If EIGRP has equal cost paths to a destination network it will install both of them in the routing table and use them both. This is the same behaviour as other IGP's.
But EIGRP can also load balance across unequal cost paths as well. It it is all to do with the metric's of the routes. So for example
Router A has two routes to network Z. The first route has a metric of 1000, the second has a metric of 2000. Under normal operations only the route with the metric of 1000 will be installed in the routing table.
However, if you want to use both links then you can use the variance command. The variance is a multiplier so if the best metric is 1000 a and the second best is 2000 then the multiplier will be 2 ie 2 x 1000 = 2000.
Then EIGRP will load balance across both links at a 2:1 ratio.
Note that for a route with a lesser metric to be used for load-balancing with the variance command the route must be a feasible successor already in the EIGRP topology table.
just go for routing table and find out the lowest level metrics or cost and then multiply by the integer which should be equal or greater than the maximum cost.... for example... you have three link of verious cost like
5,9 and 14... normally routing protocol prefer the lowest cost pasth so here 5 is the best path for the routing protocol... so only path with cost5 will come in to the routing table and used for routing... but when you want to use two link which is of cost 5 and 9 then you need to go for veriance command at that time you have to go for the veriance of 2 as lowest cost(5)X veriance(2)=10... so here in routing table you will have all the path with the cost below the 10 so in our case its path with cost 5 and 9 will apear in the routing table... if you want all the three path for the loadbalancing then you have to go for the variance of 3... so now lowest cost(5)X variance(3)=15... it means all the path with the cost lower then 25 will come in to the routing table... so in our case you will have 5,9 and 14 cost path in your routing table... so you can do it by your self by finding the lowest cost and then multiply by appropriate variance integer...
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.