nx.os.and.cisco.nexus.switching.2nd.edition.1587143046

for any subsequent show or EXEC commands. Example 12-5 shows how to leverage the
routing-context command to simplify operations.
Example 12-5. Using the vrf Keyword and Routing-Context Scope for EXEC and show
Commands
Click here to view code image
N7k-1# ping 10.100.5.20 vrf management
N7k-1# show ip arp 10.100.5.20 vrf management
N7k-1# show routing vrf management
N7k-1# routing-context vrf management
N7k-1%management# ping 10.100.5.20
N7k-1%management# sh ip arp 10.100.5.20
N7k-1%management# show routing
VRF-Lite
VRF-Lite provides a simple and scalable method for virtualizing routing in many
environments. However, VRF-Lite does not require MPLS. VRF-Lite is one of the most
common deployments of VRF technology in most enterprise networks today. VRF-Lite is
typically found on MPLS CE routers, in environments in which multitenancy and routing
isolation are required, or in environments requiring support for overlapping IP ranges.
Following is a listing of steps to configure basic elements of VRF-Lite:
1. Create a new VRF context.
2. [Optional] Configure Route Targets for Import/Export Functionality.
3. Configure any necessary static routing inside of the VRF context as part of the
appropriate address-family.
4. Assign interfaces to the newly created VRF.
5. Configure Interior Gateway Protocol (IGP) for the newly created VRF.
6. [Optional] If configuring Route Import/Export, configure MP-BGP.
To configure Multi-VRF, create a VRF table and then specify the Layer 3 interface
associated with that VRF. You can also optionally configure any static routing associated to
the VRF. Example 12-6 describes these key configuration elements. Remember to assign the
VRF first before any IP addresses to the interface. Next, you enable the newly created VRF
inside of a routing protocol, as shown in Example 12-7 for OSPF, Example 12-8 for EIGRP,
and Example 12-9 for IS-IS.
Example 12-6. Basic VRF-Lite Configuration Example Using Two VRFs, vrfcustomer1
and vrf-customer2