# ipv6 pim spt-threshold

#### Syntax

[ no ] ipv6 pim spt-threshold { 0 | nonZeroInteger | infinity }
[ group-list ipv6AccessList ]

#### 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
- nonZeroInteger—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
- ipv6AccessList—Name of the IPv6 access list that specifies the groups to which the threshold applies

#### Mode

Global Configuration