Administrator 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 S6000-ON and Z9500.
9.4.(0.0) Introduced on the S-Series and Z9000.
Usage Information
You can attach an interface to either a nondefault VRF or a management VRF.
To assign a port-back to a default VRF, remove the VRF association from the interface. You can use this only if
there is no IP address congured on the interface.
There must be no prior Layer 3 conguration on the interface when conguring VRF.
You must enable VRF before using this command.
You can congure an IP subnet or address on a physical or VLAN interface that overlaps the same IP subnet or
address congured on another interface only if the interfaces are assigned to dierent VRFs. If you assign two
interfaces to the same VRF, you cannot congure overlapping IP subnets or the same IP address to them.
Example
Dell# configure terminal
Dell(conf)# ip vrf red
Dell(conf-vrf)# description "Red Network"
Dell(conf-vrf)# show config
!
ip vrf red 4
description "Red Network"
Dell(conf-vrf)#
Dell(conf-if-gi-1/45)# int gi 1/46
Dell(conf-if-gi-1/46)# no shut
Dell(conf-if-gi-1/46)# ip vrf forwarding red
Dell(conf-if-gi-1/46)# ip add 100.1.1.1/24
Dell(conf-if-gi-1/46)#
Dell(conf-if-gi-1/46)#
Dell(conf-if-gi-1/46)#
Dell(conf-if-gi-1/46)# show config
!
interface GigabitEthernet 1/46
ip vrf forwarding red
ip address 100.1.1.1/24
no shutdown
Dell(conf-if-gi-1/46)#
ip route-export
Enables route leaking between VRFs. This command exports or shares IPv4 routes corresponding to one VRF with other nondefault VRFs.
Syntax
ip route-export tag [route-map-name]
Parameters
route-export Enter the keywords route-export to leak or share routes between VRFs.
tag Enter a tag (export route target) to expose routes to other VRFs. This tag acts as an
identier for exported routes. Use this identier while importing these routes into another
nondefault VRF.
1644 Virtual Routing and Forwarding (VRF)