# mpls rsvp authentication

#### Syntax

[ no ] { ip | mpls } rsvp authentication

#### Release Information

Command introduced before JunosE Release 7.1.0.

#### Description

Enables MD5 authentication for RSVP on the interface. Enable authentication after configuring the authentication key. The router generates an error message and discards any RSVP messages if you enable authentication before configuring the authentication key, or remove the key while authentication is still enabled. The no version disables authentication.

#### Options

- ip—Specifies alternative keyword for compatibility with non–E Series implementations
- mpls—Specifies JunosE MPLS implementation

#### Mode

Interface Configuration