Configuring a DS-TE Mode

You can configure an MPLS TE tunnel to work a DS-TE mode, either IETF mode or non-IETF mode.

Context

Perform the following steps on each LSR in a DS-TE domain:

If bandwidth constraints are configured for a tunnel, the IETF and non-IETF modes cannot be switched to each other.

Procedure

Run system-view
The system view is displayed.
Run mpls
The MPLS view is displayed.
Run mpls te ds-te mode { ietf | non-ietf }
A DS-TE mode is specified.
Run commit
The configuration is committed.

Follow-up Procedure

The IETF mode and non-IETF mode can be switched between each other on the NetEngine 8000 F. Table 1 describes switching between DS-TE modes. The arrow symbol (—>) indicates "switched to."

**Table 1** Switching between DS-TE modes
Item	Non-IETF—>IETF	IETF—>Non-IETF
Changes in bandwidth constraint models	N/A	RDM—>N/A MAM—>N/A
Bandwidth change	BC0 bandwidth values remain.	BC0 bandwidth values remain.
TE-class mapping table	If the TE-class mapping table is not configured, the default TE-Class mapping table is used. Otherwise, the configured one is used. NOTE: For information about the default TE-class mapping table, see Table 1.	No TE-class mapping table is used. A TE-class mapping table is not deleted once it is configured. If no TE-Class mapping table is configured, the default TE-Class mapping table is deleted.