Network system and method for improving routing capability

A method for providing network services to a user site, utilizing a network system including a computer, a processor, memory, and a plurality of Layer 3 devices distributed at a plurality of nodes of the network system along a Layer 2 backbone for connecting the user site with a predetermined destination, the computer comprising and at least one computer readable medium storing thereon computer code which when executed by the at least one computer causes the at least one computer to at least:

• measure performance of a plurality of paths that connect the plurality of Layer 3 devices, to the predetermined destination;
• and
• select a particular path from the plurality of paths to perform packet transmission based on the measured performance of the plurality of paths based on one or more criteria.

A non-transitory computer-readable recording medium for storing a computer program that executed on a computer for providing network services to a user site, utilizing a network system including a computer, a processor, memory, and a plurality of Layer 3 devices distributed at a plurality of nodes of the network system along a Layer 2 backbone for connecting the user site with a predetermined destination, the program storing thereon computer code which when executed by the at least one computer causes the at least one computer to at least:

• measure performance of a plurality of paths that connect the plurality of Layer 3 devices, to the predetermined destination;
• and
• select a particular path from the plurality of paths to perform packet transmission based on the measured performance of the plurality of paths based on one or more criteria.