Re: How many routers an OSPF or IS-IS area can have

rfc2329 may help you. 

       Parameter                    Responses   Min   Mode   Mean   Max
       _________________________________________________________________
       Max routers in domain        8           20    350    510    1000
       Max routers in single area   8           20    100    160    350
       Max areas in domain          7           1     15     23     60
       Max AS-external-LSAs         6           50    1K     2K     5K


                      Table 3: OSPF domain sizes deployed

On Thu, Jan 25, 2001 at 08:35:15AM -0600, David Wang wrote:
> Hi,
>
> I have a question about the size of the IS-IS and OSPF area. What is the
> guidelines in setting up the IS-IS or OSPF area? How many routers an area
> can have? What are the key facts to determine how many routers an area can
> have? router memory size? router interface bandwidth? or some other facts?
> Is there any quantitative relationship among various parameters?
>
> Thank you for your help!
>
> David