1. Activities of MPM based admission control device on NGN CJK test-bed
December 11-12, 2008
Test-bed Ad-hoc Group
Norihiro FUKUMOTO, Hideaki YAMADA
KDDI (KDDI R&D Labs.)

2. Activities of MPM and Admission Control Device
Agenda
Activities of MPM and Admission Control Device
Implementation
Installation plan on NGN CJK test-bed
Experimental result of local tests

3. Fig. Performance measurement reporting sequence of MPM
MPM Implementation
We have implemented MPM prototype and ready for tests now
Registration Procedures
Initiation Phase Procedures
Measurement Phase Procedures
Fig. Performance measurement reporting sequence of MPM

4. Admission control device
Admission control device is also implemented
An implementation of MPM subset
It is in accordance with Y.2173
It works based on full passive measurement
Fig. Admission control device, a subset of MPM with an admission control function

5. The purpose of the admission control device
For disaster recovery
A fire wall, which confines local congestion caused by disasters to local areas
An admission control , which works independently and locally
There are many of existing functional entities on NGN
An admission control device to have compatibility with existing entities
A full passive measurement scheme for perfect compatibility

6. Installation plan on CJK NGN test-bed
RTP flows
Fig. Software installation plan on CJK NGN test-bed

7. Fig. Performance measurement sequence of the admission control device
The behavior of the admission control device (Measurement the QoS of each segment)
I. Monitor RTP packets to calculate QoS of segment X (Access Network)
II. Monitor RTCP to calculate QoS of segment X (Access Network) plus segment Y (Core Network and other NGNs)
III. Estimate QoS of segment Y (Core Network and other NGNs) from I. and II.
Fig. Performance measurement sequence of the admission control device

8. The behavior of the admission control device (Admission control)
The device modifies signaling packets to perform admission control based on the measured QoS of each network segment
Fig. The behavior of the admission control device

9. An experimental result (Gap density under congestion)
Packet loss caused by congestion would be clearly separated from random packet loss
Fig. An experimental result of admission control

10. Thank you for your kind attentions. Q&A
This work is partly supported by the National institute of Information and Communications Technology (NICT).