# ip rsvp authentication key

#### Syntax

{ ip | mpls } rsvp authentication [ key authkey ]

no { ip | mpls } rsvp authentication [ key [ authkey ] ]

#### Release Information

Command introduced before JunosE Release 7.1.0.

#### Description

Assigns a key for MD5 authentication between RSVP peers in implementations on routers from other vendors. See the mpls rsvp authentication key command for a complete description and syntax.

#### Mode

Interface Configuration