I want to run/setup FrameRelay in my home lab. I've the following routers,
3640,2611,2501 & 1700.
I want 3640 to be my Frameswitch, however it doesn't have Serial interface, so i wanted to buy it & that's where i got confused. Following are the serial modules available for 36xx series. which one should I go for?
NM-16A - 16 port high-density async network module
NM-32A - 32 port high-density async network module
NM-4T - Four-port serial network module.
NM-4A/S - Four-port async/sync serial network module.
I believe for FrameRelay we can use any router with 2 or more serial interfaces (for more connectivity). Im new, if its wrong, correct me please...