# mdl string

#### Syntax

mdl string { eic eicValue | fic ficValue | lic licValue | unit unitValue | pfi pfiCode |
port portValue | generator genValue }

no mdl string { eic | fic | lic | unit | pfi | port | generator }

#### Release Information

Command introduced before JunosE Release 7.1.0.

#### Description

Allows you to specify an MDL message on a T3 interface as defined in the ANSI T1.107a-1990 specification. The no version restores the default value to the specified MDL message or to all MDL messages.

#### Options

- eicValue—Equipment identification code; 1–10 characters; default value is the null value.
- ficValue—Frame identification code; 1–10 characters; default value is the null value.
- licValue—Line identification code; 1–11 characters; default value is the null value.
- unitValue—Unit identification code; 1–6 characters; default value is the null value.
- pfiCode—Facility identification code to send in the MDL path message; 1–38 characters; default value is the null value.
- portValue—Equipment port number to send in the MDL idle signal message; 1–38 characters; default value is the null value.
- genValue—Generator number to send in the MDL test signal message; 1–38 characters; default value is the null value.

#### Mode

Controller Configuration