64 BGP add-path

This feature allows BGP to advertise 64 add-path routes and a second-best ECMP path as a backup in addition to the multiple ECMP paths. 

To advertise all add-paths, up to 64 add-paths or only equal-cost paths, include the path-selection-mode statement at the [edit protocols bgp group group-name family name add-path send] hierarchy level. 

You cannot enable both multipath and path-selection-mode at the same time. To advertise a second best ECMP path as a backup path in addition to the multiple ECMP paths include the include-backup-path backup_path_name statement at the [edit protocols bgp group group-name family name add-path send] hierarchy level.