--- 1/draft-ietf-ippm-bw-capacity-02.txt	2006-06-23 22:13:05.000000000 +0200
+++ 2/draft-ietf-ippm-bw-capacity-03.txt	2006-06-23 22:13:05.000000000 +0200
@@ -1,19 +1,19 @@
 
 IP Performance Metrics Working                               P. Chimento
 Group                                            JHU Applied Physics Lab
 Internet-Draft                                                  J. Ishac
-Expires: November 18, 2006                    NASA Glenn Research Center
-                                                            May 17, 2006
+Expires: December 23, 2006                    NASA Glenn Research Center
+                                                           June 21, 2006
 
                        Defining Network Capacity
-                     draft-ietf-ippm-bw-capacity-02
+                     draft-ietf-ippm-bw-capacity-03
 
 Status of this Memo
 
    By submitting this Internet-Draft, each author represents that any
    applicable patent or other IPR claims of which he or she is aware
    have been or will be disclosed, and any of which he or she becomes
    aware will be disclosed, in accordance with Section 6 of BCP 79.
 
    Internet-Drafts are working documents of the Internet Engineering
    Task Force (IETF), its areas, and its working groups.  Note that
@@ -24,21 +24,21 @@
    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."
 
    The list of current Internet-Drafts can be accessed at
    http://www.ietf.org/ietf/1id-abstracts.txt.
 
    The list of Internet-Draft Shadow Directories can be accessed at
    http://www.ietf.org/shadow.html.
 
-   This Internet-Draft will expire on November 18, 2006.
+   This Internet-Draft will expire on December 23, 2006.
 
 Copyright Notice
 
    Copyright (C) The Internet Society (2006).
 
 Abstract
 
    Measuring capacity is a task that sounds simple, but in reality can
    be quite complex.  In addition, the lack of a unified nomenclature on
    this subject makes it increasingly difficult to properly build, test,
@@ -210,50 +210,51 @@
 
    The previous definitions specify a link's capacity, namely the IP
    information bits that can be transmitted across a link or path should
    the resource be free of any congestion.  Determining how much
    capacity is available for use on a congested link is potentially much
    more useful.  However, in order to define the available capacity we
    must first specify how much is being used.
 
    IP Layer Link Usage:
       The average usage of a link L, Used(L,T,I), is the actual number
-      of IP layer bits correctly transmitted from any source over link L
+      of IP layer bits from any source, correctly received over link L
       during the interval [T, T+I], divided by I.
 
    An important distinction between usage and capacity is that
    Used(L,T,I) is not the maximum amount, but rather, the actual amount
-   of IP bits that are sent.  The information transmitted across the
-   link can be generated by any source, including those who may not be
-   directly attached to either side of the link.  In addition, each
-   information flow from these sources may share any number (from one to
-   n) of links in the overall path between S and D. Next, we express
-   usage as a fraction of the overall IP layer link capacity.
+   of IP bits that are correctly received.  The information transmitted
+   across the link can be generated by any source, including those who
+   may not be directly attached to either side of the link.  In
+   addition, each information flow from these sources may share any
+   number (from one to n) of links in the overall path between S and D.
+   Next, we express usage as a fraction of the overall IP layer link
+   capacity.
 
    Average IP Layer Link Utilization:
       Util(L,T,I) = ( Used(L,T,I) / C(L,T,I) )
 
    Thus, the utilization now represents the fraction of the capacity
    that is being used and is a value between zero, meaning nothing is
    used, and one, meaning the link is fully saturated.  Multiplying the
    utilization by 100 yields the percent utilization of the link.  By
    using the above, we can now define the capacity available over the
    link as well as the path between S and D. Note that this is
    essentially the definition in [PDM].
 
    IP Layer Available Link Capacity
       AvailCap(L,T,I) = C(L,T,I) * ( 1 - Util(L,T,I) )
 
    IP Layer Available Path Capacity
       AvailCap(P,T,I) = min {1..n} {AvailCap(Ln,T,I)}
 
-   Since measurements of available capacity are more volatile that that
+   Since measurements of available capacity are more volatile than that
    of capacity, it is important that both the time and interval be
    specified as their values have a great deal of influence on the
    results.  In addition, a sequence of measurements may be beneficial
    in offsetting the volatility when attempting to characterize
    available capacity.
 
 3.  Discussion
 
 3.1  Standard or Correctly Formed Packets