x I doubly sub-stochastic rate-demand matrix 1) Decomposition: decompose M=[mij] into a sequence of permutation matrices, s.t. for an input/output port pair ij, intensity of the offered slots is at least mij – Birkoff/von Neumann: a doubly stochastic matrix M can be decomposed as a per ...
Network Simulator ns-2
... NS-2 is written in C++ with OTcl interpreter as a front end TclCL provides linkage for class hierarchy, object instantiation, variable binding and command dispatching NS-2 provides abundant implementations of protocols used in wired and wireless networks ...
... NS-2 is written in C++ with OTcl interpreter as a front end TclCL provides linkage for class hierarchy, object instantiation, variable binding and command dispatching NS-2 provides abundant implementations of protocols used in wired and wireless networks ...
On the Use of Feedback in an Introduction-Based Reputation Protocol ∗
... the introducer, already connected to each introducee. The introducer may or may not offer the introduction (based on its reputations of the introducees) and each introducee may or may not accept the introduction (based on its reputation of the introducer), but if offered and accepted then the connec ...
... the introducer, already connected to each introducee. The introducer may or may not offer the introduction (based on its reputations of the introducees) and each introducee may or may not accept the introduction (based on its reputation of the introducer), but if offered and accepted then the connec ...
Algorithmic Mechanism Design
... there is the undirected edge (u,v) if it is bought by u or v (or both) ...
... there is the undirected edge (u,v) if it is bought by u or v (or both) ...
Xiu Chen - PeerToPeerNetworks_CathyChen
... In structured networks the overlay topology is tightly controlled and files (or pointers to them) are placed at precisely specified locations. These systems essentially provide a mapping between content (e.g. file identifier) and location (e.g. node address), in the form of a distributed routing tab ...
... In structured networks the overlay topology is tightly controlled and files (or pointers to them) are placed at precisely specified locations. These systems essentially provide a mapping between content (e.g. file identifier) and location (e.g. node address), in the form of a distributed routing tab ...
Chapter 11&12 Routing
... —can select outgoing path based on a probability • e.g. probability based on data rate – good traffic distribution ...
... —can select outgoing path based on a probability • e.g. probability based on data rate – good traffic distribution ...
24-p2p
... – Search: Out-of-band. E.g., use Google to find a tracker for the file you want. – Fetch: Download chunks of the file from your peers. Upload chunks you have to them. ...
... – Search: Out-of-band. E.g., use Google to find a tracker for the file you want. – Fetch: Download chunks of the file from your peers. Upload chunks you have to them. ...
GL3211911195
... RREP. The sequence number in RREP must be larger than or equal to the one carried in corresponding RREQ to avoid the source host to adopt a stale path. When more than one path represented by different RREPs is available, the one with the largest destination sequence number is used. If several paths ...
... RREP. The sequence number in RREP must be larger than or equal to the one carried in corresponding RREQ to avoid the source host to adopt a stale path. When more than one path represented by different RREPs is available, the one with the largest destination sequence number is used. If several paths ...
CMPT 880: P2P Systems
... • Forming and customizing topology to fit application’s needs (e.g., short delay, reliability, high BW, …) • Designing communication protocols among nodes ...
... • Forming and customizing topology to fit application’s needs (e.g., short delay, reliability, high BW, …) • Designing communication protocols among nodes ...
Chapter 7 Lecture Presentation
... Routing decision involves finding next hop in route to 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 ...
... Routing decision involves finding next hop in route to 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 ...
Ad hoc network routing - Networking, Sensing
... AODV [5] is an on-demand routing protocol built on the distance vector algorithm. When a source node desires to send a message to some destination node and does not already have a valid route, it initiates a path discovery process to erect a valid path. The source node floods a route request (RREQ) ...
... AODV [5] is an on-demand routing protocol built on the distance vector algorithm. When a source node desires to send a message to some destination node and does not already have a valid route, it initiates a path discovery process to erect a valid path. The source node floods a route request (RREQ) ...
The Term Paper for CS171 - Stuff Yaron Finds Interesting
... the specification of internet standards, must operate through the receiving nodes and not through the routers. Using Figure 1 as an example the optimal solution assuming modification of the router R costs 375 units ...
... the specification of internet standards, must operate through the receiving nodes and not through the routers. Using Figure 1 as an example the optimal solution assuming modification of the router R costs 375 units ...
IOSR Journal of Computer Engineering (IOSR-JCE)
... use neighboring nodes to reach another node that is not within its transmission range. Then, the intermediate nodes are the routers. This being said, we can now concentrate on the security aspect of the ad-hoc network. In this paper our main focus is regarding the security of the currently implement ...
... use neighboring nodes to reach another node that is not within its transmission range. Then, the intermediate nodes are the routers. This being said, we can now concentrate on the security aspect of the ad-hoc network. In this paper our main focus is regarding the security of the currently implement ...
ppt
... If a given node N receives a MAD message from a neighbor M, it will repeat this message if one of its 1-hop neighbors has the same address as the one contained in the MAD message. ...
... If a given node N receives a MAD message from a neighbor M, it will repeat this message if one of its 1-hop neighbors has the same address as the one contained in the MAD message. ...