globalNetConnect VSS -type pgpin -pin gnd -inst * 
globalNetConnect VDD -type pgpin -pin vdd -inst * 
setAddRingMode -ring_target core_ring -extend_over_row 0 -ignore_rows 0 -avoid_short 0 -skip_crossing_trunks none -stacked_via_top_layer metal3 -stacked_via_bottom_layer metal1 -via_using_exact_crossover_size 1 -orthogonal_only true -skip_via_on_pin {  standardcell } -skip_via_on_wire_shape {  noshape }
addRing -nets {VDD VSS} -type core_rings -follow io -layer {top metal1 bottom metal1 left metal2 right metal2} -width {top 3.6 bottom 3.6 left 3.6 right 3.6} -spacing {top 1.8 bottom 1.8 left 1.8 right 1.8} -offset {top 1.8 bottom 1.8 left 1.8 right 1.8} -center 0 -extend_corner {} -threshold 0 -jog_distance 0 -snap_wire_center_to_grid None
setSrouteMode -viaConnectToShape { padring ring stripe blockring blockpin noshape blockwire corewire followpin iowire noshape }
sroute -connect { blockPin padPin padRing corePin floatingStripe } -layerChangeRange { metal1(1) metal3(3) } -blockPinTarget { nearestTarget } -padPinPortConnect { allPort oneGeom } -padPinTarget { nearestTarget } -corePinTarget { firstAfterRowEnd } -floatingStripeTarget { blockring padring ring stripe ringpin blockpin followpin } -allowJogging 1 -crossoverViaLayerRange { metal1(1) metal3(3) } -nets { VDD VSS } -allowLayerChange 1 -blockPin useLef -targetViaLayerRange { metal1(1) metal3(3) }