Network Configurations: Difference between revisions
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===Introduction=== |
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An XO can connect to its neighborhood using different configurations and topologies. They are prioritized in terms of connectivity and robustness as |
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*Is the XO connected to [[Under_a_Tree|Link-local]] or a mesh? |
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*School Server Mesh |
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*Is it connected to an [[One_Laptop_acting_as_MPP|MPP]]? |
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*Is it connected to the internet? |
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*Mesh Portal Point |
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*Is it connected to a jabber server? |
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*Link Local |
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*What is the ip? |
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The Network Manager will try to connect to the best available configuration according to priority. The configurations will be attempted one by one from top to bottom for all available channels, until eventually one is successfully established. To skip some steps in this procedure, and force a specific configuration you must create and/or edit <code>/etc/NetworkManager/mesh-start</code> with |
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*school-mpp |
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*infra |
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*xo-mpp |
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*local |
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===School server mesh=== |
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[[Image:Schoolserver.PNG|right]] |
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The wireless configuration of the network can be examined using the <code>iwconfig eth0</code> command. We get MAC layer information such as |
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A school server mesh refers to connecting to a mesh network, which also includes a School Server. This is mesh point, which also acts an internet gateway. |
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#ESSID |
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#*olpc-mesh : Indicates a mesh with or without internet connectivity |
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#Mode |
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#*Managed : It is an Access Point(AP) configuration |
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#*Ad-hoc : It is a mesh configuration(no infrastracture) |
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#Frequency |
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#*2.412 : Channel 1 |
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#*2.437 : Channel 6 |
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#*2.462 : Channel 11 |
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#*Channels 1,6, 11 can be used to join a Link-local mesh |
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#*Channels 1, 6, 11 can also be a Schoolserver mesh (ch 1 is almost always on at OLPC offices) |
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#*At OLPC offices, '802.11 Media lab' AP operates on Channels 6 and 11 |
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#Cell/AP Mac |
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#*Cell : A virtual 02:xx:xx:... MAC address assigned by the some mesh points. It indicates mesh configuration |
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Revision as of 05:08, 7 November 2007
Introduction
An XO can connect to its neighborhood using different configurations and topologies. They are prioritized in terms of connectivity and robustness as
- School Server Mesh
- Access Point
- Mesh Portal Point
- Link Local
The Network Manager will try to connect to the best available configuration according to priority. The configurations will be attempted one by one from top to bottom for all available channels, until eventually one is successfully established. To skip some steps in this procedure, and force a specific configuration you must create and/or edit /etc/NetworkManager/mesh-start with
- school-mpp
- infra
- xo-mpp
- local
School server mesh
A school server mesh refers to connecting to a mesh network, which also includes a School Server. This is mesh point, which also acts an internet gateway.