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Hierarchy Level

Release Information

Statement introduced in Junos OS Release 17.3.


Enable ECMP support for reverse traffic. In this case, Junos OS for SRX Series devices and vSRX instances use a hash algorithm to determine the interface to use for reverse traffic in a flow. This process is similar to asymmetric routing in which a packet traverses from a source to a destination in one path and takes a different path when it returns to the source.

If you do not enable this feature, the software selects a route in the ECMP set to the incoming interface for reverse traffic, which is the default behavior.

Required Privilege Level

security—To view this in the configuration.

security-control—To add this to the configuration.