BDC; whatz the limit ?

Hi,
As many you can/have.

There is a limit, but I am almost positive the number is around 10,000. Microsoft says that to determine the number of BDC's you need is based on the number of users. Microsoft recommends one BDC support 2,000 users. This is fine considering a 486DX2 with 32MB of RAM can, on average, perform at least 10 logons per minute, however if everyone in your company arrives at 9:00 on the dot and log on (except for the helpful people who arrive half an hour late) there will be a surge of logon requests to deal with, resulting in large delays. Remember the more powerful the processor, the more logons (for a Pentium 133, would be able to logon at least 30 people).

I don't remember the exact number, you can find it in Microsoft's whitepapers on NT domain setup. There is a practical upper limit which is around 2000 BDCs per domain. More than this and too much bandwidth is eaten in exchanging data between DBC and the PDC. I have had as many as 50 on my WAN and could not point to their presence as a factor in poor network performance.

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