(Optional) Disabling a Device from Forwarding Unknown TLVs

Procedure

1. Run system-view

   The system view is displayed.

2. Run mpls ldp

   MPLS LDP is globally enabled.

3. Run propagate mapping unknown-tlv disable

   A local device is disabled from forwarding unknown TLVs.

   Consequently, upon receipt of such TLV information, an upstream device cannot handle the unknown TLV information, which causes problems. To prevent the problems, run the propagate mapping unknown-tlv disable command on the local device to disable this device from forwarding unknown TLV information to the upstream device.

4. Run commit

   The configuration is committed.