16
The availability of networks, and the metric (or "cost" or "distance") to reach them, according to the system used by the routing protocol to calculate this "metric".The availability of networks, and the metric (or "cost" or "distance") to reach them, according to the system used by the routing protocol to calculate this "metric".The availability of networks, and the metric (or "cost" or "distance") to reach them, according to the system used by the routing protocol to calculate this "metric".The availability of networks, and the metric (or "cost" or "distance") to reach them, according to the system used by the routing protocol to calculate this "metric".
EIGRP
route poisouning
Failed routes are advertised with a metric of infinity.
RIP (Routing Information Protocol) uses hop count as the metric. It measures the distance to a destination network based on the number of routers (hops) that a packet has to traverse to reach the destination.
Metrics used by routing protocols are used to determine the best path for routing data packets. Different routing protocols use various metrics such as hop count, bandwidth, delay, load, and cost to make routing decisions. The choice of metric can impact the efficiency and effectiveness of the routing protocol in selecting optimal paths.
Split horizon with poison reverse.
A hop. :)
Path determilnation, metric convergenence and load balancing
RIP (Routing Information Protocol) is a distance-vector routing protocol that uses hop count as its metric for path selection. RIP routers broadcast their entire routing table every 30 seconds as a broadcast. RIP is classified as a classful routing protocol, meaning it does not support the use of VLSM (Variable Length Subnet Masking) and requires all devices in a network to use the same subnet mask.
In a distance vector routing protocol, such as RIP or EIGRP, each router sends its routing table to neighboring routers. The routers don't know the topology, i.e., how other routers are interconnected. In a link state routing protocol, such as OSPF or IS-IS, routers first exchange information about connections within the network (or an area of the network), and build a topology table. Then each router uses Dijkstra's algorithm to calculate the best route to each destination.
It depends on the routing protocol in use, for example RIP uses the hop-count to determine the best route where less hops is better, OSPF uses cost, EIGRP uses a composite metric (BW + Delay + Reliability + Load) etc.