3 # modified from https://gist.github.com/krokodilerian/a88b4ae992706c22e0b0
4 # see /var/lib/snmp/mibs/ietf/IF-MIB
7 echo Usage: "$0" hostname ifInErrors ifOutErrors ifInDiscards
11 log=/dev/shm/port-status/
12 test -d $log || mkdir $log
15 shift # rest of arguments are IfEntry SEQUENCE
18 snmpwalk="snmpwalk -Oqs -v2c -Cc -c $COMMUNITY $sw"
23 for oid in ifName ifHighSpeed ifOperStatus ifType $* ifAlias
25 echo -n "# snmpwalk $sw [$oid] = "
27 $snmpwalk $oid | cut -d. -f2- | tee $log/$sw-$oid | wc -l
29 # put [] around alias and remove empty ones
30 if [ "$oid" = 'ifAlias' ] ; then
31 cat $log/$sw-$oid | sed -e 's/ / [/' -e 's/$/]/' -e 's/ \[\]$//' > $log/$sw-$oid.new && mv $log/$sw-$oid.new $log/$sw-$oid
34 if [ ! -s $log/$sw ] ; then
35 mv $log/$sw-$oid $log/$sw
37 join -a 1 $log/$sw $log/$sw-$oid > $log/$sw.new && mv $log/$sw.new $log/$sw
42 # add switch name prefix
43 cat $log/$sw | sed "s/^/$sw /" > $log/$sw.new && mv $log/$sw.new $log/$sw
49 snmp="snmpget -v 2c -c $COMMUNITY -Cf -Ov -OQ $sw"
51 numports=`$snmp IF-MIB::ifNumber.0`
54 for PORT in `seq 1 $numports`; do
56 ## name=`$snmp IF-MIB::ifName.$i`
57 ## alias=`$snmp IF-MIB::ifAlias.$i`
58 ## if [ "$name" = "No Such Instance currently exists at this OID" ]; then
62 ## iftype=`$snmp IF-MIB::ifType.$i`
64 ### if [ "$iftype" = "other" ] || [ "$iftype" = propVirtual ] || [ "$iftype" = softwareLoopback ]; then
68 ## status=`$snmp IF-MIB::ifOperStatus.$i`
69 ## if [ "$status" = "notPresent" ] ; then
73 ## #descr=`$snmp IF-MIB::ifDescr.$i`
74 ## #speed=`$snmp IF-MIB::ifSpeed.$i | sed 's/000000//'`
75 ## speed=`$snmp IF-MIB::ifHighSpeed.$i`
78 ## for add in "$@"; do
79 ## extra="$extra "`$snmp IF-MIB::$add.$i`
82 ### echo "## $sw [$name] $iftype $status $descr $speed"
83 ## #echo "$sw $i $name $speed $status $iftype$extra [$alias]" | tee -a $log/$sw
85 echo "$sw $PORT "`$snmp IF-MIB::ifName.$PORT $* IF-MIB::ifHighSpeed.$PORT IF-MIB::ifOperStatus.$PORT IF-MIB::ifType.$PORT IF-MIB::ifAlias.$PORT` | grep -v 'No Such Instance currently exists at this OID' | sed 's/\(ethernetCsmacd\) \(..*\)$/\1 [\2]/' | tee -a $log/$sw
90 ports_changed=`cd $log && git diff $sw | grep '^-' | awk '{ print $3 }' | tr '\n' ' '`
91 if [ ! -z "$ports_changed" ] ; then
92 cd $log && git commit -m "$sw : $ports_changed" $log/$sw