Number of PPPOE session support by Cisco Router

Dear , I am using cisco 2801 and 3845 as broadband access router. I am using PPPOE  to get connected by user to my network Can you please tell me or send me some document/link stating maximum number of pppoe sessions using this router. Thanks. Regards: Aamir Inayat Solution: Number of PPPOE session support by Cisco Router Hi, 1200-96=1104 more interfaces :) But if you want to use more interface please upgrade your memory