Reference Guide

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route-map-name

(Optional) Enter the name of the route-map to filter the exported routes. You can

leak global routes to be made available to VRFs. As the global RTM usually contains

a large pool of routes, when the destination VRF imports global routes, these

routes will be duplicated into the VRF's RTM. As a result, it is mandatory to use

route-maps to filter out leaked routes while sharing global routes with VRFs.

Defaults N/A

Command Modes

VRF MODE

CONFIGURATION

Command

History

Version Description

9.7(0.0) Introduced on the S4810, S4820T, S5000, S6000, S6000–ON, and Z9500.

Usage

Information

You can use the ip route-export tag command without specifying the route-map attribute to export all the

routes corresponding to a source VRF. This action exposes source VRF's routes to various other VRFs,

which then import these routes using the ip route-import tag command. In Dell Networking OS, you can

configure at most one route-export per VRF as only one set of routes can be exposed for leaking.

However, you can configure multiple route-import targets because a VRF can accept routes from multiple

VRFs.

You can expose a unique set of routes from the Source VRF for Leaking to other VRFs. When two VRFs

leak or export routes, there is no option to discretely filter leaked routes from each source VRF. Meaning,

you cannot import one set of routes from one VRF and another set of routes from another VRF.

Only Active routes are eligible for leaking. For example, if one VRF has two routes corresponding to BGP

and OSPF, in which the BGP route is not active, the OSPF route takes precedence over BGP. Even

though the Target VRF has specified filtering options to match BGP, the BGP route is not leaked as that

route is not active in the Source VRF.

Commands

ipv6 route-import – imports IPv6 routes from another VRF.

ipv6 route-import

Imports IPv6 routes that are leaked by another VRF using the tag specified by that VRF during export of these routes.

Syntax

ipv6 route-import tag [route-map-name]

Parameters

route-import Enter the keyword route-import to import IPv6 routes into the VRF.

tag Enter a tag (ASN number) to specify an import route target for importing routes

from another VRF. To import leaked routes from another VRF, you must use the

same ASN number that is specified as the export route target at the source VRF.

route-map-name

Enter the name of the route-map to filter the imported routes.

NOTE: You must use the route-map attribute while importing routes from the

global RTM. Route-maps enable you to filter routes at the import end based on

the matching criteria that you define in the route-map.