mpls te backup hot-standby overlap-path (Tunnel interface view)

Function

The mpls te backup hot-standby overlap-path command enables path overlapping function.

The undo mpls te backup hot-standby overlap-path command disables path overlapping function.

By default, the hot-standby path cannot coincide with the path of the primary LSP.

Format

mpls te backup hot-standby overlap-path

undo mpls te backup hot-standby overlap-path

Parameters

None

Views

Tunnel interface view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
mpls-te	write

Usage Guidelines

Usage Scenario

The path overlapping function can be configured for hot-standby CR-LSPs when there are limited network resources. This function allows a hot-standby CR-LSP to use some links of a primary CR-LSP and ensures that the hot-standby CR-LSP is established. The hot-standby and primary CR-LSPs cannot fully overlap.

Prerequisites

An MPLS TE tunnel has been created using the interface tunnel command.

MPLS TE has been configured as the protocol of the tunnel using the tunnel-protocol command.

Example

# Enable path overlapping function.

<HUAWEI> system-view
[~HUAWEI] mpls
[*HUAWEI-mpls] mpls te
[*HUAWEI-mpls] mpls rsvp-te
[*HUAWEI-mpls] quit
[*HUAWEI] interface tunnel 1
[*HUAWEI-Tunnel1] tunnel-protocol mpls te
[*HUAWEI-Tunnel1] destination 2.2.2.2
[*HUAWEI-Tunnel1] mpls te backup hot-standby
[*HUAWEI-Tunnel1] mpls te backup hot-standby overlap-path