# ip pim spt-threshold

#### Syntax

[ no ] ip pim spt-threshold { 0 | nonzero_integer | infinity } [ group-list ipAccessList ]

#### Release Information

Command introduced before JunosE Release 7.1.0.

#### Description

Specifies the network configuration that PIM sparse mode uses when a source starts sending multicast messages. The no version restores the default value, 0.

#### Options

- 0—Configures PIM sparse mode to switch to an SPT when a source begins to send multicast messages
- nonzero_integer—Integer in the range 1–4294967294; prevents PIM sparse mode from switching from a shared tree to an SPT
- infinity—Prevents PIM sparse mode from switching from a shared tree to an SPT
- ipAccessList—Name of the IP access list that specifies the groups to which the threshold applies

#### Mode

Global Configuration