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UDP Multicast Open (UDP Multicast Open (Write-Only)) (G Dataflow)

Version:
    Last Modified: March 15, 2017

    Opens a UDP multicast socket with write-only access on the port you specify.

    Programming Patterns
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    net address

    Network address to listen on. Specifying an address is useful if you have more than one network card, such as two Ethernet cards, and want to listen only on the card with the specified address. If you do not specify a network address, this node listens on all network addresses. Use the String to IP Address node to obtain the IP network address of the current computer.

    This input supports scalar strings and unsigned 32-bit integers.

    Default: 0

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    port

    The local port with which you want to create a UDP socket.

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    time-to-live

    Number of routers, minus 1, to forward a datagram. The time-to-live (TTL) value applies to all datagrams sent using this socket. The following table lists what action occurs to a multicast datagram when you specify a value for the TTL parameter.

    0 The datagram remains on the host computer.
    1 Sends the datagram to every client on the same local subnet that subscribes to that IP address. Hubs/repeaters and bridges/switches forward the datagram. Routers do not forward the datagram if the TTL is 1.
    >1 Sends the datagram and routers forward it through TTL-1 layers.

    Default: 1

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    error in

    Error conditions that occur before this node runs.

    The node responds to this input according to standard error behavior.

    Standard Error Behavior

    Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

    error in does not contain an error error in contains an error
    If no error occurred before the node runs, the node begins execution normally.

    If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.

    If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.

    Default: No error

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    connection ID

    A network connection refnum that uniquely identifies the connection. Use this value to refer to this connection in subsequent node calls.

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    error out

    Error information.

    The node produces this output according to standard error behavior.

    Standard Error Behavior

    Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

    error in does not contain an error error in contains an error
    If no error occurred before the node runs, the node begins execution normally.

    If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.

    If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.

    Where This Node Can Run:

    Desktop OS: Windows

    FPGA: This product does not support FPGA devices


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