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NE40E V800R010C00 Configuration Guide - MPLS 01

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Configuring a Tunnel Interfaces

Configuring a Tunnel Interfaces

Before creating a DS-TE tunnel, create a tunnel interface and configure tunnel attributes in the view of the tunnel interface.


Perform the following steps on the ingress of a TE tunnel to be established:


  1. Run:


    The system view is displayed.

  2. Run:

    interface tunnel interface-number

    A tunnel interface is created, and the tunnel interface view is displayed.

  3. (Optional) Run:

    description text

    The tunnel description is configured.

  4. (Optional) Run either of the following commands to assign an IP address to the tunnel interface:

    • To configure an IP address, run:
      ip address ip-address { mask | mask-length } [ sub ]

      The secondary IP address of the tunnel interface can be configured only after the primary IP address is configured.

    • To configure the tunnel interface to borrow the IP address of another interface, run:
      ip address unnumbered interface interface-type interface-number

    To forward traffic, the tunnel interface must have an IP address. An MPLS TE tunnel, however, is unidirectional, and o peer address exists. Therefore, it is unnecessary to assign an IP address to a tunnel interface. A tunnel interface usually borrows the loopback address, which functions as the LSR ID of the local node.

  5. Run:

    tunnel-protocol mpls te

    MPLS TE is configured as a tunneling protocol.

  6. Run:

    destination ip-address

    The LSR ID of the egress is configured as the destination address of the tunnel.

    By default, a GRE tunnel is used. As each type tunnel has specific a requirement for a destination address, when the tunnel protocol is changed to MPLS TE, the destination address configured using the destination command is automatically deleted. You need to reconfigure it.

  7. Run:

    mpls te tunnel-id tunnel-id

    A tunnel ID is set.

  8. Run:

    mpls te signal-protocol { cr-static | rsvp-te }

    A signaling protocol is configured for a tunnel.

  9. (Optional) Run:

    mpls te priority setup-priority [ hold-priority ]

    The tunnel priorities are set.

    A smaller value indicates a higher priority.

    The holding priority must be higher than or equal to the setup priority. If no holding priority is set, its value is the same as that setup priority.If the bandwidth and priority type of combination is not TE-Class-Mapping table, LSP can not be established.

  10. Run:


    The configuration is committed.

    Each time you change an MPLS TE parameter, run the commit command to commit the configuration.

Updated: 2018-07-12

Document ID: EDOC1100028530

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