This read-create object holds the VLAN priority value to be pushed onto or swapped into the S-TAG (service/outer tag) on this FlowPoint, applicable only when the corresponding S-Tag control is set to push or swaptag. An administrator sets this to control the priority marking carried in the outer tag, distinct from whatever priority is used on the inner C-Tag. For example, setting a specific S-Tag priority here lets an operator ensure the provider-facing outer tag reflects the correct QoS marking even if the customer's inner C-Tag priority differs.