What does the variance command do? The variance command is a multiplier and has a default value of 1. Using variance is a two-step process: The router will multiple the Feasible Distance of the route
What does the variance command do?
The variance command is a multiplier and has a default value of 1. Using variance is a two-step process: The router will multiple the Feasible Distance of the route by the variance value. Any feasible successor with a metric less than that new value will be entered into the routing table.
What is variance in CCNA?
Variance is a term that is used in the EIGRP routing protocol. The variance command lets you enable load balancing over feasible successors, achieving unequal cost load balancing. …
What is EIGRP unequal cost load balancing?
One of the advantages of EIGRP is that, unlike OSPF and many other routing protocols, EIGRP also supports unequal-cost load balancing. You can set up your router to load balance over links with different metric to reach the destination. To accomplish unequal-cost load balancing, the variance command is used.
What is EIGRP and how does it work?
Enhanced Interior Gateway Routing Protocol (EIGRP) is an advanced distance-vector routing protocol that is used on a computer network for automating routing decisions and configuration. EIGRP is used on a router to share routes with other routers within the same autonomous system.
How does EIGRP use variance?
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.
How does EIGRP calculate cost?
It is calculated by adding the advertised/reported distance advertised by the neighbor and the cost calculated by that current router to reach the neighbor. successor: It is the (lowest) best path to reach to any specific destination network. These are stored in routing table.
How does Eigrp use variance?
What is the advantage of unequal cost load balancing?
the capability to do unequal-cost load balancing, the capability to load-balance traffic over multiple paths that do not have the same metric to the destination. The advantage of this feature is that it offers the flexibility of load balancing, thus making more efficient use of the link.