With the devices added to the fabric, you can now create the vPC peering between staging-leaf1 and staging-leaf2. You will create a new file named vpc.nac.yml.
This file will contain all of the necessary vPC configurations to establish the vPC peering for the leaf switches. The vPC settings such as peer-link Vlan and peer-keepalive VRF to use are defined under the vpc section of the global key.
The actual vpc_peers are defined under the vpc_peers of the topology section. Again, this vPC peering configuration will be used by the Ansible playbook to create the vPC peering between the leaf switches.
touch ~/workspace/ndlab/nac/host_vars/fabric-stage/vpc.nac.yml
code-server -r ~/workspace/ndlab/nac/host_vars/fabric-stage/vpc.nac.yml
---
vxlan:
global:
vpc:
peer_link_vlan: 3600
peer_keep_alive: management
auto_recovery_time: 240
delay_restore_time: 150
peer_link_port_channel_id: 500
advertise_pip: true
domain_id_range: 1-100
topology:
vpc_peers:
- peer1: staging-leaf1
peer2: staging-leaf2
fabric_peering: true
Make sure you are in your root Ansible directory
cd ~/workspace/ndlab/nac
From the root Ansible project directory execute the following command:
ansible-playbook -i hosts.stage.yml vxlan.yml --tags cr_manage_vpc_peers
Upon a successful run of the playbook your output should look as follows:
<... SNIP ...> PLAY RECAP ******************************************************************************************************************************************************************* fabric-stage : ok=230 changed=32 unreachable=0 failed=0 skipped=761 rescued=0 ignored=0 PLAYBOOK RECAP *************************************************************************************************************************************************************** Playbook run took 0 days, 0 hours, 1 minutes, 16 seconds TASKS RECAP ****************************************************************************************************************************************************************** Wednesday 01 October 2025 16:08:33 +0000 (0:00:00.382) 0:01:16.706 ***** =============================================================================== cisco.nac_dc_vxlan.create : Manage vPC Peering in Nexus Dashboard ----------------------------------------------------------------------------------------------------- 1.91s cisco.nac_dc_vxlan.common : Get POAP Data From POAP Enabled Devices --------------------------------------------------------------------------------------------------- 1.88s cisco.nac_dc_vxlan.connectivity_check : Get Cisco Nexus Dashboard Fabric Controller Version --------------------------------------------------------------------------- 1.55s cisco.nac_dc_vxlan.common : Build Fabric Creation Parameters From Template -------------------------------------------------------------------------------------------- 0.84s cisco.nac_dc_vxlan.connectivity_check : Verify Authorization to Nexus Dashboard --------------------------------------------------------------------------------------- 0.79s cisco.nac_dc_vxlan.validate : Copy Service Model Data to Host --------------------------------------------------------------------------------------------------------- 0.74s cisco.nac_dc_vxlan.common : Build Fabric Switch Inventory List From Template ------------------------------------------------------------------------------------------ 0.68s cisco.nac_dc_vxlan.common : Retrieve NDFC Device Username and Password from Group Vars and update inv_config ---------------------------------------------------------- 0.67s cisco.nac_dc_vxlan.common : Build VRFs Attach List From Template ------------------------------------------------------------------------------------------------------ 0.65s cisco.nac_dc_vxlan.common : Retrieve NDFC Device Username and Password from Group Vars and update inv_config ---------------------------------------------------------- 0.65s cisco.nac_dc_vxlan.common : Build Loopback Interfaces List From Template ---------------------------------------------------------------------------------------------- 0.65s cisco.nac_dc_vxlan.common : Build Interface --------------------------------------------------------------------------------------------------------------------------- 0.64s cisco.nac_dc_vxlan.common : Build Networks Attach List From Template -------------------------------------------------------------------------------------------------- 0.63s cisco.nac_dc_vxlan.common : Build Interface --------------------------------------------------------------------------------------------------------------------------- 0.63s cisco.nac_dc_vxlan.common : Build Fabric Switch Inventory List From Template ------------------------------------------------------------------------------------------ 0.62s cisco.nac_dc_vxlan.common : Build Links for vPC Peering --------------------------------------------------------------------------------------------------------------- 0.62s cisco.nac_dc_vxlan.common : Build Interface --------------------------------------------------------------------------------------------------------------------------- 0.62s cisco.nac_dc_vxlan.common : Build Policy List From Template ----------------------------------------------------------------------------------------------------------- 0.61s cisco.nac_dc_vxlan.common : Build Fabric Links ------------------------------------------------------------------------------------------------------------------------ 0.60s cisco.nac_dc_vxlan.common : Build Interface --------------------------------------------------------------------------------------------------------------------------- 0.59s ROLES RECAP ****************************************************************************************************************************************************************** Wednesday 01 October 2025 16:08:33 +0000 (0:00:00.384) 0:01:16.707 ***** =============================================================================== common ----------------------------------------------------------------- 59.58s validate ---------------------------------------------------------------- 5.75s create ------------------------------------------------------------------ 4.26s connectivity_check ------------------------------------------------------ 3.85s common_global ----------------------------------------------------------- 0.05s ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ total ------------------------------------------------------------------ 73.50s
The vPC peering should now be pre-staged between leaf1 and leaf2. Return to NDFC and verify.
In NDFC, you should still be on the Switches tab, if not:
On the keyword press Ctrl + K + W. This should close all open tabs to clear your workspace for the next section.
Continue to the next section to define the interfaces for the leaf switches in your fabric using VXLAN as Code.