Administrator Guide

Command
History
Version Description
9.9(0.0) Introduced on the C9010.
9.8(0.0) Introduced on the S3048-ON and S4048-ON.
9.7(0.0) Introduced on the S4810, S4820T, S5000, S6000, S6000–ON, and Z9500.
Usage
Information
You can configure multiple import conditions per VRF depending on the exporting VRF.
The export-target and import-target support only the match protocol and match prefix-list options, all
other options configured in the route-map are ignored.
Related
Commands
ip route-export – exports routes to another VRF.
ipv6 route-export
Enable route leaking between VRFs. Export or share IPv6 routes corresponding to one VRF with other non-default VRFs.
C9000 Series
Syntax
ipv6 route-export tag [route-map-name]
Parameters
route-export Enter the keyword route-export to leak or share routes between VRFs.
tag Enter a tag (ASN number) as the export route target to expose routes to other
VRFs. This tag acts as an identifier for exported routes. You can use this identifier
while importing these routes into another non-default VRF.
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
9.9(0.0) Introducued on the C9010.
9.8(0.0) Introduced on the S3048-ON and S4048-ON.
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 is exposed
for leaking. However, you can configure multiple route-import targets because a VRF accepts 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. 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.
Virtual Routing and Forwarding (VRF) 1785