1CEOS Subgroup Meetings May 7-10, Frascati. Performance Monitoring Report - Testing Internet and EBnet networks between NASDA and various sites - Network Subgroup - May, 2002 Shin-ichi Sobue NASDA/SPPD Kengo Aizawa RESTEC

2CEOS Subgroup Meetings May 7-10, Frascati. - Purpose: to confirm network performance and plan new networks among the earth observation community. - Changes: NASDA upgraded the ATM Line Between Tsukuba and the EOC on Oct 27 th, M → 4M(bps) - Tools: tcpwatch, ping, traceroute Performance Monitoring (1) - Testing Internet Networks-

3CEOS Subgroup Meetings May 7-10, Frascati. -Test Route A (From EOC to various sites via the Internet) a. Source Node: HEOC/NASDA: azusa.eoc.nasda.go.jp b. Destination Nodes: 1. GSFC/NASA: g0acg01u.eoc.nasa.gov 2. JPL/NASA : yngvi.jpl.nasa.gov 3. CCRS: ceodev.ccrs.nrcan.go.ca 4. CSIRO: terra.eoc.csiro.au 5. AIT: noaa.acrors.ait.th

4CEOS Subgroup Meetings May 7-10, Frascati. NASDA IMnet APAN/ TransPac WIDE SGI NECTEC Abilene JPL AIT GSFC CSIRO ＴＫＳＣ Commercial Providers - Internet Routing - HEOC Upgrade 2M -> 4M CCRS Figure 1

5CEOS Subgroup Meetings May 7-10, Frascati. - Test Route B (From Tsukuba to GSFC via the Internet) a. Source Node: TKSC (NASDA): tkes12.tksc.nasda.go.jp b. Destination Node: 1. GSFC:

6CEOS Subgroup Meetings May 7-10, Frascati. Summary(1): Test Route A - Madian Daily Throughput - (Median of Daily Maximums and Minimums) Destination Throughput ( Kbps) Period (mm/dd/yy) max. - min. 1. GSFC /29/ /27/ /28/01 - 1/05/02 2. JPL /29/ /27/ /28/01 - 1/05/02 3. CCRS /29/ /27/ /28/01 - 1/05/02 4. CSIRO /29/ /27/ /28/01 - 1/05/02 5. AIT /29/ /27/ /28/01 - 1/05/02 There are wide margin between max. value and min. value due to heavy traffics a few times in a day. (as a result of MRTG between Tsukuba and EOC.)

7CEOS Subgroup Meetings May 7-10, Frascati. - Median Hourly Throughput - (Maximum and Minimum of median of Hourly Values for Entire Period. See Figure2) Destination Throughput ( Kbps) Period (mm/dd/yy) (Max - Min) 1. GSFC /29/ /27/ /28/01 - 1/05/02 2. JPL /29/ /27/ /28/01 - 1/05/02 3. CCRS /29/ /27/ /28/01 - 1/05/02 4. CSIRO /29/ /27/ /28/01 - 1/05/02 5. AIT /29/ /27/ /28/01 - 1/05/02

8CEOS Subgroup Meetings May 7-10, Frascati. Figure 2 This figure shows median of HourlyValues for Entire Period.

9CEOS Subgroup Meetings May 7-10, Frascati. Summary(2): Test Route B Destination Throughput ( Kbps) Period (mm/dd/yy) max. - min. 1. GSFC /25/ /27/ /28/01 - 1/05/02 Destination Throughput ( Kbps) Period (mm/dd/yy) max. - min. 1. GSFC /25/ /27/ /28/01 - 1/05/02 - Median Daily Throughput - - Median Hourly Throughput -

10CEOS Subgroup Meetings May 7-10, Frascati. Concerns Test Routes A (from EOC to each agencies) - After upgrading the ATM Line between Tsukuba and the EOC the average throughput improved and the maximums and minimums were more stable. [TKSC - GSFC(g0aeg01u), Figure 3] Test Routes B (from Tsukuba to GSFC) - After Oct 28 th on the TKSC – GSFC( ) route, both average throughput and hourly throughput fell by almost 20%. (Figure 4) (Traceroutes before and after Oct 28 th are shown in Figures 5.)

11CEOS Subgroup Meetings May 7-10, Frascati. Figure 3 Average throughput improved

12CEOS Subgroup Meetings May 7-10, Frascati. Figure 4 Drop (20% down)

13CEOS Subgroup Meetings May 7-10, Frascati. Figure 5 Traceroute results Before Oct. 28 th, 2001 After Oct. 28 th, About 40ms

14CEOS Subgroup Meetings May 7-10, Frascati. Performance Monitoring (2) - Testing EBnet Networks - -Purpose: to confirm network performance and plan new networks among the earth observation community. -Tools: tcpwatch, ping, traceroute

15CEOS Subgroup Meetings May 7-10, Frascati. - Test Route C (From EOC to various sites via EBnet) a. Source Node: HEOC (NASDA):hdds4c11.eoc.nasda.go.jp b. Destination Nodes: 1. GSFC(g0eag01 ): g0acg01.gsfcb.ecs.nasa.gov 2. GSFC(gscsafs): gsfcsafs.nascom.nasa.gov 3. ASF:

16CEOS Subgroup Meetings May 7-10, Frascati. Figure 6 EBnet Routing EOC JPL GSFC ASF 3M 5M 3M

17CEOS Subgroup Meetings May 7-10, Frascati. Destination Throughput ( Kbps) Period (mm/dd/yy) max. - min. 1. GSFC(goeag01) /26/01 - 3/02/02 2. GSFC(gscsafs) /07/01 - 3/02/02 3. ASF /23/01 - 3/02/02 Summary(3) : Test Route C Destination Throughput ( Kbps) Period (mm/dd/yy) max. - min. 1. GSFC(goeag01) /26/01 - 3/02/02 2. GSFC(gscsafs) /07/01 - 3/02/02 3. ASF /23/01 - 3/02/02 - Median Daily Throughput - - Median Hourly Throughput -

18CEOS Subgroup Meetings May 7-10, Frascati. Concerns (continued) Test Route C - As it is shown in Figure 7, Max average throughput continues to be around 1700 Kbps. The transmission buffer size was increased, but the throughput didn’t improve.

19CEOS Subgroup Meetings May 7-10, Frascati. Figure 7

20CEOS Subgroup Meetings May 7-10, Frascati. - Internet The performance decrease on the APAN - Abilene route should be investigated. - EBnet We performed an FTP performance test over EBnet between EOC and JPL( ). The Average performance was around 2.0 Mbps and Max performance was 2.35 Mbps. The results of the FTP test and traceroutes in Figures 8 to 11 indicate there is not a problem between and The traceroute times between and g0aeg01, gsfcsafs, ASF are rather long. Should they be investigated? Proposed Investigations

21CEOS Subgroup Meetings May 7-10, Frascati. Figure 8

22CEOS Subgroup Meetings May 7-10, Frascati. Figure 9

23CEOS Subgroup Meetings May 7-10, Frascati. Figure 10

24CEOS Subgroup Meetings May 7-10, Frascati. Figure 11