if { $host == "swm" } { set tftpserver "10.133.28.160" }
if { $host == "sw1" } { set tftpserver "10.133.26.160" }
if { $host == "sw2" } { set tftpserver "10.133.26.160" }
if { $host == "swm" } { set tftpserver "10.133.28.160" }
if { $host == "sw1" } { set tftpserver "10.133.26.160" }
if { $host == "sw2" } { set tftpserver "10.133.26.160" }