The IESG has approved the following document: - 'Ethernet-Tree (E-Tree) Support in Virtual Private LAN Service (VPLS)' (draft-ietf-l2vpn-vpls-pe-etree-11.txt) as Proposed Standard This document is the product of the Pseudowire And LDP-enabled Services Working Group. The IESG contact persons are Alvaro Retana, Alia Atlas and Deborah Brungard. A URL of this Internet Draft is: https://datatracker.ietf.org/doc/draft-ietf-l2vpn-vpls-pe-etree/ Technical Summary A generic Virtual Private LAN Service (VPLS) solution is specified for Ethernet-Tree (E-Tree) services which uses VLANs to indicate root or leaf traffic. A VPLS Provider Edge (PE) model is illustrated as an example for the solution. In the solution, E-Tree VPLS PEs are interconnected by PWs which carry the VLAN indicating the E-Tree attribute, the MAC address based Ethernet forwarding engine and the PW work in the same way as before. A signaling mechanism for E-Tree capability and VLAN mapping negotiation is further described. Working Group Summary Progress through the working group was unremarkable until the end, when some discussion arose around the dynamic reconfiguration of the etree. It was determined that there was no requirement for seamless dynamic reconfiguration, although there was a need to be able to correct an incorrect configuration. Text was added to state this constraint and to provide guidance on how to ensure that the system automatically recovered to a state of correct operation in these circumstances. Document Quality There is at least two implementations of this protocol. Personnel Who is the Document Shepherd for this document? Stewart Bryant Who is the Responsible Area Director? Deborah Brungard
