[ no ] ip alwaysup
Command introduced before JUNOSe Release 7.1.0.
Forces the interface to appear as if it is up, regardless of the state of the lower layers. Use this command to reduce routing protocol topology changes on the router when the network attached to this link is single-homed. This command may be useful when the router is running routing protocols with very large routing tables that may take a long time to converge. The no version makes the interface appear in its current state.
Interface Configuration, Subinterface Configuration