1. Targets for the SG 13 Caracas Meeting
Working Party 4/13
Network Performance and Resource Management
Topic Overview
WP 4/13 Structure and Responsibilities
Planned Meeting Schedule
Key Technical Issues
Expected Results

3. Planned WP 4/13 Caracas Meeting Schedule

4. Question 4/13 Broadband and IP Related Resource Management
Issue -- AAL2 Resource Mgmt (D111, D112, D144)
“Burstiness” of AAL2 connections strongly impacts link utilisation for a given delay quantile. For a fixed delay quantile, utilisation decreases with increasing burst size.
“Shaping” can be used to control bursts, increase utilization
Connection admission control must be based on AAL2 link characteristics (ALC) that describe traffic burstiness
Expected Results -- New I.371 Text on AAL2 RM
(Developed jointly with Q2/13)
Q4/13 will also progress work on Draft Rec. Y.iptc (Traffic
Control and Resource Management in IP-Based Networks)

5. Issue -- IP Packet Transfer QOS Parameters, Objectives
Question 6/13 Performance of IP-Based Networks and the Emerging Global Information Infrastructure
Issue -- IP Packet Transfer QOS Parameters, Objectives
New parameter (e.g., SESIP) to specify packet loss clustering
Metric(s) and objectives for IP packet delay variation (jitter)
Delay specifications for long complex paths
IP network Hypothetical Reference Paths, allocation rules
Possible new Recommendation on QOS at the TCP layer
Expected Result -- Stable Y.1541, Revision for Y.1540
IP/MM Workshop recommended Joint Meeting (SGs 13, 16, 12, 11) to harmonize QOS Classes

7. Question 7/13 B-ISDN/ATM Cell Transfer and Availability Performance
Issue -- Rec. I.356 performance allocation models
ATM/ADSL access links, ATM/IP Interworking (D138)
Use of inter-operator (rather than country-based) network models (TD11)
Expected Results: Proposed new performance models and allocation methods

8. Question 8/13 Transmission Error and Availability Performance
Issue -- “G.optperf” allocation model (D101)
Proposal: Change "international paths" to "multi- operator paths crossing international borders"
Questions:
Should fixed G.828 “terminating country” block allowance (17.5%) be allocated to “terminating domain”? Should the “routing factor” for the terminating domain be copied from G.828?
How many intermediate domains should be assumed? (Proposal: 4)
How allocate to intermediate domains? (Proposal: use block allowance and routing factor, satellite allocation from G.828)
Likely Results: New HRP and allocation proposals

9. Question 9/13 Call Processing Performance
Issue -- Draft Y QOS Classes
Proposals
Specify multiple call processing QOS classes for Hybrid IP networks to meet varying service requirements (D126)
Implement International Emergency Preference Scheme (E.106) in Hybrid IP networks (D117)
Expected Result: New call processing QOS class structure, including a default “best effort” class
IEPS requirement could be documented by defining an “emergency priority” QOS class