The IESG has approved the Internet-Draft 'IPv6 Global Unicast Address Format' <draft-ietf-ipv6-unicast-aggr-v2-02.txt> as an Informational RFC. This document will replace RFC2374 and reclassify RFC 2374 (and the TLA/NLA structure described there) as historic. This document is the product of the IP Version 6 Working Group. The IESG contact persons are Thomas Narten and Erik Nordmark. Technical Summary RFC2374 "An IPv6 Aggregatable Global Unicast Address Format" defined an IPv6 address allocation structure that includes TLA (Top Level Aggregator) and NLA (Next Level Aggregator). This document replaces RFC2374, and makes RFC 2374 and the TLA/NLA structure historic. Working Group Summary There was support for this in the WG; this document documents what the WG decided quite some time ago. Protocol Quality This document has been reviewed for the IESG by Thomas Narten.