Selling an Idea or a Product
... Epoch # – uniquely identifies which set of sequence numbers are being used. ...
... Epoch # – uniquely identifies which set of sequence numbers are being used. ...
Routing-distancevector
... • Solution 2: Never advertise the cost to a neighbor if this neighbor is the next hop on the current path (Split Horizon) – Example: A would not send the first routing update to B, since B is the next hop on A’s current route to C – Split Horizon does not solve count-to-infinity in all cases! ...
... • Solution 2: Never advertise the cost to a neighbor if this neighbor is the next hop on the current path (Split Horizon) – Example: A would not send the first routing update to B, since B is the next hop on A’s current route to C – Split Horizon does not solve count-to-infinity in all cases! ...
comm3380-slides-week08_PA1
... Request and Response messages - requests update and responds with update • Broadcasts request out every RIP configured interface on start up of routing protocol. • Upon receipt of response message, routes are checked in current routing table, if absent, routes are added, if existing, route only upda ...
... Request and Response messages - requests update and responds with update • Broadcasts request out every RIP configured interface on start up of routing protocol. • Upon receipt of response message, routes are checked in current routing table, if absent, routes are added, if existing, route only upda ...
PowerPoint
... information learned internally (e.g., OSPF) and externally (e.g., BGP). • OSPF and BGP are protocols that communicate knowledge about destinations between routers. ...
... information learned internally (e.g., OSPF) and externally (e.g., BGP). • OSPF and BGP are protocols that communicate knowledge about destinations between routers. ...
Network Layer
... • RIP had widespread use because it was distributed with BSD Unix in “routed”, a router management daemon. • RIP is the most used Distance Vector protocol. • RFC1058 in June 1988. • Sends packets every 30 seconds or faster. • Runs over UDP. • Metric = hop count • BIG problem is max. hop count =16 ...
... • RIP had widespread use because it was distributed with BSD Unix in “routed”, a router management daemon. • RIP is the most used Distance Vector protocol. • RFC1058 in June 1988. • Sends packets every 30 seconds or faster. • Runs over UDP. • Metric = hop count • BIG problem is max. hop count =16 ...
Chapter 02 - Communicating Over The Network
... Are the set of rules by which routers dynamically share their routing information. When a router receives information about new or changed routes, it updates its own routing table and, in turn, passes the information to other routers Ex: Routing Information Protocol (RIP), Enhanced Interior Gateway ...
... Are the set of rules by which routers dynamically share their routing information. When a router receives information about new or changed routes, it updates its own routing table and, in turn, passes the information to other routers Ex: Routing Information Protocol (RIP), Enhanced Interior Gateway ...
A Guide to Designing and Implementing Local and Wide Area
... to another, reducing excessive traffic Join neighboring or distant networks Connect dissimilar networks Prevent network bottlenecks by isolating portions of a network Secure portions of a network from intruders ...
... to another, reducing excessive traffic Join neighboring or distant networks Connect dissimilar networks Prevent network bottlenecks by isolating portions of a network Secure portions of a network from intruders ...
IOSR Journal of Electronics and Communication Engineering (IOSR-JECE)
... incorporating an information theoretic trust framework which ascertained presence of colluding attackers by evaluating and quantifying trust values based on uncertainty measures. Entropy functions represented uncertainty in node behaviour called CAP-OLSR. Simulation showed that CAP-OLSR efficiently ...
... incorporating an information theoretic trust framework which ascertained presence of colluding attackers by evaluating and quantifying trust values based on uncertainty measures. Entropy functions represented uncertainty in node behaviour called CAP-OLSR. Simulation showed that CAP-OLSR efficiently ...
Napster/Genulla/Freenet - Department of Computer Science
... The songs are then stored and indexed on a server that is part of the web site Other uses can connect to the web site and downloads the songs they are interested in ...
... The songs are then stored and indexed on a server that is part of the web site Other uses can connect to the web site and downloads the songs they are interested in ...
Lecture 10
... • IP address space is limited -- too many networks. • In addition, the more the networks, the more would be the entries in each routing table. • We need to take care so that address space is not used up. • Note -- 221 Class C addresses but only 214 Class B. – A Class C network can have at most 255 h ...
... • IP address space is limited -- too many networks. • In addition, the more the networks, the more would be the entries in each routing table. • We need to take care so that address space is not used up. • Note -- 221 Class C addresses but only 214 Class B. – A Class C network can have at most 255 h ...
