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Hierarchy Level

  • For platforms with ELS:

  • For platforms without ELS:


Configure a primary link and secondary link on trunk ports. If the primary link fails, the secondary link automatically takes over without waiting for normal spanning-tree protocol convergence.

The remaining statements are explained separately. See CLI Explorer.

Required Privilege Level

system—To view this statement in the configuration.

system–control—To add this statement to the configuration.

Release Information

Statement introduced in Junos OS Release 9.0.

Hierarchy level [edit switch-options] introduced in Junos OS Release 13.2X50-D10 (ELS). (See Using the Enhanced Layer 2 Software CLI for information about ELS.)