--- 1/draft-ietf-i2rs-yang-dc-fabric-network-topology-09.txt	2018-06-30 00:13:09.746453943 -0700
+++ 2/draft-ietf-i2rs-yang-dc-fabric-network-topology-10.txt	2018-06-30 00:13:09.802455289 -0700
@@ -1,44 +1,45 @@
 
 I2RS Working Group                                             Y. Zhuang
 Internet-Draft                                                    D. Shi
 Intended status: Standards Track                                  Huawei
-Expires: October 20, 2018                                          R. Gu
+Expires: December 31, 2018                                         R. Gu
                                                             China Mobile
                                                       H. Ananthakrishnan
                                                            Packet Design
-                                                          April 18, 2018
+                                                           June 29, 2018
 
      A YANG Data Model for Fabric Topology in Data Center Networks
-           draft-ietf-i2rs-yang-dc-fabric-network-topology-09
+           draft-ietf-i2rs-yang-dc-fabric-network-topology-10
 
 Abstract
 
    This document defines a YANG data model for fabric topology in Data
-   Center Networks.
+   Center Networks and it represents only one possible view of the dc
+   fabric.
 
 Status of This Memo
 
    This Internet-Draft is submitted in full conformance with the
    provisions of BCP 78 and BCP 79.
 
    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 October 20, 2018.
+   This Internet-Draft will expire on December 31, 2018.
 
 Copyright Notice
 
    Copyright (c) 2018 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
@@ -86,24 +87,24 @@
 
    Luckily, for a DC network, a fabric can be considered as an atomic
    structure for management purposes.  From this point of view, the
    management of the DC network can be decomposed into a set of tasks to
    manage each fabric separately, as well as the fabric
    interconnections.  This way, the overall management task becomes very
    flexible and makes it easy to expand and adopt to DC networks that
    evolve over time.
 
    As a basis for DC fabric management, this document defines a YANG
-   data model [RFC6020][RFC7950] for fabric-based data center topology.
-   To do so, it augments the generic network and network topology data
-   models defined in [RFC8345] with information that is specific to Data
-   Center fabric networks.
+   data model [RFC6020][RFC7950] for a possible view of the fabric-based
+   data center topology.  To do so, it augments the generic network and
+   network topology data models defined in [RFC8345] with information
+   that is specific to Data Center fabric networks.
 
    The model defines the generic configuration and operational state for
    a fabric-based network topology, which can subsequently be extended
    by vendors with vendor-specific information as needed.  The model can
    be used by a network controller to represent its view of the fabric
    topology that it controls and expose this view to network
    administrators or applications for DC network management.
 
    Within the context of topology architecture defined in [RFC8345],
    this model can also be treated as an application of the I2RS network