WIDE Camp Demonstration, March 7th-10th 2006

This page presents the demonstrations held at the WIDE Camp in March 2006.

Introduction

The WIDE Project organizes twice a year a 4-days workshop/meeting for its members, known as the WIDE Camp. This meeting is a good opportunity to have some network expriments and provide nice services to the users.

The WIDE Camp network offers native IPv6 access. This time, the IPv6 connectivity will be provided via a multihomed Mobile Router that will act as the IPv6 gateway of the network. As hundreds of people join the WIDE Camp and use the network, we can expect to test the behaviour of the Mobile Router in a real environment.

In this camp, the Nautilus6 project will provide two different NEMO Basic Support demonstrations. One is using a NEPL (NEMO Platform for Linux) mobile router and the other is using a SHISA mobile router. The detailed description of each demonstration is described in the following sections:

• Recover from network failures thanks to NEMO Basic Support and NEPL
• Seamless handover using multiple care-of address registration with SHISA mobility stack
• How to join the experiment?
• IPv6 contents

Scenario

The Mobile Router uses NEPL (NEMO Platform for Linux) on a 2.6.14 Linux kernel. NEPL is a NEMO Basic Support implementation is based on MIPL2 and has been developped and tested in cooperation between the Go-Core Project (Helsinki Univestity of Technology) and Nautilus6.

The Mobile Router has three egress interfaces connected to three different access technologies. Behind the Mobile Router is connected the whole WIDE Camp network, with hundred of nodes, tens of servers and routers. This Mobile Router provides native IPv6 connectivity to the whole network. All the incoming and outgoing IPv6 traffic will go through this Mobile Router.

The Mobile Router is multihomed: it is connected to the Internet via three egress interfaces, connected to three different access networks. We simulate access network failures by disconnecting regularly one of the interface. The Mobile Router can then perform handovers between three different interfaces, with a very low delay and a minimum impact to the Camp network nodes. NEMO Basic Support thus allow to recover easily from access network failures, transparently to all the Mobile Network Nodes.

Statistics

Some live statistics can be checked here:

Presentation Materials

This section gathers some presentation materials about this demonstration:

Scenario

At the last WIDE camp (September 2005), we had performed the NEMO BS demonstration with a mobile router which has only one physical interface to connect to the Internet. In the last demonstration, we faced quite big service disruption while the mobile router located at the boundary of the camp network was performing handover. We thought that one of the reasons of the service disruption was the fact there was period that the mobile router was disconnected from the Internet completely. This time, our main purpose is to avoid the service disrpution during handover.

In this demonstration, we will use the Multiple Care-of Address registration technology which is specified as draft-wakikawa-mobileip-multiplecoa-04.txt (expired). The WIDE camp network is connected to the Internet using three different external links. To reduce the service disruption, we will pre-register the care-of address of the link, which we are moving to, before we disconnect from the link currently attached. In the NEMO BS specification, a mobile router cannot register multiple care-of addresses to one home address at the same time. The specification proposed in the draft relaxes the limitation.

Presentation materials

• The slides explaining the scenario and the motivations (PDF)

Statistics

The statistics of the interfaces of the mobile router can be monitored at the web page provided by the camp mesurement team.

About SHISA

SHISA is a BSD based Mobile IPv6/NEMO BS implementation build on top of the KAME IPv6 stack. The latest kit is available from the KAME web page. As already being announced, the KAME project concludes at March 2006. The development of SHISA will be continued in the Nautilus6 project as its sub activities.

It's easy: just use as much as possible the IPv6 connectivity offered during the WIDE Camp (be sure to use the following DNS: 2001:200:0:8479::1).

We also provide dashboards to the MacOSX users: check the IPv6 connectivity and generate few IPv6 traffic (icmp6 echo/reply) with our v6dash dashboard.

In order to generate some IPv6 traffic, you can freely use the following IPv6 contents:

• Check our IPv6 webcam, located in Shin-Kawasaki, Japan.
• Watch one of the following short movies, using IPv6 HTTP streaming: 405, The Movie - The Killer Bean 2 - The Building - The Big Fall

Other IPv6-enabled softwares are available on our software server: for example, KPhone/Piv6 (a a SIP VoIP softphone with IM support for Linux).