A router supports redirection of IPv4 or IPv6 traffic arriving on a Layer 3 interface to a different routing instance (GRT or VRF). An OF controller can rely on this functionality and program PBR actions for GRT/VRF steering for H-OFS instances with the switch-defined-cookie command enabled using the following OF encoding:
flow_mod:
instruction type: OFPIT_WRITE_ACTIONS/OFPIT_APPLY_ACTION,
action type: OFPAT_OUTPUT,
port= SR OS LOGICAL port encoding GRT or VPRN Service ID as described in the SR OS H-OFS logical port section.
Because a 24-bit value is used to encode the VPRN service ID in the logical port, redirection to a VPRN service with a service ID above that range is not supported.