bestroute med-none-as-maximum (BGP multi-instance VPN instance IPv4 address family view)

Function

The bestroute med-none-as-maximum command configures BGP to assign the maximum MED (4294967295) to a route without MED in route selection.

The undo bestroute med-none-as-maximum command restores the default configuration.

By default, BGP assigns 0 to a route without MED.

Format

bestroute med-none-as-maximum

undo bestroute med-none-as-maximum

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

The bestroute med-none-as-maximum command takes effect during BGP route selection and is used only when no MED is carried by BGP routes. If no MED is carried and the bestroute med-none-as-maximum command is not run, the system cannot select the desired route as the optimal route.

Configuration Impact

During BGP route selection, if the bestroute med-none-as-maximum command is run, a route without MED is assigned the maximum MED (4294967295).

Example

# Configure BGP to assign the maximum MED (4294967295) to a route without MED in route selection.

<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 med-none-as-maximum