一个采集服务器所接交换机端口信息的脚本（支持CISCO和H3C的交换机）

http://noops.me/?p=1184

[tex=code]function cisco(){
        net=$1
        tcpdump -nn -v -i $net -s 1500 -c 1 'ether[20:2] == 0x2000' > /tmp/tmp_get_port &
        sleep 60
        killall -9 tcpdump && return
        switch=`egrep "Device-ID|Device-ID" /tmp/tmp_get_port|sed "s/'//g"|awk '{print $NF}'`
        port=`egrep "Port-ID|Port-ID" /tmp/tmp_get_port|sed "s/'//g"|awk '{print $NF}'`
        vlan=`grep "VLAN ID" /tmp/tmp_get_port|awk '{print $NF}'`
        echo $switch > /tmp/tmp_get_port
        echo $port >> /tmp/tmp_get_port
        echo $vlan>> /tmp/tmp_get_port
}
function h3c(){
        net=$1
        tcpdump -i $net ether proto 0x88cc -A -s0 -t -c 1 -v > /tmp/tmp_get_port &
        sleep 60
        killall -9 tcpdump && cisco $net && return
        switch=`grep "System Name TLV" /tmp/tmp_get_port|sed -n '1p' |awk '{print $NF}'`
        port=`grep "Subtype Interface Name" /tmp/tmp_get_port|sed -n '1p' |awk '{print $NF}'`
        vlan=`grep "port vlan id" /tmp/tmp_get_port|sed -n '1p' |awk '{print $NF}'`
        echo $switch > /tmp/tmp_get_port
        echo $port >> /tmp/tmp_get_port
        echo $vlan>> /tmp/tmp_get_port
}
echo ""> /tmp/tmp_net_list
netlist=`ifconfig|egrep -i "eth|em|p2p"|awk '{print $1}'|grep -v ":"`
for net in `echo $netlist`;do
        h3c $net
        switch=`sed -n '1p' /tmp/tmp_get_port`
        port=`sed -n '2p' /tmp/tmp_get_port`
        vlan=`sed -n '3p' /tmp/tmp_get_port`
        echo $net" "$switch" "$port" "$vlan >> /tmp/tmp_net_list
done[/tex]