VCAP_IS2_ACT_PORT_MASK
[VCAP_IS2_ACT_PORT_MASK] = { 20, 6},
[VCAP_IS2_ACT_PORT_MASK] = { 22, 10},
vcap_action_set(vcap, data, VCAP_IS2_ACT_PORT_MASK, a->port_mask);
[VCAP_IS2_ACT_PORT_MASK] = { 20, 11 },