Configuring Per-Flow Load-Balancing Information

By default, when there are multiple equal-cost paths to the same destination, the JUNOS software chooses one of the next-hop addresses at random. On routing platforms with the Internet Processor II application-specific integrated circuit (ASIC), you have two additional options. You can specify what information the routing platform uses for per-flow load balancing based on port data (instead of on source and destination IP addresses only). For aggregated Ethernet and aggregated SONET/SDH interfaces, you can load-balance based on the Multiprotocol Label Switching (MPLS) label information. For more information, see Configuring Load-Balance Per-Packet Action.