Method for establishing alternative routes in a telecommunication network

摘要

The present invention relates to a method for establishing alternative routes in a telecommunication network, especially in case of transmission failure, and more specifically in a telecommunication network comprising transmission links for duplex operation, less expensive and more reliable than similar prior art methods, it is according to the invention suggested a method which is characterized by: arranging said network in one or more initial rings including duplex operation between the nodes included in each ring; and by arranging said nodes such as to let all time slots be transmitted in one and the same direction (OK direction) of the ring in question whilst maintaining the opposite direction (ERROR direction) as a standby or redundancy path.