v1.0 - 20050426 D ocum entC over Sheet ProjectN um ber PN-3-0062 D ocum entTitle TIA-921+G .N IM M Presentation 10-17-05 atITU -T SG 12 and SG 9 Source SpirentCom m unications C ontact N am e: Jack D ouglass 25701 Patterson Place Laguna H ills,CA 92653 Phone:949-436-0663 Fax: Email: jack.douglass@ spirentcom.com D istribution TR-30.3 ForIncorporation Into TIA Publication X ForInformation Intended Purpose ofD ocum ent (Selectone) O ther(describe)- The docum ent to w hich this cover statem ent is attached is subm itted to a Form ulating G roup or sub-elem entthereofofthe Telecom m unications Industry A ssociation (TIA )in accordance w ith the provisionsofSections6.4.1–6.4.6 inclusive ofthe TIA Engineering M anualdated M arch 2005,allof w hich provisionsare hereby incorporated by reference. A bstract Thisdocum entisa presentation thatw asgiven attheITU-T SG 12 and SG 9 m eetingsin G eneva O ct17 to 21 concerning TIA -921 and G .N IM M. Telecommunications Industry Association TR-30.3/05-12-043
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Telecommunications Industry AssociationTR-30.3/05-12-043
Telecommunications Industry AssociationTR-30.3/05-12-043. TIA-921 (PN-3-0062) and ITU-T G.NIMM Network Model for Evaluating Multimedia Transmission Performance Over Internet Protocol. Jack Douglass, Spirent Chair TIA TR30.3 October 2005 Q13/12 D115 (TIA-921) Q13/12 D114 (G.NIMM Draft 2) - PowerPoint PPT Presentation
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v1.0 - 20050426
Document Cover Sheet
Project Number PN-3-0062
Document Title TIA-921+G.NIMM Presentation 10-17-05 at ITU-T SG12 and SG9
Source Spirent Communications
Contact Name: Jack Douglass 25701 Patterson Place Laguna Hills, CA 92653
For Incorporation Into TIA Publication X For Information
Intended Purpose of Document (Select one) Other (describe) -
The document to which this cover statement is attached is submitted to a Formulating Group or sub-element thereof of the Telecommunications Industry Association (TIA) in accordance with the provisions of Sections 6.4.1–6.4.6 inclusive of the TIA Engineering Manual dated March 2005, all of which provisions are hereby incorporated by reference.
Abstract
This document is a presentation that was given at the ITU-T SG12 and SG9 meetings in Geneva Oct 17 to 21 concerning TIA-921 and G.NIMM.
Telecommunications Industry Association TR-30.3/05-12-043
TIA-921 (PN-3-0062) and ITU-T G.NIMM
Network Model for Evaluating Multimedia Transmission Performance Over Internet Protocol
Link fail duration ms 0 64 128 256 400 800 1600 3000
Packet loss % 0 0.01 0.02 0.04 0.1 0.2 0.5 1
Reorder factor % 0 1 2 3 4 6 8 10
Destination Location (B) Parameters
Access B Occupancy % 0 1 2 4 8 15 30 50
MTU B bytes 512 512 1508 1508 1508 1508 1508 1508
LAN B Occupancy % 1 2 3 5 8 12 16 20
TIA-921 and ITU-T G.NIMM LAN and Access Rates
Table 7: Access Rates for Home Locations
Table 8: Access Rates for Business LocationsTable 6: LAN Rates for Business Locations
Table 5: LAN Rates for Home Locations
133 LAN/Access Rate Combinations
Home Rates
Business Rates
LAN Rate LOO Represents
Mbit/s %
4 75 802.11b, 10BaseT hub
20 25 802.11g, 100BaseT hub
LAN Rate LOO Represents
Mbit/s %
4 20 802.11b, 10BaseT
20 20 802.11g, 100BaseT hub
100 60 100 BaseT switched, Gbit Ethernet
Access Rate LOO Represents
Toward core From core %
kbit/s kbit/s
128 768 40 Cable, ADSL
384 1536 50 Cable, ADSL
384 3000 10 Cable, ADSL
Access Rate LOO Represents
Toward core From core %
kbit/s kbit/s
384 1536 40 ADSL entry
384 3000 15 ADSL premium
1536 1536 40 T1
43000 43000 5 T3
LAN and Access Rates (New Revision of Standard/Recomendation) will change as network conditions change
TIA-921 and ITU-T G.NIMMStatistically Based IP Network Impairment Conditions (ICs) based on SLAs
IC– 96AProbability (LOO = 0.00256% )
Call Quality Metric
Impairment Condition
TIA-921 and ITU-T G.NIMMStatistically Based IP Network Impairment Conditions (ICs) based on SLAs
Call Quality Metric
Impairment Condition
IC– 96EProbability (LOO = 0.01025% )
TIA-921 and ITU-T G.NIMMStatistically Based IP Network Impairment Conditions (ICs) based on SLAs
Link Failure
Route Flap
Call Quality Metric
Impairment Condition
IC– 96HProbability (LOO = 0.00256%)
TIA-921 and ITU-T G.NIMM Example of Network Model Coverage Curve
• The Network Model Coverage curves may be used to test the performance of a set of devices across a range of impairment conditions for a given quality metric.
• Test Results from 1064 Statistically based IP Network Impairment Combinations.
OR
TIA-921 and ITU-T G.NIMM Example of Network Model Coverage Curve
• The Network Model Coverage curves may be used to test the performance of a set of devices across a range of impairment conditions for a given quality metric.
• Test Results from 1064 Statistically based IP Network Impairment Combinations.
OR
R-Factor - Listening Quality vs. TIA-921 Network Model Coverage(G.711 PLC, 40 ms. jitter buffer)
0
10
20
30
40
50
60
70
80
90
100
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
% Network Model
R-L
Q
Test Profile A
Test Profile B
Test Profile C
History of TR30.3 Network Model Standards• TIA/EIA 496A-1989: Interface Between Data Circuit Terminating
Equipment (DCE) and the Public Switched Telephone Network
– Included Network Model for Evaluating Modem Performance
• TIA/EIA TSB 37A-1994: Telephone Network Transmission Model for Evaluating Analog Modem Performance, which became ITU-T Recommendation V.56bis-1995
• EIA/TIA TSB 38-1994: Test Procedures for Evaluation of 2-Wire 4 Kilohertz Voice Band Duplex Modems, which became ITU-T Recommendation V.56ter-1996
• ANSI/TIA/EIA 3700-1999: Telephone Network Transmission Model for Evaluating Analog Modem Performance
• ANSI/TIA/EIA 793 -2000: North American Telephone Network Transmission Model for Evaluating Analog Client and Digitally Connected Server Modems
• ANSI/TIA 876 – 2002: North American Network Access Transmission Model for Evaluating xDSL Modem Performance
TR30.3 Liaison Activities
• Liaisons activities between TR30.3 and appropriate committees to develop TIA-921 (PN-3-0062), Network Model for Evaluating Multimedia Transmission Performance Over Internet Protocol– TR41.4
– TR45.5
– ITU-T SG12
– ITU-T SG9
– ITU-T SG15
• Working with Operating Companies and Service providers to provide statistically accurate IP network impairment model