The value of tRPAdminPSDefActnAigpMetricVal specifies the value to
add or set for the route AIGP(Accumulated IGP) metric.
When the value of tRPAdminPSDefActionAigpMetric is set to 'none(1)'
or 'useIgp(4)', the value of tRPAdminPSDefActnAigpMetricVal is
ignored.