No. of Shibboleth servers required for 6, 00, 000 users to authenticate.

[Nate Klingenstein]

That's a great point and resource considering Office 365 is the intended application, thanks.

The one thing I'd add to your response is that Microsoft has a very unique perspective on mobile client due to some implementation choices -- that is to say, they batter an IdP with requests.

I've heard of millions of assertions issued per day is not unusual for the modest-sized deployment mentioned for organizations that use Office 365 with mobile devices.

There's nothing inherent to mobile devices or protocols that would make the load greater, and typical application implementations may even lead to reduced IdP load as a session persists for much longer.

On Jun 11, 2013, at 1:38 , Randy Wiemer wrote:

> Microsoft has produced a capacity planning spreadsheet for Office 365 and ADFS.  The most interesting aspect to consider is the use of mobile devices.  They behave very differently from browsers.
>  
> http://www.microsoft.com/en-us/download/details.aspx?id=2278
>  
> You may find this relevant for sizing Shibboleth.
>  
> Randy
>