The MPLS VPN-Tagging Server enables IP Availability Manager to correctly represent in its modeled topology certain VRF overlapping IP-address configurations. When the MPLS VPN-Tagging Server discovers these configurations, it sends the connection information to IP Availability Manager so that IP Availability Manager can distinguish the overlapping IP addresses in the configurations. Doing so enables IP Availability Manager to create the correct network connections for the configurations.

Creating the correct network connections means that the MPLS Topology Server will import more accurate topology information from IP Availability Manager.

Instructions for configuring IP Availability Manager to interoperate with the MPLS VPN-Tagging Server are given in “Enabling interoperability with the MPLS VPN-Tagging Server” on page 78.