Cisco ONS 15454 SDH - Configuring VRF Lite

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Cisco ONS 15454 and Cisco ONS 15454 SDH Ethernet Card Software Feature and Configuration Guide, R8.0
Chapter 13 Configuring VRF Lite
Configuring VRF Lite
Configuring VRF Lite
Perform the following procedure to configure VRF Lite:
Example 13-1 shows an example of configuring a VRF. In the example, the VRF name is customer_a,
the route-distinguisher is 1:1, and the interface type is Fast Ethernet, number 0.1.
Example 13-1 Configuring a VRF
Router(config)# ip vrf customer_a
Router(config-vrf)# rd 1:1
Router(config-vrf)# route-target both 1:1
Router(config)# interface fastEthernet 0.1
Router(config-subif)# ip vrf forwarding customer_a
Command Purpose
Step 1
Router(config)# ip vrf vrf-name
Enters VRF configuration mode and assigns a VRF
name.
Step 2
Router(config-vrf)# rd
route-distinguisher
Creates a VPN route distinguisher (RD). An RD
creates routing and forwarding tables and specifies
the default route distinguisher for a VPN. The RD is
added to the beginning of the customer's IPv4
prefixes to change them into globally unique
VPN-IPv4 prefixes.
Either RD is an ASN-relative RD, in which case it is
composed of an autonomous system number and an
arbitrary number, or it is an IP-address-relative RD,
in which case it is composed of an IP address and an
arbitrary number.
You can enter a
route-distinguisher in either of
these formats:
16-bit AS number: your 32-bit number
For example, 101:3.
32-bit IP address: your 16-bit number
For example, 192.168.122.15:1.
Step 3
Router(config-vrf)# route-target {import
| export | both}
route-distinguisher
Creates a list of import and/or export route target
communities for the specified VRF.
Step 4
Router(config-vrf)# import map route-map
(Optional) Associates the specified route map with
the VRF.
Step 5
Router(config-vrf)# exit
Exits the current configuration mode and enters
global configuration mode.
Step 6
Router(config)# interface type number
Specifies an interface and enters interface
configuration mode.
Step 7
Router(config-vrf)# ip vrf forwarding
vrf-name
Associates a VRF with an interface or subinterface.
Step 8
Router(config-if)# end
Exits to privileged EXEC mode.
Step 9
Router# copy running-config
startup-config
(Optional) Saves configuration changes to NVRAM.