This read-write value tells PXM's connection routing logic how important this connection is relative to others when choosing which connections to route or reroute during network changes. An administrator raises the priority on business-critical circuit-emulation connections so they are favored over lower-priority connections when path selection or rerouting decisions must be made. For example, assigning a routing priority of 1 (highest) to a critical E1 circuit ensures it is preferred over connections left at a lower priority value when a shared trunk experiences a failure requiring rerouting.