In GMPLS case, that could be Back-to-Back or EBGP or mixed NNI connection scenarios, depending on what type of VRF exchange is used for interconnection.
Observium has specialised support for IPv6 address tracking, VRF and Pseudowire tracking, VLAN tracking via VTP-MIB and QBRIDGE-MIB, BGP session tracking via BGP4-MIB, CISCO-BGP4-MIB and BGP4-V2-MIB-JUNIPER and device inventory tracking via ENTITY-MIB.
virtual channel | Virtual reality | virtual reality | Virtual Studio Technology | Virtual Reality | Virtual private network | virtual machine | Virtual Console | Virtual Boy | Namespace Routing Language | Virtual XI | virtual private network | Virtual Murder | virtual memory | Bird Internet routing daemon | Virtual Routing and Forwarding | Virtual Network Computing | virtual network | Virtual memory | Virtual Machine | Virtual Light | Virtual LAN | Virtual hosting | Virtual Global University | Virtual Global Taskforce | Virtual camera system | Squawk virtual machine | Pennsylvania Virtual Charter School | easter egg (virtual) | Zone Routing Protocol |