routing-table rib-only (BGP-VPN instance IPv6 address family view)

Function

The routing-table rib-only command prohibits BGP routes from being added to the IP routing table.

The undo routing-table rib-only command restores the default configuration.

By default, the preferred BGP routes are added to the IP routing table.

Format

routing-table rib-only [ route-policy route-policy-name ]

undo routing-table rib-only

Parameters

Parameter	Description	Value
route-policy route-policy-name	Specifies the name of a routing policy.	The name is a string of 1 to 200 case-sensitive characters, with spaces not supported. When double quotation marks are used around the string, spaces are allowed in the string.

Parameter

Description

Value

route-policy route-policy-name

Specifies the name of a routing policy.

The name is a string of 1 to 200 case-sensitive characters, with spaces not supported. When double quotation marks are used around the string, spaces are allowed in the string.

Views

BGP-VPN instance IPv6 address family view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
bgp	write

Usage Guidelines

Usage Scenario

If a route reflector (RR) is used and preferred BGP routes do not need to be used during the forwarding, the routing-table rib-only command can be used to make BGP routes unable to be added to the IP routing table or the forwarding layer. This improves forwarding efficiency and the system capacity.

When route-policy-name is specified in the command, the routes matching the policy are not added to the IP routing table, and the routes not matching the policy are added to the IP routing table.

Configuration Impact

After the routing-table rib-only command is run, the routes preferred by BGP are not added to the IP routing table.

Precautions

The routing-table rib-only command and the active-route-advertise command are mutually exclusive.

Example

# Prohibit BGP routes from being advertised to the IP routing table.

<HUAWEI> system-view
[~HUAWEI] ip vpn-instance vrf1
[*HUAWEI-vpn-instance-vrf1] ipv6-family unicast
[*HUAWEI-vpn-instance-vrf1-af-ipv6] route-distinguisher 333:3
[*HUAWEI-vpn-instance-vrf1-af-ipv6] vpn-target 333:3
[*HUAWEI-vpn-instance-vrf1-af-ipv6] quit
[*HUAWEI-vpn-instance-vrf1-af] quit
[*HUAWEI] bgp 100
[*HUAWEI-bgp] ipv6-family vpn-instance vrf1
[*HUAWEI-bgp-6-vrf1] routing-table rib-only