bestroute as-path-ignore

Function

The bestroute as-path-ignore command configures BGP to ignore the AS_Path attribute when it selects the optimal route.

The undo bestroute as-path-ignore command restores the default configuration.

By·default,·BGP·uses·the·AS_Path·attribute·as·one·of·route·selection·rules.

Format

bestroute as-path-ignore

undo bestroute as-path-ignore

Parameters

None

Views

BGP-labeled VPN instance IPv4 address family view, BGP-VPN instance IPv4 address family view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
bgp	write

Usage Guidelines

Usage Scenario

After the bestroute as-path-ignore command is used, BGP does not compare the AS path attributes of routes (including the AS_Path length and content).

Configuration Impact

After the bestroute as-path-ignore command is run, the AS_Path attribute is not used as one of the BGP route selection rules.

Example

# Configure BGP to ignore the AS_Path attribute when selecting the optimal route.

<HUAWEI> system-view
[~HUAWEI] ip vpn-instance vpna
[*HUAWEI-vpn-instance-vpna] ipv4-family
[*HUAWEI-vpn-instance-vpna-af-ipv4] route-distinguisher 100:1
[*HUAWEI-vpn-instance-vpna-af-ipv4] quit
[*HUAWEI-vpn-instance-vpna] quit
[*HUAWEI] bgp 100
[*HUAWEI-bgp] ipv4-family vpn-instance vpna
[*HUAWEI-bgp-vpna] bestroute as-path-ignore