import-route (BGP view) (Non-IGP)

Function

The import-route command configures BGP to import routes from other protocols.

The undo import-route command cancels the configuration.

By default, BGP does not import routes from other protocols.

Format

import-route { direct | static | unr } [ [ med med ] | [ [ route-policy route-policy-name ] | [ route-filter route-filter-name ] ] ] ^*

import-route { direct | static } [ [ med med ] | [ [ route-policy route-policy-name ] | [ route-filter route-filter-name ] ] ] ^* [ non-relay-tunnel ]

undo import-route { direct | static | unr }

Parameters

Parameter	Description	Value
direct	Configures BGP to import direct routes.	-
static	Configures BGP to import static routes.	-
unr	Configures BGP to import UNR routes.	-
med med	Specifies the MED for imported routes.	The value is an integer ranging from 0 to 4294967295.
route-policy route-policy-name	Specifies the route-policy used to filter routes and modify route attributes when these routes are imported from other protocols.	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.
route-filter route-filter-name	Specifies the route-filter used to filter routes and modify route attributes when these routes are imported from other protocols.	The value is a string of 1 to 200 case-sensitive characters, spaces not supported. If parameters are included in the referenced route-filter, specify values for them in the format of (var1, var2, ...var8) behind the route-filter name. A maximum of eight parameters can be specified, and each value ranges from 1 to 200 characters.
non-relay-tunnel	Prevents the routes imported by BGP from recursing to tunnels.	-

Views

BGP view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
bgp	write

Usage Guidelines

Usage Scenario

BGP can import routes using the import-route command or network command:

The import-route command imports routes of a specified type into the BGP routing table, such as RIP, OSPF, IS-IS, static, or direct routes.
The network command imports routes with the specified prefix and mask into the BGP routing table. Compared with the import-route command, the network command imports more specific routes.
NOTE:
When the import-route static command is run, only active static routes are imported.
In most cases, the routes imported by BGP can recurse to tunnels. However, in some other cases, if the routes imported by BGP recurse to tunnels, a problem will occur. For example, in a seamless MPLS scenario, if the egress protection function is configured on egress MASGs between which a tunnel exists and a route imported by BGP on one of the MASGs recurses to the tunnel, this MASG then recurses the route to another tunnel of a different type. In this case, traffic is directed to the other MASG, which slows down traffic switchover. As a result, the egress protection function does not take effect. To address this problem, specify non-relay-tunnel to prevent the routes imported by BGP from recursing to tunnels.

Configuration Impact

If the default-route imported command has not been used when you run the import-route command to import routes from other protocols, BGP cannot import default routes.

Precautions

The import-route route-policy command is mutually exclusive with the import-route route-filter command.

Example

# Import direct routes.

<HUAWEI> system-view
[~HUAWEI] bgp 100
[*HUAWEI-bgp] import-route direct