R3303-HP 6600/HSR6600 Routers MPLS Command Reference Guide

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When using the undo mpls te ds-te ietf te-class command, make sure that the CT and preemption priority
of the TE class mapping to be restored to are not those of an existing TE class mapping.
After a TE class is modified, the device will notify the IGP to re-advertise the bandwidth information for
all TE interfaces, and will remove and then re-establish the CR-LSPs of the TE class on all TE interfaces.
Examples
# Associate TE class 7, CT 2, and preemption priority 3 in the IETF mode.
<Sysname> system-view
[Sysname] mpls
[Sysname-mpls] mpls te ds-te ietf te-class 7 class-type 2 priority 3
Related commands
mpls te ds-te mode
mpls te ds-te mode
Use mpls te ds-te mode to specify the DS-TE mode.
Use undo mpls te ds-te mode to restore the default.
Syntax
mpls te ds-te mode ietf
undo mpls te ds-te mode
Default
The DS-TE mode is prestandard.
Views
MPLS view
Default command level
2: System level
Parameters
ietf: Specifies the DS-TE mode as IETF.
Usage guidelines
Changing the DS-TE mode will remove all CR-LSPs on the device.
Examples
# Configure the DS-TE mode as IETF.
<Sysname> system-view
[Sysname] mpls
[Sysname-mpls] mpls te ds-te mode ietf
mpls te fast-reroute
Use mpls te fast-reroute to enable the Fast Reroute (FRR) function.
Use undo mpls te fast-reroute to disable FRR.