# lsp-mtu

#### Syntax

lsp-mtu bytes

no lsp-mtu

#### Release Information

Command introduced before JunosE Release 7.1.0.

#### Description

Sets the maximum size of an IS-IS link-state packet generated by the software. The no version restores the default value, 1497 bytes.

#### Options

- bytes—Number in the range 128–9180; the MTU size in bytes; default value is 1497

#### Mode

Router Configuration