Using CSR1000v as a BorderPE to "stitch" MPLS VPNv4 to VXLAN EVPN

This repository and its functionality is actively being developed and tested on the DEVNET Sandbox "Multi-IOS Cisco Test Network" found at https://devnetsandbox.cisco.com/RM/Topology. The default topologies provided are overridden by the vxlan-mpls.virl topology file I've provided.

Additionally, on the DEVNET Jumpbox (10.10.20.20), you'll need to create an Ansible virtual environment so that you have the latest Ansible version (2.5.5, at the time of this README)

Because of its "under development" state, no claims at building a complete, functional fabric are being asserted - let alone a fabric that integrates cleanly with an MPLS backbone.

IOS-XE VXLAN EVPN L3 Configuration (Carrier Ethernet Guide)

• https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/cether/configuration/xe-16/ce-xe-16-book/evpn-vxlan-l3.html

IOS-XE Load-Sharing Configuration

• https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipswitch_cef/configuration/xe-16/isw-cef-xe-16-book/isw-cef-load-balancing.html

IOS-XE ECMP Load Balancing with Tunnel Visibility

• https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipswitch_cef/configuration/xe-16/isw-cef-xe-16-book/isw-cef-ecmp-loadbalance-with-tunnel-visibility.html

Enhancement to IOS for VXLAN UDP Source Port Entropy

• https://bst.cloudapps.cisco.com/bugsearch/bug/CSCur69109

GitHub recommended updates to Jinja=2.10.1 and Ansible=2.6.18 are applied without any testing. As such, the playbooks could be broken as a result.

Much of the VXLAN EVPN Nexus configurations were inspired/taken from Matt Tarkington's repository (https://github.com/mtarking/cisco-programmable-fabric).

As this repository evolves, it will look less and less like the original as I refactor the codes and break out the modules for training purposes as well as clarity of function.

But, I heavily used Matt's repo to train myself on Ansible on Nexus and want to acknowledge its role.