Diameter Per-Flow Max Bitrates
draft-bertz-dime-perflowmbr-00

Diameter Maintenance and Extensions                             L. Bertz
Internet-Draft                                                    Sprint
Intended status: Standards Track                            July 6, 2016
Expires: January 7, 2017

                     Diameter Per-Flow Max Bitrates
                     draft-bertz-dime-perflowmbr-00

Abstract

   This document defines optional Diameter attributes for per-flow
   maximum bit rates.

Status of This Memo

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   This Internet-Draft will expire on January 7, 2017.

Copyright Notice

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   10, 2008.  The person(s) controlling the copyright in some of this
   material may not have granted the IETF Trust the right to allow
   modifications of such material outside the IETF Standards Process.
   Without obtaining an adequate license from the person(s) controlling
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   than English.

1.  Introduction

   This document provides a mechanism for the specification of per-flow
   maximum bit rates.  Such values are used to limit individual flow
   rates while maintaining a higher aggregate maximum bit rate across
   aggregate flows.

   It supplements the various values defined Aggregate Maximum Bitrates
   such as those specified for IP Mobility [RFC7222].

2.  Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119 [RFC2119].

3.  Per Flow AVPs

3.1.  Per-Flow-Max-DL-Bit-Rate

   The Per-Flow-Max-DL-Bit-Rate AVP (AVP Code TBD1) is of type
   Unsigned32.

   It specifies the maximum downlink bit rate that is requested/
   allocated for each of the mobile node's IP flows.  The measurement
   units are bits per second.

3.2.  Per-Flow-Max-UL-Bit-Rate

   The Per-Flow-Max-UL-Bit-Rate AVP (AVP Code TBD1) is of type
   Unsigned32.

   It specifies the maximum uplink bit rate that is requested/ allocated
   for each of the mobile node's IP flows.  The measurement units are
   bits per second.

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4.  IANA Considerations

   IANA allocated AVP codes in the IANA-controlled namespace registry
   specified in Section 11.1.1 of [RFC6733] for the following AVPs that
   are defined in this document.

   +--------------------------+---------+-----------------+------------+
   | AVP                      | AVP     | Section Defined | Data Type  |
   |                          | Code    |                 |            |
   +--------------------------+---------+-----------------+------------+
   | Per-Flow-Max-DL-Bit-Rate | TBD1    | Section 3.1     | UTF8String |
   |                          |         |                 |            |
   | Per-Flow-Max-UL-Bit-Rate | TBD2    | Section 3.2     | GROUPED    |
   +--------------------------+---------+-----------------+------------+

5.  Security Considerations

   This document defines new AVPs to limit the maximum bitrate of an IP
   flow (5-tuple) in the mobile devices uplink or downlink.  As these
   are further constraints on Diameter applications already specifying
   aggregeate maximum bit rates, they do not introduce new security
   concerns for an Authorized User.

   For an operator, access to this data may give some insight to how the
   associated service operates.  It is RECOMMENDED that this or any
   Diameter communication is secured.

   The Security Considerations of the Diameter protocol itself have been
   discussed in RFC [RFC6733].  Use of the AVPs defined in this document
   MUST take into consideration the security issues and requirements of
   the Diameter base protocol.

6.  References

6.1.  Normative References

   [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate
              Requirement Levels", BCP 14, RFC 2119,
              DOI 10.17487/RFC2119, March 1997,
              <http://www.rfc-editor.org/info/rfc2119>.

   [RFC6733]  Fajardo, V., Ed., Arkko, J., Loughney, J., and G. Zorn,
              Ed., "Diameter Base Protocol", RFC 6733,
              DOI 10.17487/RFC6733, October 2012,
              <http://www.rfc-editor.org/info/rfc6733>.

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6.2.  Informative References

   [RFC7222]  Liebsch, M., Seite, P., Yokota, H., Korhonen, J., and S.
              Gundavelli, "Quality-of-Service Option for Proxy Mobile
              IPv6", RFC 7222, DOI 10.17487/RFC7222, May 2014,
              <http://www.rfc-editor.org/info/rfc7222>.

Author's Address

   Lyle Bertz
   Sprint
   6220 Sprint Parkway
   Overland Park, KS  66251
   United States

   Email: lylebe551144@gmail.com

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