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Supported Platforms
clear-dont-fragment-bit
Syntax
clear-dont-fragment-bit;
Hierarchy Level
[edit interfaces gr-fpc/pic/port unit logical-unit-number],[edit logical-systems logical-system-name interfaces gr-fpc/pic/port unit logical-unit-number]
Release Information
Statement introduced before Junos OS Release 7.4.
Description
Clear the Don’t Fragment (DF) bit on all IP version 4 (IPv4) packets entering the generic routing encapsulation (GRE) tunnel on Adaptive Services (AS) or Multiservices interfaces. If the encapsulated packet size exceeds the tunnel maximum transmission unit (MTU), the packet is fragmented before encapsulation. The statement is supported only on MX Series routers and all M Series routers except the M320 router.
Usage Guidelines
See Enabling Fragmentation on GRE Tunnels.
Required Privilege Level
interface—To view this statement in the configuration.
interface-control—To add this statement to the configuration.
