CLI Guide

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. Use this identifier while importing these
routes into another nondefault 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 are duplicated into the VRF's RTM. 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 mode
Command History
This guide is platform-specific. For command information about other platforms,
see the relevant Dell Networking OS Command Line Reference Guide.
Version Description
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S4810, S4820T, S5000, S6000, S6000–
ON, and Z9500.
Usage Information To export all the routes corresponding to a source VRF, use the ip route-
export tag command without specifying the route-map attribute. This action
exposes source VRF routes to other VRFs, which then import these routes using the
ip route-import tag command.
In Dell Networking OS, you can configure one route-export per VRF as you can
only expose one set of routes 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. For example, 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.
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Virtual Routing and Forwarding (VRF)