Expandable Resilient Networking (XRN) is a technology developed by 3COM for distributed core networks
no longer relies on a central control point, but is based on the principle of aggregation.With the principle of Expandable Resilient Networking (XRN), several connections
can be interconnected to form a logical connection for the purpose of increasing performance. TheXRN concept
is characterized byscalability, high redundancy and availability
. In the 3COM solution, a high-performance, scalable core backbone is implemented from the network management via the core switches.