Sorry, I cant compute that sentence. ;)
Can you explain what you wanna know or what you dont understand?
Eigrp load-shares over multiple links with equal costs. When you use the variance-command you make eigrp load-share over unequal links as well.
Example. Router A and Router B has 2 parallell connections to each other. For simplicity lets say that one of the links has a thruput of 100Mbps and the other one has a thruput of 25Mbps. By default it sends all traffic over the 100Mbps-link and nothing on the other. If you add "variance 4" you simply tells eigrp to load-share the fastest link with parallell links that are as small as one fourth of the fastest link (100/4=25), that is links down to as little as 25Mbps. If the second link was 20Mbps "variance 4" wouldnt help since 20Mbps is less than 1/4 of 100Mbps, so you had to use "variance 5".
But all that is explained in the link I gave you.
/Jimmy
