PORTS NUMBER OFF A HOST LIST
for i in `cat sw_fede.lst`; do echo "*** $i ***" ; snmpwalk -mALL -Cc -v2c -mALL -Ou -c 'h&rm&sro' "$i.netinfra.umontpellier.fr" .1.3.6.1.2.1.17.1.2.0; done