Practical DMVPN Example
In this post, I will put together a variety of different technologies involved in a real-life DMVPN deployment. This includes things such as the correct tunnel configuration, routing-configuration using BGP as the protocol of choice, as well as NAT toward an upstream provider and front-door VRF’s in order to implement a default-route on both the Hub and the Spokes and last, but not least a newer feature, namely Per-Tunnel QoS using NHRP.
VRF based path selection
In this post I will be showing you how its possible to use different paths between your PE routers on a per VRF basis. This is very useful if you have customers you want to “steer” away from your normal traffic flow between PE routers.
MPLS VPN Per VRF Label feature
In this post i would like to explain the usage of the “MPLS VPN Per VRF Label” feature. By default, in each VRF, prefixes are assigned a VPN label, used to identify the route within the VRF itself. This label is the only label that is being looked at by the receiving PE router.