Session 6
Home Network Quality of Service
Steven Saunders
Director Home Networking Software,
CableLabs®
5/31/2016
Home networking & home services, Tokyo, 17-18 June 2004
Presentations in Session
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Managing QoS over Home Networks
Amol Bhagwat, CableLabs
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Prioritized vs. Parameterized QoS on the Home Network
Stephen Palm, Broadcom
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Quality of Service for the User (parameters, models,
measurement) and Interoperability Issues
Jean-Yves Monfort, ITU-T SG 12 Chairman
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Home Gateway for Managing Home Network QoS
Atsunobu Narita, NTT Comware Corporation
5/31/2016
Home networking & home services, Tokyo, 17-18 June 2004
Highlights from Presentation 1
“Managing QoS over Home Networks”
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How can QoS sessions be enabled between 2 devices on a HN?
 IP based application priority messaging architecture
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What level of QoS can current layer 2 HN technologies support?
 Prioritized QoS
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How can a QoS management system remain L2 agnostic?
 IP based priority messaging with generalized levels of priority
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How can legacy devices be integrated into a HN QoS solution?
 A prioritized QoS architecture accommodates legacy devices
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Harmonization of J.192 (CableHome) and UPnP.
 Both have much to offer and they are complimentary.
Harmonizing is in the best interest of all parties involved.
5/31/2016
Home networking & home services, Tokyo, 17-18 June 2004
Highlights from Presentation 2
“Prioritized vs. Parameterized QoS on the Home Network”
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What are the primary considerations for HN QoS?
 Policy, packet forwarding, and media access
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What is the primary difference between the two?
 Prioritized: differentiated access/queuing
 Parameterized: planned access/queuing
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Which is the best choice of in home IP networks?
 Prioritized is the best choice
- Legacy network compatible
- Works with dynamic data rates
- Standards and certification currently exist
- Easy to manage, low overhead
- Supports simultaneous services
5/31/2016
Home networking & home services, Tokyo, 17-18 June 2004
Highlights from Presentation 3
“Quality of Service for the User (parameters, models, measurement)
and Interoperability Issues ”
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Dec 2003 TSB organized CTO meeting: key conclusion
 The ITU should take responsibility for defining a globally
interoperable end to end QoS solution that is simple for the user
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ITU QoS Workshop: key conclusions & challenges
 End to end QoS is a critical requirement
 Common understanding and implementation of QoS classes needed
across many network types (cellular, wireless, wire-line, access)
 Collaborative effort required to define unified QoS signaling system
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Study Group 12 is playing a coordinating role (Question O/12)
 Identifying gaps in standards required to realized end to end QoS
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QoS model should be based on end user perception
 G1010: 8 applications classes based on tolerance for loss & delay
 Further development w/in SG 12 will give more specific limits for many
applications (for example online games, telemedicine)
5/31/2016
Home networking & home services, Tokyo, 17-18 June 2004
Highlights from Presentation 4
“Home Gateway for Managing Home Network QoS ”
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The Home Gateway will play a critical QoS role in home services
 Bridge between the many services being delivered to the home, and
the many device types on the home network
 Connects multiple access network technologies to multiple home
network technologies, bridges QoS among them all
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The Key QoS issues include:
 Bandwidth, delay, data loss and stability
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The Key QoS requirements include:
 Broadband, guaranteed QoS, congestion proof (for critical
packets), technology independent
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ITU is focusing on the Next Generation Network (NGN):
 The HN is a critical part, the Home gateway is the enabling device
 The home gateway should have an open service platform
5/31/2016
Home networking & home services, Tokyo, 17-18 June 2004
Overview of issues in the session
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5/31/2016
A global standard for the interoperable management of QoS on the home
network is critical for consumers and is an industry enabler
- Harmonization required among ITU standards, CableHome, UPnP/DHWG
Today, prioritized QoS in the only practical choice for QoS on the HN
- Parameterized QoS will be needed if quality guaranteed services
over the home network are to become a reality (L2 has to catch up)
Without End to End QoS, there is no QoS for services into the home
- The HN is a critical component, must be included in the solution
The Home Gateway is THE device that enables the HN to be integrated into an
end to end QoS solution
- Bridge between multiple access technologies and home technologies
Many industry efforts actively addressing various QoS issues
- Aggressive collaboration needed to provide a global cross-network
solution that is uniform from a consumer perspective (SG 12 driven)
Application QoS requirements do not necessarily translate to application priority
Other Issues: Bandwidth requirements for video? Can wireless networks really
support entertainment video? Who manages QoS policy on the HN?
Home networking & home services, Tokyo, 17-18 June 2004
Recommendations
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5/31/2016
Near term deployment focus should be on prioritised QoS for
practical reasons
Parameterised QoS is required
- The key is is L2 and other technology developments,
continue L2 and above standards efforts in this area
Continued harmonization between CableHome & UPnP, resulting
work to be standardized via J.192 revision
Joint SG9/SG12 sponsored HN QoS Standardization Summit
- Facilitate cross education between HN standards efforts and other
industry forums such as UPnP and DHWG
- Focus on the home gateway and integrating the home network into
an end-to-end QoS solution
- Both recommended at Access NW All-star Workshop
Home networking & home services, Tokyo, 17-18 June 2004
Follow-up actions
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5/31/2016
When complete, incorporate CableHome/UPnP
harmonized solution into J.192 revision
Communications between SG9 and SG12 chairman
regarding the possibility of a HN QoS Standardization
Summit (in conjunction with the upcoming ITU-T
Chairman’s Meeting)
Home networking & home services, Tokyo, 17-18 June 2004
Conclusion
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5/31/2016
Services are king on the home network
Without QoS, many home networking services won’t be
accepted by consumers, which will dampen the HN
industry
We should get started now with prioritized QoS
Parameterized QoS required by service providers, we must
solve the associated technical issues
End-to-end QoS is key for services entering the home, and
the home gateway plays a key role in integrating the HN
into an end-to-end QoS solution.
Home networking & home services, Tokyo, 17-18 June 2004