WAN Technologies and Routing Overview

Static routing uses a fixed path for data transmission, while dynamic routing adapts based on network conditions.

The major advantage of static routing is its simplicity, and the major disadvantage is its inflexibility.

Broadcast routing transmits data to all nodes in the network, characterized by flooding the network.

<p>Network software selects the best route based on current network conditions in dynamic routing.</p> Signup and view all the answers

<p>Static routing tables remain unchanged even when network changes occur.</p> Signup and view all the answers

<p>Most networks prefer dynamic routing due to its flexibility in adapting to changing conditions.</p> Signup and view all the answers

<p>Routing tables are data structures that store routes for data transmission paths.</p> Signup and view all the answers

<p>If the path is blocked in static routing, data may not arrive at the destination.</p> Signup and view all the answers

<p>Dynamic routing improves performance by adapting to network conditions.</p> Signup and view all the answers

<p>Decisions in dynamic routing are more complex, which can lead to inefficiencies.</p> Signup and view all the answers

<p>In flooding, a packet is sent to every neighbor of a source node, and each node retransmits it on all outgoing links except the one it arrived on.</p> Signup and view all the answers

<p>The central site maintains a routing table that nodes consult for the best route to transmit data.</p> Signup and view all the answers

<p>Isolated routing involves each node using only local information to maintain its own routing table.</p> Signup and view all the answers

<p>Reacting too quickly can cause oscillation in the routing decisions.</p> Signup and view all the answers

<p>A hop count field helps prevent packets from circulating indefinitely within the network.</p> Signup and view all the answers

<p>Distributed routing allows each node to maintain and utilize its own routing information, promoting locality in decision-making.</p> Signup and view all the answers

<p>A time stamp helps calculate the time a packet spends in transit by comparing it with the receiver's current time.</p> Signup and view all the answers

<p>Static routes change slowly over time, while dynamic routes can change quickly in response to link cost changes.</p> Signup and view all the answers

<p>Dijkstra's Algorithm finds the shortest path distance from a single source node to all other nodes in a graph.</p> Signup and view all the answers

<p>Messages in DVR contain pairs of values specifying a destination and the distance to that destination.</p> Signup and view all the answers

<p>A router sends a complete list of destinations along with the current cost of reaching each network.</p> Signup and view all the answers

<p>The distance is defined as the sum of the weights along the path between the two nodes.</p> Signup and view all the answers

<p>A 'link state' algorithm requires global knowledge, where all routers have complete topology and link cost information.</p> Signup and view all the answers

<p>The iterative process involves computation and the exchange of information among neighboring routers.</p> Signup and view all the answers

<p>Routers primarily manage data traffic between networks by directing data packets from input ports to output ports and examining header information.</p> Signup and view all the answers

<p>Forwarding refers to moving packets through a router's interfaces, while routing involves determining the best path for packets from their source to destination.</p> Signup and view all the answers

<p>The control plane handles network-wide routing decisions and manages how packets are directed through the network, relying on algorithms and protocols.</p> Signup and view all the answers

<p>Dijkstra’s least cost algorithm is used to determine the shortest path from a source node to all other nodes in a network.</p> Signup and view all the answers

<p>IP, or Internet Protocol, provides the addressing and formatting standards necessary for routing packets across networks.</p> Signup and view all the answers

<p>Centralized routing is managed by a single, central controller, whereas distributed routing involves multiple routers sharing authority to make routing decisions.</p> Signup and view all the answers

<p>In flooding, incoming packets are sent to all outgoing links to reach the destination, without any pre-determined path.</p> Signup and view all the answers

<p>A router consists of input ports, switching mechanisms, output ports, buffer management systems, and scheduling methods.</p> Signup and view all the answers

<p>Routing involves dynamically discovering optimal paths in changing network topologies and ensuring data gets to its destination in an efficient manner.</p> Signup and view all the answers

<p>NAT allows multiple devices on a local network to share a single public IP address while maintaining their private IP addresses internally.</p> Signup and view all the answers

<p>Input ports receive incoming data packets, while output ports send data packets to the appropriate next destination.</p> Signup and view all the answers

<p>SDN decouples the control plane from the data plane, allowing for centralized control of routing decisions and improved management of traffic flows.</p> Signup and view all the answers

<p>The data plane is responsible for the actual forwarding of packets based on the routing decisions made by the control plane.</p> Signup and view all the answers

<p>Adaptive routing refers to routing strategies that can adjust paths based on current network conditions, such as changes in topology or traffic load.</p> Signup and view all the answers