# ppp keepalive

#### Syntax

ppp keepalive [ seconds ]

no ppp keepalive

#### Release Information

Command introduced before JunosE Release 7.1.0.

#### Description

Specifies a keepalive value. The keepalive mechanism tracks the status of the connection. To restore the default of 30 seconds, enter ppp keepalive without a value. High-density mode is automatically selected when PPP is layered over ATM, tunnel, or PPPoE. Low-density mode is selected when PPP is layered over HDLC. The no version disables keepalive.

#### Options

- seconds—Keepalive timeout period, in the range 30–64800 seconds for high-density mode, 1–64800 seconds for POS uplink interfaces in low-density mode, or 10–64800 seconds for all other HDLC interfaces in low-density mode; default value is 30 seconds

#### Mode

Interface Configuration, Profile Configuration, Subinterface Configuration