bestroute as-path-ignore (BGP multi-instance VPN instance IPv4 address family view)

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 multi-instance 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] vpn-target 111:1 both
[*HUAWEI-vpn-instance-vpna-af-ipv4] quit
[*HUAWEI-instance-vpna] quit
[*HUAWEI] bgp 100 instance a
[*HUAWEI-bgp-instance-a] ipv4-family vpn-instance vrf1
[*HUAWEI-bgp-instance-a-vrf1] bestroute as-path-ignore