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]