Technical Documentation



fragment-threshold bytes;

Hierarchy Level

[edit class-of-service fragmentation-maps map-name forwarding-class class-name]

Release Information

Statement introduced before JUNOS Release 7.4.


For AS PIC link services IQ interfaces (lsq) only, set the fragmentation threshold for an individual forwarding class.


If you do not include this statement, the fragmentation threshold you set at the [edit interfaces interface-name unit logical-unit-number] or [edit interfaces interface-name mlfr-uni-nni-bundle-options] hierarchy level is the default for all forwarding classes. If you do not set a maximum fragment size anywhere in the configuration, packets are fragmented if they exceed the smallest MTU of all the links in the bundle.


bytes—Maximum size, in bytes, for multilink packet fragments.

Range: 80 through 16,320 bytes

Usage Guidelines

See Configuring Fragmentation by Forwarding Class.

Required Privilege Level

interface—To view this statement in the configuration.

interface-control—To add this statement to the configuration.

Published: 2010-04-15