Transcript TR41.4-04-11-018-LM-CallForInterest.ppt

TR41.4.4-04-11-018-LM
Call for Interest
PoE-plus
Daniel Feldman
[email protected]
Yair Darshan
[email protected]
Ronen Heldman
[email protected]
www.powerdsine.com
PowerDsine Presentation
April 2004
Page 1
Agenda
 Why go beyond 802.3af?
– Higher power
– Support mission critical applications with simple additional
management requirements.
 Benefits and opportunities
 Problems
 General scope
 Why now is the time?
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PowerDsine Presentation
April 2004
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Why go beyond 802.3af?
 To power more products in the existing PoE markets
– Markets where part of the PD’s require more than 12.95W
 To benefit more markets from Power over Ethernet
– Markets that require more than 12.95W for PD’s
 Support mission critical application by adding some
management requirements
– Quickly recovering from failure
– For markets which need 99.999% uptime
 Customer demand 
www.powerdsine.com
PowerDsine Presentation
April 2004
Page 3
Higher power applications
Market
Application
Power Requirement
WLAN
Dual band AP’s
~20W
802.11n AP’s
~20W
Outdoor AP’s/Bridges
20W-30W
Cooling/Heating
30W-40W
PTZ Network Camera
15W-20W
Cooling/Heating
Up to 50W
Video Phones
15W-25W
Security
IP Telephony
New Markets RFID Readers and Access Control Systems Up to 25W
802.16 Base Stations
15W to 60W
Workgroup switches
Up to 50W
Residential Gateways
~20W
Portable Storage
Up to 45W
Industrial sensors
1W to 30W
Laptops
Up to 70W
Point of Sales and Information Kiosks
13W to 60W
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PowerDsine Presentation
April 2004
Page 4
802.11 Dual Band Market Forecast
Waiting for IDC’s approval to show data.
Source: IDC June 2004
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April 2004
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Supporting 802.3af mission critical applications
 Several PoE markets demand 99.999% uptime
 Need high survivability in case of system failure
– Banking
– Medical
– Security
– Point of Sale
– Enterprise Wireless Networking on VoWLAN
applications for these markets
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PowerDsine Presentation
April 2004
Page 6
The 802.3ad precedent
 802.3ad: Link Aggregation Protocol
– IEEE802.3 optional standard for the data link, covering


Redundancy
Increased data transmission between two nodes (“high data”)
– Link aggregation sub-layer in which multiple physical links may
be aggregated together to form a single logical link
– Backwards compatible with single links
 Increased reliability in the power domain
– Addition of redundancy in the power links hence increased
resiliency
www.powerdsine.com
PowerDsine Presentation
April 2004
Page 7
Next generation PoE – Benefits & Opportunities
 To power more products in the existing PoE
markets
 To benefit more markets from Power over
Ethernet
– Replaces high power external adaptors
 To allow higher up time of 802.3af PDs
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PowerDsine Presentation
April 2004
Page 8
Problems
 No standard for high power
 Some vendors have started to develop proprietary
solutions for high power applications
– Potential interoperability issues with 1000BT, 10G
– Can’t interconnect different equipment
 Some vendors have started to develop redundancy
support for mission critical applications
– May need to define minimum management requirements
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PowerDsine Presentation
April 2004
Page 9
General scope of study
 High Power
– How much power is required
– How much power is possible
 Considering setting a limit for high power levels in PoE
technology
– Today the power delivery capability of the LAN infrastructure is
not efficiently utilized
– We don’t wish to open this issue again in the future
 Distinction between
– 802.3af PD’s and high power PD’s
 Interoperation with 802.3 and other standards
 Power redundancy management at port level
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PowerDsine Presentation
April 2004
Page 10
Now is the time
 There is a demand for higher power support from PoE
– Wireless AP, Security world, Video phones other emerging PoE
markets
– Avoid proliferation of proprietary non-interoperable solutions
 Enable mission critical applications that require
redundancy support
– Banking, point of sale, medical, etc…
 Proprietary solutions are already available in the market
 802.3 standards process is the best way to achieve a
standard
www.powerdsine.com
PowerDsine Presentation
April 2004
Page 11