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NE20E-S V800R010C10SPC500 Configuration Guide - MPLS 01

This is NE20E-S V800R010C10SPC500 Configuration Guide - MPLS
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Configuring an MPLS TE Tunnel Interface

Configuring an MPLS TE Tunnel Interface

An MPLS TE tunnel is established and managed on a tunnel interface. Therefore, the tunnel interface must be configured on the ingress of an MPLS TE tunnel.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run interface tunnel tunnel-number

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

  3. Run either of the following commands to configure the IP address of the tunnel interface:

    • To assign an IP address to the tunnel interface, run ip address ip-address { mask | mask-length } [ sub ]

      The primary IP address must be configured before the secondary IP address can be configured for the tunnel interface.

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

    NOTE:

    An MPLS TE tunnel is unidirectional; therefore, its peer address is irrelevant to traffic forwarding. A tunnel interface uses the local LSR ID as its IP address, without the need to be assigned an IP address.

  4. Run tunnel-protocol mpls te

    MPLS TE is configured as a tunnel protocol.

  5. Run destination ip-address

    The destination address of a tunnel is configured, which is usually the LSR ID of the egress.

    Various types of tunnels require specific destination addresses. If a tunnel protocol is changed to MPLS TE from another protocol, a configured destination address is deleted automatically and a new destination address needs to be configured.

  6. Run mpls te tunnel-id tunnel-id

    The tunnel ID is configured.

  7. (Optional) Run mpls te signalled tunnel-name tunnel-name

    The tunnel name carried in RSVP signaling messages is configured.

    • Facilitate TE tunnel management.

    • Allow a Huawei device to be connected to a non-Huawei device that uses a tunnel name that differs from the tunnel interface name.

  8. (Optional) Run mpls te bandwidth ct0 ct0-bw-value

    The bandwidth is configured for an MPLS TE tunnel.

    The bandwidth used by the tunnel cannot be higher than the maximum reservable link bandwidth.

    The bandwidth used by a tunnel does not need to be set if only a path needs to be configured for an MPLS TE tunnel.

  9. (Optional) Run mpls te path explicit-path path-name [ secondary ]

    An explicit path is configured for an MPLS TE tunnel.

    An explicit path does not need to be configured if only the bandwidth needs to be set for an MPLS TE tunnel.

  10. (Optional) Run mpls te resv-style { ff | se }

    A resource reservation style is configured.

    The SE style is used in the make-before-break scenario, and the fixed filter (FF) style is used in a few scenarios.

  11. (Optional) Run mpls te cspf disable

    Disable constraint shortest path first (CSPF) calculation when a TE tunnel is being established.

    NOTE:

    The mpls te cspf disable command is only applicable in the inter-AS VPN Option C scenario. In other scenarios, running this command is not recommended.

  12. Run commit

    The configurations are committed.

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Updated: 2019-01-03

Document ID: EDOC1100055103

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