This is an action object to perform various TFTP Get or Put functions.
The TFTP sever is specified in agTftpServer object.
img-get(2) - Download switch image from a specified image
file (agTftpImageFileName) on the TFTP server to
the destinated storage (agTftpImage).
cfg-get(3) - Download switch configuration from a specified
file (agTftpCfgFileName) on the TFTP server.
cfg-put(4) - Upload switch configuration to a specified
file (agTftpCfgFileName) on the TFTP server.
dump-put(5)- Download switch core dump to a specified
file (agTftpDumpFileName) on the TFTP server.
img-put(7) - Upload specified switch image to a specified image
file (agTftpImageFileName) on the TFTP server.
tsdump-put(5)- Download switch core dump to a specified
file (agTftpTSDumpFileName) on the TFTP server.
other(1) is returned always when read.