If we want to implement optical fibre ring to connect 5 offices in a radius of 6Kms, than how can we do it if we just have 3660 routers at all locations with serial port available.What all equipments we will require to implement the optical fibre rin...

Sir,I have got a network in which i have three links betweeen router A and B i.e Frame Relay,Vsat and ISDN dialup on PRI over the same FR cloud.I want to configur in such a way that the traffic flows over Frame Relay9Leased Line) in normal condition ...