--- 1/draft-ietf-ospf-ospfv3-segment-routing-extensions-21.txt	2019-01-02 02:13:09.454634347 -0800
+++ 2/draft-ietf-ospf-ospfv3-segment-routing-extensions-22.txt	2019-01-02 02:13:09.494635311 -0800
@@ -1,19 +1,19 @@
 
 Open Shortest Path First IGP                              P. Psenak, Ed.
 Internet-Draft                                       Cisco Systems, Inc.
 Intended status: Standards Track                         S. Previdi, Ed.
-Expires: June 17, 2019                                        Individual
-                                                       December 14, 2018
+Expires: July 6, 2019                                         Individual
+                                                         January 2, 2019
 
                  OSPFv3 Extensions for Segment Routing
-          draft-ietf-ospf-ospfv3-segment-routing-extensions-21
+          draft-ietf-ospf-ospfv3-segment-routing-extensions-22
 
 Abstract
 
    Segment Routing (SR) allows a flexible definition of end-to-end paths
    within IGP topologies by encoding paths as sequences of topological
    sub-paths, called "segments".  These segments are advertised by the
    link-state routing protocols (IS-IS and OSPF).
 
    This draft describes the OSPFv3 extensions required for Segment
    Routing with MPLS data plane.
@@ -34,25 +34,25 @@
    Internet-Drafts are working documents of the Internet Engineering
    Task Force (IETF).  Note that other groups may also distribute
    working documents as Internet-Drafts.  The list of current Internet-
    Drafts is at https://datatracker.ietf.org/drafts/current/.
 
    Internet-Drafts are draft documents valid for a maximum of six months
    and may be updated, replaced, or obsoleted by other documents at any
    time.  It is inappropriate to use Internet-Drafts as reference
    material or to cite them other than as "work in progress."
 
-   This Internet-Draft will expire on June 17, 2019.
+   This Internet-Draft will expire on July 6, 2019.
 
 Copyright Notice
 
-   Copyright (c) 2018 IETF Trust and the persons identified as the
+   Copyright (c) 2019 IETF Trust and the persons identified as the
    document authors.  All rights reserved.
 
    This document is subject to BCP 78 and the IETF Trust's Legal
    Provisions Relating to IETF Documents
    (https://trustee.ietf.org/license-info) in effect on the date of
    publication of this document.  Please review these documents
    carefully, as they describe your rights and restrictions with respect
    to this document.  Code Components extracted from this document must
    include Simplified BSD License text as described in Section 4.e of
    the Trust Legal Provisions and are provided without warranty as
@@ -190,26 +190,26 @@
    Segment Routing requires some additional router capabilities to be
    advertised to other routers in the area.
 
    These SR capabilities are advertised in the OSPFv3 Router Information
    Opaque LSA (defined in [RFC7770]) and specified in
    [I-D.ietf-ospf-segment-routing-extensions].
 
 5.  OSPFv3 Extended Prefix Range TLV
 
    In some cases it is useful to advertise attributes for a range of
-   prefixes.  The Segment Routing Mapping Server, which is described in
+   prefixes in a single advertisement.  The Segment Routing Mapping
+   Server, which is described in
    [I-D.ietf-spring-segment-routing-ldp-interop], is an example of where
-   a single advertisement is needed to advertise SIDs for multiple
-   prefixes from a contiguous address range.
-
-   The OSPFv3 Extended Prefix Range TLV is defined for this purpose.
+   SIDs for multiple prefixes can be advertised.  To optimize such
+   advertisement in case of multiple prefixes from a contiguous address
+   range, OSPFv3 Extended Prefix Range TLV is defined."
 
    The OSPFv3 Extended Prefix Range TLV is a top-level TLV of the
    following LSAs defined in [RFC8362]:
 
       E-Intra-Area-Prefix-LSA
 
       E-Inter-Area-Prefix-LSA
 
       E-AS-External-LSA