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.)

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

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

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

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

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

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

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

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

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