# slep

#### Description

Point-to-Point Protocol layer

#### Emergency

None

#### Alert

None

#### Critical

Startup interface out of resources failure

#### Error

Remove or unbind interface failure; unknown or missing lower binding failure

#### Warning Log

Attempt to set characteristics with invalid value

#### Notice Log

None

#### Info

Hardware state change notification

#### Debug

None

#### Filter

serial interfaceSpecifier

- serial—Logs SLEP events for a specific serial Cisco-HDLC interface
- interfaceSpecifier—Identifier for a serial Cisco-HDLC interface

  | Note: For information about interface types and specifiers, see Interface Types and Specifiers in JunosE Command Reference Guide.