INTERNET-DRAFT Marc Linsner
Intended Status: Informational Cisco Systems, Inc.
Expires: June 24, 2013 December 21, 2012
Large-Scale Broadband Measurement Use Cases
draft-linsner-lmap-use-cases-00
Abstract
Measuring broadband performance on a large scale is important for
network diagnostics by providers and users, as well for as public
policy. To conduct such measurements, user networks gather data,
either on their own initiative or instructed by a measurement
controller, and then upload the measurement results to a designated
measurement server. Understanding the various scenarios and users of
measuring broadband performance is essential to development of the
system requirements. The details of the measurement metrics
themselves are beyond the scope of this document.
Status of this Memo
This Internet-Draft is submitted to IETF in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF), its areas, and its working groups. Note that
other groups may also distribute working documents as
Internet-Drafts.
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."
The list of current Internet-Drafts can be accessed at
http://www.ietf.org/1id-abstracts.html
The list of Internet-Draft Shadow Directories can be accessed at
http://www.ietf.org/shadow.html
Copyright and License Notice
Copyright (c) 2012 IETF Trust and the persons identified as the
document authors. All rights reserved.
Linsner Expires June 24, 2013 [Page 1]
INTERNET DRAFT LMAP Use Cases December 21, 2012
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(http://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
described in the Simplified BSD License.
Table of Contents
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Terminology . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Use Cases . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1 Access Network Provider . . . . . . . . . . . . . . . . . . 3
2.2 End User Network Diagnostics . . . . . . . . . . . . . . . . 3
2.3 Multi-provider Network Measurements . . . . . . . . . . . . 4
2.4 Over the Top Providers . . . . . . . . . . . . . . . . . . . 4
3 Security Considerations . . . . . . . . . . . . . . . . . . . . 4
4 IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 4
5 References . . . . . . . . . . . . . . . . . . . . . . . . . . 4
5.1 Normative References . . . . . . . . . . . . . . . . . . . 4
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 5
Linsner Expires June 24, 2013 [Page 2]
INTERNET DRAFT LMAP Use Cases December 21, 2012
1 Introduction
Large-scale measurement efforts in [LMAP-REQ] describe three use
cases to be considered in deriving the requirements to be used in
developing the solution. This documents attempts to describe those
use cases in further detail and include addtional use cases.
1.1 Terminology
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].
2. Use Cases
The first 3 use cases are copied directly from [LMAP-REQ], then
changes made attempting to correlate with list discussions.
2.1 Access Network Provider
Internet service providers have an interest in knowing how well their
networks are performing, as viewed from their customers' perspective.
Such performance information allows them to identify bottlenecks and
observe the impact of changes in user behavior, e.g., the emergence
of new network applications or time-of-day patterns. Here, the
provider is not interested in the performance of an individual edge
network or device, but rather wants to get a statistically-valid
sample of performance across their network. Service providers may be
interested in both the end device performance, i.e., the performance
as seen by edge devices in home and enterprise networks, as well as
the edge performance, i.e., as seen by the network device directly
attached to their network, such as a cable modem, DSL modem or
enterprise edge router. To reduce the network load, providers are
unlikely to gather measurements from all clients all the time, but
rather sample randomly across both time and their user population.
2.2 End User Network Diagnostics
End users may want to determine whether their network is performing
according to the specifications (e.g., service level agreements)
offered by their Internet service provider, or they may want to
diagnose whether components of their network path are impaired. End
users may perform measurements on their own, using the measurement
infrastructure they provide or infrastructure offered by a third
party, or they may work directly with their network or application
provider to diagnose a specific performance problem. Depending on
the circumstances, measurements may occur at specific pre-defined
Linsner Expires June 24, 2013 [Page 3]
INTERNET DRAFT LMAP Use Cases December 21, 2012
intervals, or may be triggered manually. A system administrator may
perform such measurements on behalf of the user.
2.3 Multi-provider Network Measurements
As an extension of the first use case, multiple network providers and
third parties, such as a regulatory body, may collaborate to gather
network performance data on a one-time or recurring basis, using a
subset of customers of the service providers. The form of
collaboration is beyond the scope of this paper, however it should be
understood that a data collection platform must serve multiple
stakeholder interests.
The main consumer of this use case is someone other than the 'last
mile' provider.
2.4 Over the Top Providers
Possibly an extension to the Multi-Provider use case, OTT providers
have an interest to ensure Quality of Experience (QOE) associated
with content consumption. The uniqueness to this use case compared
to those mentioned above is the feature that the measurement client
will run on software based apps and embedded apps such as those found
in set-top boxes or disc players. It is assumed that measurement
tests run by OTT providers would only include the metrics associated
with layer 3 and up.
The main consumer of this use case are content providers.
3 Security Considerations
TBD
4 IANA Considerations
TBD
5 References
5.1 Normative References
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997.
[LMAP-REQ] Schulzrinne, H., "Large-Scale Measurement of Broadband
Linsner Expires June 24, 2013 [Page 4]
INTERNET DRAFT LMAP Use Cases December 21, 2012
Performance: Use Cases, Architecture and Protocol
Requirements", draft-schulzrinne-lmap-requirements,
September, 2012
Authors' Addresses
Marc Linsner
Marco Island, FL, USA
EMail: mlinsner@cisco.com
Linsner Expires June 24, 2013 [Page 5]