Hello,
Forwarding table load-balancing policy applies to :
1/ global routing table/GRT
2/ routing-instances of type "virtual-router" and "forwarding"
3/ It is also a prerequisite for multipath load-balance for routing-instances of type "vrf" where following additional knob is required for load-balancing along MPLS paths
set routing-instances BLAH routing-options multipath [vpn-unequal-path]
[1] and [2] are applicable for SRX in flow mode
[3] is applicable for SRX in packet mode
HTH
Thx
Alex