Max. OSPF Areas per Router ?

depends.

1) how many routers are in the areas 2) stub? 3) totally stubby? 4) volatile network? 5) NPE-G1s? 6) large routing tables?

There are no absolutes in networking....

Hi,

I agree and I do understand your remarks. It's just a lot of variables I don't yet know myself. Actually I'm kind of looking for a guidelines to help me to make a better design evaluation for a particular customer. The current OSPF network is fairly unstructured and does not cope with new requirements such as additional backup links. In the new design the customer wants a particular router to be a member of several areas (>50). When I saw this design, I was just uncertain whether the router can cope with it and what platform this might require. So far I haven't found any area restriction just recommondations on how many routers one should not exceed per area.

Roland

We have around 200 in one area, 2600 to GSR and no problems.

One router that's in more than 50 areas? That's insanity. You can get away with four areas on a 7500 even in a decent size network. But summarization from other areas is a must. And it has to be a stable network. What kind of people design networks that require a router to be in 50 areas? (I'm excluding class carrier boxes like Shasta's that can virtualize routing tables)