The IESG has received a request from the Layer 2 Virtual Private Networks WG (l2vpn) to consider the following document: - 'VPLS Interoperability with Provider Backbone Bridges' <draft-ietf-l2vpn-pbb-vpls-interop-05.txt> as Informational RFC The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the ietf@ietf.org mailing lists by 2013-09-24. Exceptionally, comments may be sent to iesg@ietf.org instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Abstract The scalability of H-VPLS with Ethernet access networks can be improved by incorporating Provider Backbone Bridge functionality in the VPLS access. Provider Backbone Bridging has been standardized as IEEE 802.1ah-2008, and aims to improve the scalability of MAC addresses and service instances in Provider Ethernet networks. This document describes different interoperability scenarios where Provider Backbone Bridge functionality is used in H-VPLS with Ethernet or MPLS access network to attain better scalability in terms of number of customer MAC addresses and number of service instances. The document also describes the scenarios and the mechanisms for incorporating Provider Backbone Bridge functionality within H-VPLS with existing Ethernet access and interoperability among them. Furthermore, the document discusses the migration mechanisms and scenarios by which Provider Backbone Bridge functionality can be incorporated into H-VPLS with existing MPLS access. The file can be obtained via http://datatracker.ietf.org/doc/draft-ietf-l2vpn-pbb-vpls-interop/ IESG discussion can be tracked via http://datatracker.ietf.org/doc/draft-ietf-l2vpn-pbb-vpls-interop/ballot/ The following IPR Declarations may be related to this I-D: http://datatracker.ietf.org/ipr/984/ http://datatracker.ietf.org/ipr/1497/ http://datatracker.ietf.org/ipr/1251/
