1. Page - 1 76 th IETF – Hiroshima, Japan, November 2009 Diagnostic tool-test for MPLS transport profile Feng Huang feng.f.huang@alcatel-sbell.com.cnfeng.f.huang@alcatel-sbell.com.cn Lieven Levrau Lieven.Levrau@alcaltel-lucent.comLieven.Levrau@alcaltel-lucent.com Alcatel Lucent Han Lilihan@chinamobile.comlihan@chinamobile.com China Mobile Ruiquan Jingjingrq@ctbri.com.cnjingrq@ctbri.com.cn China Telecom draft-flh-mpls-tp-oam-diagnostic-test-00

2. Page - 2 76 th IETF – Hiroshima, Japan, November 2009 Authors/Contributors Feng Huang (Alcatel-lucent Shanghai Bell) Lieven Levrau (Alcatel Lucent) Han Li (China Mobile) Ruiquan Jing (China Telecom)

3. Page - 3 76 th IETF – Hiroshima, Japan, November 2009 What’s diagnostic tools Diagnostic tools are used for diagnose fault or performance, which including: 1.Loopback - looping the traffic at an Intermediate Point(MIP) or End point (MEP) back to the originating e nd Point-loopback. 2.Bandwidth/throughput estimating or verification 3.Frame loss/delay measurement

4. Page - 4 76 th IETF – Hiroshima, Japan, November 2009 What’s diagnostic tools -TST Diagnostic tool-TST is used for verifying throughput one-way or two way on-demand in-service or out-of-service. Throughput is a capacity in terms of line rate; it is the amount of bits observed passing a point during a time interval.

5. Page - 5 76 th IETF – Hiroshima, Japan, November 2009 Out of service test Client data traffic is disrupted in the diagnosed entity by LCK function. The source MEP transmits TST packets to the target MEP,and gradually increase TST packet bandwidth until hitting a threshold TST packet traffic loss rate.

6. Page - 6 76 th IETF – Hiroshima, Japan, November 2009 In service test For further study

7. Page - 7 76 th IETF – Hiroshima, Japan, November 2009 TST frame suggestion TST frame including: –Performance counter such as send time, received time, send packets, received packets. –TST TLV such as test pattern such as NULL, PBRS, RFC2544

8. Page - 8 76 th IETF – Hiroshima, Japan, November 2009 Discussion Is there need throughput test tool (TST) for MPLS-TP? Test in service ?

9. Page - 9 76 th IETF – Hiroshima, Japan, November 2009 Next Steps Update it to be version 01 according to comments input