March 15, 2013 - March 16, 2013
Wakayama Prefecture, JAXA
|Location of Experiment||
Wakayama Prefecture Headquarter South Annex: Komatsubara-street, Wakayama-city, Wakayama prefecture
|Outline of Experiment|| At the training on collection and transmission of information conducted by Wakayama prefecture, JAXA performed the communication training aimed at connecting “Kizuna” and Wakayama prefecture backbone network named as "Kinokuni e-Net" under the assumption that Iwade city was isolated by disconnection of terrestrial communication due to flood damage by a typhoon.
|Result of Experiment||
◆Backbone network connection by Kizuna’s Internet connection
By connecting Kizuna earth station installed at a virtual stricken area (Wakayama Prefecture Headquarters South Annex) to Wakayama prefecture backbone network via the Internet (using Internet connection gateway at Tsukuba Space Center), it was verified that Thin Client, Financial Accounting System, File Sharing Server and others for regular routines were available.
If any terrestrial communication is disconnected due to disaster, the systems for regular routines are available ongoingly by installing Kizuna earth station. Because the communication speed of “Kizuna” is higher than other commercial satellites, people don’t feel uncomfortable against time delay compared to a normal performance.
Wakayama Prefecture Headquarters Experimental site
South Annex: Portable VSAT
◆Backbone network connection by using two earth stations
*taggedVLAN: Method to distinguish VLAN groups by short fixed length tag attached to the Ethernet Frame
In response to the resource of Kizuna earth station and the magnitude of disaster, there is a choice between the connection to backbone network via the Internet or the direct connection between two earth stations at each site. VPN router necessary for encapsulation is available in the market and the packet size of ground network equipment is not required to change. It is one of the advantages of “Kizuna” that the connection with equipment for existing ground network is easy.
Naka Promotion Bureaus: Portable VSAT Experimental site