Documentation | NodeHandler | 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()
nodes(setSelector).resource_path = value
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 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
    • 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..2.462GHz (5 Mhz steps); 5.18GHz (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

allNodes