Using Iterators in Model Builder with Network Analyst?

Discussion created by ericlitt on Aug 31, 2011
Latest reply on Sep 20, 2011 by therealjimshady
I have thousands of calculations that I need to do either an OD Cost Matix or Route layer. However, they are not at the same starting location nor are they at the same ending location. If I group the ending locations (the number of ending locations is smaller than the starting locations) I would still have over 150 calculations to perform. Therefore my question is how can I use Model Builder with Iterations to simplify this task? how would I even set up the model? what kind of pre work set up would I need? My information is formated like this....

Start point ,  End point
    A          ,      1
    B          ,      2
    C          ,      1
    A          ,      3