Traffic Engineering
... manipulating link weights in the OSPF routing protocol More scalable than Overlay Model Packets are forwarded based on longestprefix match ...
... manipulating link weights in the OSPF routing protocol More scalable than Overlay Model Packets are forwarded based on longestprefix match ...
Slide 1
... Subnet Masks (VLSM) unless all subnet masks are the same! • Classful routing protocols can only route for specific subnets, if all subnet masks are the same! • Classless routing protocols (RIPv2, EIGRP, OSPF) support classless address and VLSM by sending subnet mask information as well as network in ...
... Subnet Masks (VLSM) unless all subnet masks are the same! • Classful routing protocols can only route for specific subnets, if all subnet masks are the same! • Classless routing protocols (RIPv2, EIGRP, OSPF) support classless address and VLSM by sending subnet mask information as well as network in ...
ppt1
... • Forward along successively closer faces by right-hand rule, until reaching destination • Packets return to greedy mode upon reaching node closer to destination than perimeter mode entry point ...
... • Forward along successively closer faces by right-hand rule, until reaching destination • Packets return to greedy mode upon reaching node closer to destination than perimeter mode entry point ...
Internetwork Operation
... • Node maintains vector of link costs for each directly attached network and distance and next-hop vectors for each destination • Used by Routing Information Protocol (RIP) • Requires transmission of lots of information by each router — Distance vector to all neighbors — Contains estimated path cost ...
... • Node maintains vector of link costs for each directly attached network and distance and next-hop vectors for each destination • Used by Routing Information Protocol (RIP) • Requires transmission of lots of information by each router — Distance vector to all neighbors — Contains estimated path cost ...
Document
... • each packet uses full link bandwidth • resources used as needed, Bandwidth division into “pieces” Dedicated allocation Resource reservation ...
... • each packet uses full link bandwidth • resources used as needed, Bandwidth division into “pieces” Dedicated allocation Resource reservation ...
Internet Routing
... • Security: all OSPF messages authenticated (to prevent malicious intrusion) Multiple ple samesame-cost path pathss allowed (only one path in RIP) • Multi • For each link, multiple cost metrics for different TOS (e.g., satellite link cost set “low” for best effort; high for real time) • Integrated u ...
... • Security: all OSPF messages authenticated (to prevent malicious intrusion) Multiple ple samesame-cost path pathss allowed (only one path in RIP) • Multi • For each link, multiple cost metrics for different TOS (e.g., satellite link cost set “low” for best effort; high for real time) • Integrated u ...
LAN / WAN / Extranet และ Network Topology แบบต่าง ๆ
... Two protocol standards are well-known: – TCP/IP: widely implemented – OSI: well-known, less used, still useful for ...
... Two protocol standards are well-known: – TCP/IP: widely implemented – OSI: well-known, less used, still useful for ...
The HOPI Testbed and the new Internet2 Network
... • Applications that demand very high bandwidth for relatively short periods of time • Backplanes for distributed computers or content distribution schemes ...
... • Applications that demand very high bandwidth for relatively short periods of time • Backplanes for distributed computers or content distribution schemes ...
Network-Layer Protocol Operations
... Real World Routing • multiple routing protocols are generally necessary • interior routing is a LOT different than exterior routing • multi-protocol issues ...
... Real World Routing • multiple routing protocols are generally necessary • interior routing is a LOT different than exterior routing • multi-protocol issues ...
William Stallings Data and Computer Communications
... • Node maintains vector of link costs for each directly attached network and distance and next-hop vectors for each destination • Used by Routing Information Protocol (RIP) • Requires transmission of lots of information by each router — Distance vector to all neighbors — Contains estimated path cost ...
... • Node maintains vector of link costs for each directly attached network and distance and next-hop vectors for each destination • Used by Routing Information Protocol (RIP) • Requires transmission of lots of information by each router — Distance vector to all neighbors — Contains estimated path cost ...
Introduction to Routing
... To do multicast routing, each router computes a spanning tree covering all other routers in the subnet. When a process sends a multicast packet to a group, the first router examines its spanning tree ad prunes it, removing all lines that do not lead to hosts that are members of the group. The simple ...
... To do multicast routing, each router computes a spanning tree covering all other routers in the subnet. When a process sends a multicast packet to a group, the first router examines its spanning tree ad prunes it, removing all lines that do not lead to hosts that are members of the group. The simple ...