[wiki:Documentation]
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| [wiki:Documentation/NodeHandler/Commands Commands]
| nodes


= nodes: Address a set of nodes =

This command allows the experimenter to send commands and configure resources on all nodes simultaneously. 


== Syntax  ==
'''nodes(''setSelector'').''command''()[[BR]]
nodes(''setSelector'').''resource_path'' = ''value''[[BR]]
nodes(''setSelector'').''resource_path'' {...}

  * '''setSelector''': The set of nodes to use
  * '''command''': Command to issue on the set.
  * '''resource_path:''' Path to resource.
  * '''value:''' Value to assign to resource.

The supported syntax for the ''setSelector'' can be found in [wiki:Documentation/NodeHandler/Commands/defNodes defNodes] where it is simply called ''selector''.

The list of commands currently defined can be found '''missing'''. 

The following resource paths and their repsective value ranges are listed below:

  * '''net''' Network resource
    * '''e0, e1''' Ethernet interface
     * '''arp''' = ''true|false'' En/disable ARP
     * '''forward''' = ''true|false'' Enable forwarding
     * '''ip''' = ''address/netmask'' IP address of interface
     * '''up''' = ''true|false'' En/disable interface
     * [wiki:Documentation/NodeHandler/Commands/nodes-route route]
    * '''w0, w1''' Wireless interface
     * All the above
     * '''channel''' (intel only) = ''1..11; 36, 40, 44, 48, 52, 56, 60, 64, 149, 153, 157, 161''
     * '''essid''' = ''string''
     * '''frequency''' (intel only) = ''2.412..2.462''GHz (5 Mhz steps); ''5.18''GHz (20Mhz steps)
     * '''mode''' = ''master|managed|monitor'', ''ad-hoc'' (intel only)
     * '''rts''' (atheros only) = ''packetSizeThreshold'' [bytes]
     * '''rate''' (intel only) = ''1, 5, 11; 6, 9, 12, 18, 24, 36, 48, 54''
     * '''tx_power''' = ''-12..15'' dBm (intel), ''0..20'' dBm (atheros)
     * '''type''' = ''a/b/g''

== Usage ==

{{{
nodes('sender1').startApplications
nodes(['s1', 'r1']).net.w0.essid = "orbit"
nodes('sender').net.w0 { |w|
  w.essid = "orbit"
  w.ip = "%192.168.%x.%y"
}
}}}




== See Also ==

[wiki:Documentation/NodeHandler/Commands/allNodes allNodes]