Note that winding (indexing) into a file is possible on a read (get),
there is a drawback in this feature due to the nature of TFTP, the
entire file is transferred across the network. But only the desired
section of the file is written to the user memory.
Refer to the DARPA Internet Request for Comments RFC-783 for
the description of the TFTP protocol.
Prior to the TFTP session an ARP request is transmitted for the
hardware address (Ethernet) of the server.
At time-out conditions the file transfer process can be aborted by
pressing the
Network I/O Teach
Displays the Network Controllers/Nodes that are supported by this version of the firmware. H Displays all Network Controllers/Nodes that are present in the system. The display also includes the Protocol (Internet) and Hardware (Ethernet) addresses.The NIOT command allows you to "teach" a new network configuration to the debugger for use by the .NETxxx system calls. NIOT lets you modify the controller and device descriptor tables used by the .NETxxx system calls for network access. Note that because the debugger commands that access the network use the same interface as the system calls, changes in the descriptor tables affect all those commands. These commands include NIOP, NBO, NBH, and also any user program that uses the .NETxxx system calls.
As stated in the description of the IOT command
each controller/device LUN combination has its own descriptor table; this table houses configuration and run-time parameters. If the specified network interface has been specified to Network Automatic Boot, then any changes made by this command is saved in NVRAM (you are prompted). The following is a list of the prompts for the parameters that are accessible via the NIOT command. A retry value of "0" is interpreted as no maximum, always retry.
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