Statement introduced in Junos OS Release 19.4R1.
Configure a fabric path optimization mode to optimize the fabric path of the traffic flowing over Abstracted Fabric (af) interfaces between two guest network functions (GNFs). After configuring fabric path optimization, you can use the command show interfaces af-interface-name in GNF to view the number of packets that are currently flowing on the optimal / non-optimal path.
You must configure the collapsed-forward statement on both the peer guest network functions (GNFs) on the Abstracted Fabric interface for the commit to be successful.
The collapsed-forward statement is configured at the Abstracted Fabric interface level. All logical interfaces on the Abstracted Fabric interface inherit this configuration.
We strongly recommend that you do not configure the collapsed-forward statement on GNFs that have a mix of supported and unsupported MPCs (MPCs that support fabric path optimization and MPCs that do not) to avoid any erratic behavior.
Required Privilege Level
view-level—To view this statement in the configuration.
control-level—To add this statement to the configuration.