mpls te cspf disable

Function

The mpls te cspf disable command disables CSPF calculation when an LSP is being established in a TE tunnel.

The undo mpls te cspf disable command enables CSPF calculation when an LSP is being established in a TE tunnel.

By default, CSPF calculation is enabled when an LSP is being established in a TE tunnel.

Format

mpls te cspf disable

undo mpls te cspf disable

Parameters

None

Views

Tunnel interface view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

After CSPF is enabled globally, CSPF calculation is triggered each time an LSP is being established in a TE tunnel. In the inter-AS VPN-OptionC scenario, no IGP is configured between two ASs, causing the TEDB to fail to be generated. As a result, CSPF calculation fails to be performed, and inter-area TE tunnels fail to be set up. Run the mpls te cspf disable command on the configured TE tunnel interface to disable CSPF calculation in the TE tunnel, and set up inter-area TE tunnels using direct routes or static routes.

Precautions

After the mpls te cspf disable command is run, CR-LSP selection functions, such as hop limit, CSPF tie-breaking, and SRLG, will become invalid.

Example

# Disable CSPF calculation when an LSP is being established in a TE tunnel.

<HUAWEI> system-view
[HUAWEI] interface tunnel 1
[HUAWEI-Tunnel1] tunnel-protocol mpls te
[HUAWEI-Tunnel1] mpls te cspf disable
[HUAWEI-Tunnel1] mpls te commit