The IESG has approved the following document: - 'TRILL: Interface Addresses APPsub-TLV' (draft-ietf-trill-ia-appsubtlv-09.txt) as Proposed Standard This document is the product of the Transparent Interconnection of Lots of Links 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-trill-ia-appsubtlv/ Technical Summary This document specifies a TRILL (Transparent Interconnection of Lots of Links) IS-IS application sub-TLV that enables the reporting by a TRILL switch of sets of addresses. Each set of addresses reports all of the addresses that designate the same interface (port) and also reports the TRILL switch by which that interface is reachable. For example, a 48-bit MAC (Media Access Control) address, IPv4 address, and IPv6 address can be reported as all corresponding to the same interface reachable by a particular TRILL switch. Such information could be used in some cases to synthesize responses to or by-pass the need for the Address Resolution Protocol (ARP), the IPv6 Neighbor Discovery (ND) protocol, or the flooding of unknown MAC addresses. Working Group Summary Working Group discussions indicate that this new application sub-tlv for TRILL ISIS was the best solution. This is part of the directory services set of drafts. Document Quality with directory services. The four drafts are: draft-ietf-trill-directory-assist-mechanisms () - describes the push/pull draft-ietf-trill-channel-tunnel-05 - secure tunnel for directory push draft-ietf-trill-ia-appsubtlv-05 - reporting of addresses for TRILL interfaces in ISIS application sub-TLV (reduces/replaces need for ARP/ND ) draft-ietf-trill-arp-optimization - mechanism to optimize ARP and ND traffic on TRILL campus Directory service mechanism are currently implemented as proprietary fashions by every vendor that does some variant of TRILL (cisco, brocade, Huawei and others). Until we get a full standard solution approved, the existing vendors with "early TRILL" implementations have little reason to switch. Huawei is planning implementations. Potentially Brocade and Cisco could switch to these mechanisms, but unless IETF standards are out as a set - this may not occur. Shepherd's review resulted in simplification of section 2. No MIB, Media type or other expert review. Personnel Document shepherd: Susan Hares WG Chairs: Jon Hudson and Susan Hares Area Director: Alia Atlas
