%% You should probably cite draft-zhu-idr-bgpls-sr-vtn-flexalgo-01 instead of this revision. @techreport{zhu-idr-bgpls-sr-vtn-flexalgo-00, number = {draft-zhu-idr-bgpls-sr-vtn-flexalgo-00}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-zhu-idr-bgpls-sr-vtn-flexalgo/00/}, author = {Yongqing Zhu and Jie Dong and Zhibo Hu}, title = {{BGP-LS with Flex-Algo for Segment Routing based Virtual Transport Networks}}, pagetotal = 9, year = 2020, month = mar, day = 9, abstract = {Enhanced VPN (VPN+) as defined in I-D.ietf-teas-enhanced-vpn aims to provide enhanced VPN service to support applications's needs of enhanced isolation and stringent performance requirements. VPN+ requries integration between the overlay VPN and the underlay network. A Virtual Transport Network (VTN) is a virtual network which consists of a subset of the network toplogy and network resources allocated from the underlay network. A VTN could be used as the underlay for one or a group of VPN+ services. I-D.dong-idr-bgpls-sr-enhanced-vpn defines the BGP-LS extensions to distribute the information of Segment Routing (SR) based VTNs to external entities, such as the network controllers. This document describes a simplified mechanism to distribute the information of SR based VTNs using BGP-LS with Flex-Algo.}, }