I have two routers that have problems with the fans. It is a c3725 and c3845 (Fan 3).I would like to know/confirm what are the products of these fans:c3845: CISCO3845FANASSY= Cisco 3845 Fan Assembly and Bezel c3725:  CK-3725-FAN (external product)In ...

I need to install an ATM module  in a 3925 router. I would like to know if this card is that I have to buy with the transceiver(SFP)?Will use a fiber cable LC LC singlemode fiber optic.Module: NM-1A-OC3-POM Transceiver :SFP-OC3-IR1

I have a Cisco 2811, when he boot up, the router stops the message: Initializing memory for ECC. Does anyone know what can be?

What should be the cause of this?The interface configuration is correct.Router#show interface serial 0Serial0 is up, line protocol is down Hardware is QUICC Serial Internet address is 10.1.1.2/24 MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec, rely 255...