# ip igmp robustness

#### Syntax

ip igmp robustness numberOfMessages

no ip igmp robustness

#### Release Information

Command introduced before JunosE Release 7.1.0.

#### Description

Specifies the number of times that the router sends IGMP group-specific queries before declaring a group to no longer have any members on an interface. The no version restores the default value, 3.

#### Options

- numberOfMessages—Number of times that the router sends IGMP group-specific queries in the range 1–4

#### Mode

Interface Configuration, Profile Configuration