srv6-te-policy bfd no-bypass

Function

The srv6-te-policy bfd no-bypass command enables the BFD no-bypass function for all SRv6 TE Policies.

The undo srv6-te-policy bfd no-bypass command disables the BFD no-bypass function for all SRv6 TE Policies.

By default, the BFD no-bypass function is not enabled for any SRv6 TE Policy.

Format

srv6-te-policy bfd no-bypass

undo srv6-te-policy bfd no-bypass

Parameters

None

Views

Segment routing IPv6 view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
srpolicy	write

Usage Guidelines

Usage Scenario

Run the srv6-te-policy bfd no-bypass command to enable the BFD no-bypass function for all SRv6 TE Policies so that BFD for SRv6 TE Policy packets are not transmitted over local protection paths such as TI-LFA and TE FRR paths.

During BFD for SRv6 TE Policy deployment, if the segment list of the primary candidate path fails and a local protection path (for example, a TI-LFA or TE FRR path) exists, the BFD session remains Up, and data traffic is diverted to the TI-LFA or TE FRR path. However, the performance such as the bandwidth/latency of the TI-LFA or TE FRR path may be unstable, preventing the path from meeting the strict SLA requirements of high-value private line services. To resolve this problem, disable BFD from using the local protection path. If the segment list of the primary candidate path fails, the BFD session status changes to Down, and the candidate path status changes to Down, triggering traffic to be switched to the backup candidate path or another SRv6 TE Policy.

Example

# Enable BFD no-bypass for all SRv6 TE Policies.

<HUAWEI> system-view
[~HUAWEI] segment-routing ipv6
[*HUAWEI-segment-routing-ipv6] srv6-te-policy bfd no-bypass