Which routing protocol uses cost as its default metric?
OSPF
Each routing protocol uses its own metric. For example, RIP uses hop counts as a metric, while OSPF uses cost.
Which are the default metrics for EIGRP routing protocol?
EIGRP determines the value of the path using five metrics: bandwidth, load, delay, reliability and MTU.
Which 2 types of metrics that are used by routing protocols?
Some use simple metrics (such as RIPv1 and RIPv2), and some use complex metrics (such as EIGRP). RIPv1 and RIPv2 use only the hop count to determine the best path (the path with the smallest hop count is preferred).
What is metric in OSPF?
The OSPF metric for a route is the sum of the interface costs for all outgoing interfaces in the route. By default, a router’s OSPF interface cost is actually derived from the interface bandwidth: The faster the bandwidth, the lower the cost.
What is the metric of OSPF?
By default, OSPF assigns a default cost metric of 1 to any link faster than 100 Mbps, and a default cost metric of 0 to the loopback interface (lo0). No bandwidth is associated with the loopback interface. This means that all interfaces faster than 100 Mbps have the same default cost metric of 1.
What is the default variance of EIGRP?
EIGRP provides a mechanism to load balance over unequal cost paths throungh Variance Command. Variance is a number (1 to 128), multiplied by the local best metric then includes the routes with the lesser or equal metric. The default Variance value is 1, which means equal-cost load balancing.
What is the default route in a routing table?
A default route is the route that takes effect when no other route is available for an IP destination address. If a packet is received on a routing device, the device first checks to see if the IP destination address is on one of the device’s local subnets.
What is OSPF metric?
IS IS routing protocol metric?
The Routing Information Protocol (RIP) always uses hop count as the metric. A hop means going through another router. Hop count is the number of routers the router has to go through to get to the destination network.
What is a metric value?
A metric is a value that’s assigned to an IP route for a particular network interface. It identifies the cost that’s associated with using that route. For example, the metric can be valued in terms of link speed, hop count, or time delay.
What is the default hop count of OSPF?
OSPF protocol has no limitations in hop count, unlike RIP protocol that has only 15 hops at most.
Does EIGRP load balance by default?
EIGRP load balancing By default, EIGRP supports equal-cost load balancing over four links. Equal-cost means that multiple routes must have the same metric to reach the destination, so that router can choose to load balance across equal cost links.
How does EIGRP calculate metric?
Bandwidth: The bandwidth value used in the EIGRP metric calculation is determined by dividing 10,000,000 by the bandwidth (in kbps) of the slowest link along the path to the destination network. Delay: Unlike bandwidth, which represents the “weakest link,” the delay value is cumulative.
What is metrics of a protocol?
Metrics are cost values used by routers to determine the best path to a destination network. Several factors help dynamic routing protocols decide which is the preferred or shortest path to a particular destination. These factors are known as metrics and algorithms.
Why routing protocols use metrics?
A metric is a measurable value that is assigned by the routing protocol to different routes based on the usefulness of that route. In situations where there are multiple paths to the same remote network, the routing metrics are used to determine the overall “cost” of a path from source to destination.