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# mpls rsvp signalling hello

#### Syntax

{ ip | mpls } rsvp signalling hello
[ refresh { interval helloInterval | misses helloMisses } ]

{ no | default } { ip | mpls } rsvp signalling hello

#### Release Information

Command introduced in JUNOSe Release 7.3.0.

#### Description

In Global Configuration mode, turns on or configures RSVP-TE hello support for all RSVP-TE interfaces on the current virtual router. Automatically creates RSVP-TE or MPLS on the current virtual router if they do not yet exist there. The no version turns off hello support on the current VR. The default version restores the default configuration, in which RSVP hello support is not enabled.

In Interface Configuration mode and Subinterface Configuration mode, turns on or configures RSVP-TE hello support on the current interface, and overrides the global configuration. Automatically creates RSVP-TE or MPLS on the current virtual router if they do not yet exist there. This command also creates RSVP-TE on the interface if it is not configured there. The no version turns off hello support on the current interface. The default version restores the default configuration, in which RSVP hello support is not enabled, and also restores inheritance of the configuration values from the global configuration..

#### Options

- ip—Specifies alternative keyword for compatibility with non–E-series implementations
- helloInterval—Number of milliseconds specifying the interval at which hellos are sent, in the range 1000–60000; default value is 10000
- helloMisses—Number of RSVP-TE hello messages from a peer that can be missed before that hello adjacency peer is considered to be down, in the range 4–10; default value is 4

#### Mode

Global Configuration, Interface Configuration, Subinterface Configuration

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