Cisco CRS User Manual

tunnel dfbit disable (IP)
To allow fragmentation by configuring the DF bit setting in the tunnel transport header, use the tunnel dfbit
disable command in the interface configuration mode. To return to the default DF bit setting, use the no form
of this command.
tunnel dfbit disable
no tunnel dfbit disable
Syntax Description
This command has no keywords or arguments.
Command Default
The tunnel transport header is encapsulated with the DF bit set.
Command Modes
Interface configuration
Command History
ModificationRelease
This command was introduced.Release 3.9.0
Usage Guidelines
Task ID
OperationsTask ID
read, writetunnel
read, writeinterface
Examples
The following example shows how to set the encapsulation mode of the tunnel interface:
RP/0/RP0/CPU0:router# configure
RP/0/RP0/CPU0:router(config)# interface tunnel-ip 1
RP/0/RP0/CPU0:router(config-if)# tunnel dfbit disable
Cisco IOS XR System Security Command Reference for the Cisco CRS Router, Release 4.1
144 OL-24740-01
IPSec Commands
tunnel dfbit disable (IP)

Cisco CRS Specifications

General

Operating System	Cisco IOS XR
Product Type	Core Router
Form Factor	Modular Chassis
Dimensions	Varies by chassis type
Weight	Varies by chassis type
Architecture	Distributed
Switch Fabric	Multi-stage
Interface Support	Ethernet, SONET/SDH, OTN
Interfaces/Ports	Varies by line card
Port Density	Varies by line card
Routing Protocol	BGP, IS-IS, OSPF, MPLS
Management	CLI, SNMP
Power Supply	Redundant, hot-swappable
Cooling	Redundant, Hot-swappable Fan Trays
Supported Protocols	IPv4, IPv6, MPLS
Management Interfaces	Ethernet, console
Security Features	ACLs